v3.26.1
Investment Risks
Apr. 30, 2026
T-REX 2X LONG ALMU DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of ALMU’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of ALMU during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how ALMU volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) ALMU volatility; b) ALMU performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to ALMU. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of ALMU volatility and ALMU performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to ALMU; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of ALMU.

During periods of higher ALMU volatility, the volatility of ALMU may affect the Fund’s return as much as, or more than, the return of ALMU. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of ALMU during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if ALMU provided no return over a one-year period during which ALMU experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if ALMU’s return is flat. For instance, if ALMU’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of ALMU and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of ALMU. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

ALMU’s annualized historical daily volatility rate for the three-year period ended December 31, 2025 was 134.98%. ALMU’s annualized daily volatility rates were as follows:
    
2023    156.59%
2024    146.34%
2025    108.54%

ALMU’s annualized performance for the three-year period ended December 31, 2025 was 98.93%. Historical volatility and performance are not indications of what ALMU volatility and performance will be in the future. ALMU’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for ALMU is $25.88 on July 30, 2025 and the 52-week low stock price for ALMU is $6.55, which occurred on April 23, 2025. ALMU’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG ALMU DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of ALMU will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in ALMU, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if ALMU subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if ALMU does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with ALMU and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example,
seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG ALMU DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other
recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG ALMU DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG ALMU DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other
recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG ALMU DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG ALMU DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of ALMU, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG ALMU DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to ALMU that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG ALMU DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of ALMU at the market close on the first trading day and the value of ALMU at the time of purchase. If ALMU gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if ALMU declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of ALMU.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG ALMU DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to ALMU and therefore achieve its daily leveraged investment objective. The Fund’s exposure to ALMU is impacted by ALMU’s
movement. Because of this, it is unlikely that the Fund will be perfectly exposed to ALMU at the end of each day. The possibility of the Fund being materially over- or under-exposed to ALMU increases on days when ALMU is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) ALMU. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with ALMU. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to ALMU. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of ALMU. Any of these factors could decrease the correlation between the performance of the Fund and ALMU and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG ALMU DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG ALMU DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Aeluma, Inc. is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Aeluma, Inc. and make no representation as to the performance of ALMU. Investing in the Fund is not equivalent to investing in ALMU. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to ALMU.
T-REX 2X LONG ALMU DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG ALMU DAILY TARGET ETF | ALMU Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
ALMU Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, ALMU faces risks unique to its operations as an early-stage semiconductor and photonics company focused on developing compound semiconductor materials and devices, which may not yet have established commercial-scale operations or consistent revenues. These risks include, among others, substantial uncertainty in research and development activities and the ability to successfully transition from development to commercialization; technical performance and product qualification risk, including the ability to meet customer specifications and reliability standards; manufacturing and scale-up risk, including dependence on third-party fabrication partners, foundries, or specialized suppliers; and supply-chain constraints, including limited availability of specialized materials, wafers, or fabrication capacity, and exposure to increased costs; dependence on a limited number of potential customers or development partners; and the need to
obtain additional financing to support ongoing operations and growth. The trading price of ALMU common stock may be volatile, particularly given its limited operating history, evolving business model, and sensitivity to developments in semiconductor and photonics markets, and ALMU’s business strategy and end-market focus may continue to evolve.
T-REX 2X LONG ALMU DAILY TARGET ETF | Technology Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Technology Sector Risk.    The market prices of technology-related securities tend to exhibit a greater degree of market risk and sharp price fluctuations than other types of securities. These securities may fall in and out of favor with investors rapidly, which may cause sudden selling and dramatically lower market prices. Technology securities may be affected by intense competition, obsolescence of existing technology, general economic conditions and government regulation and may have limited product lines, markets, financial resources, or personnel. Technology companies may experience dramatic and often unpredictable changes in growth rates and competition for qualified personnel. These companies are also heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely impact a company’s profitability. A small number of companies represent a large portion of the technology industry. In addition, a rising interest rate environment tends to negatively affect technology companies, those technology companies seeking to finance expansion would have increased borrowing costs, which may negatively impact earnings. Technology companies having high market valuations may appear less attractive to investors, which may cause sharp decreases in their market prices.
T-REX 2X LONG ALMU DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Aeluma, Inc. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Aeluma, Inc. is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, ALMU is assigned to the semiconductors industry.

•Semiconductor Industry Risk. Semiconductor companies may have limited product lines, markets, financial resources or personnel. Semiconductor companies typically face intense competition, potentially rapid product obsolescence and high capital costs and are dependent on third-party suppliers and the availability of materials. They are also heavily dependent on intellectual property rights and may be adversely affected by loss or impairment of those rights. Semiconductor companies are also affected by the economic performance of their customers.
T-REX 2X LONG ALMU DAILY TARGET ETF | Industry Concentration Risk, Semiconductor Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Semiconductor Industry Risk. Semiconductor companies may have limited product lines, markets, financial resources or personnel. Semiconductor companies typically face intense competition, potentially rapid product obsolescence and high capital costs and are dependent on third-party suppliers and the availability of materials. They are also heavily dependent on intellectual property rights and may be adversely affected by loss or impairment of those rights. Semiconductor companies are also affected by the economic performance of their customers.
T-REX 2X LONG ALMU DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG ALMU DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG ALMU DAILY TARGET ETF | Micro-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Micro-Capitalization Company Risk. Micro-capitalization companies generally have extremely limited financial, managerial, and operational resources, narrow product lines or services, and limited operating histories. These companies may be highly dependent on a small number of products, customers, or key personnel and may have limited access to capital markets or financing on favorable terms. As a result, micro-cap companies may be particularly vulnerable to adverse business, economic, or market developments, and their securities may experience substantial price volatility, low trading volumes, and reduced liquidity. These factors may make it difficult to buy or sell shares at desired prices and may increase the risk of significant losses.
T-REX 2X LONG ALMU DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with ALMU. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that ALMU value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the ALMU. Under such circumstances, the market for ALMU may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of ALMU and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for ALMU and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of ALMU and correlated derivative instruments.
T-REX 2X LONG ALMU DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with ALMU and may incur substantial losses. If there is a significant intra-day market event and/or ALMU experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG ALMU DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of ALMU does not provide leveraged exposure to ALMU and, as a result, if the Fund invests directly in common stock of ALMU to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG ALMU DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG ALMU DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for
distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG ALMU DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG ALMU DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG ALMU DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG ALMU DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG ALMU DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG ALMU DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG ALMU DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited
periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG ALMU DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG ALMU DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG AMPX DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of AMPX’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of AMPX during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how AMPX volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) AMPX volatility; b) AMPX performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to AMPX. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of AMPX volatility and AMPX performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to AMPX; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of AMPX.

During periods of higher AMPX volatility, the volatility of AMPX may affect the Fund’s return as much as, or more than, the return of AMPX. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of AMPX during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if AMPX provided no return over a one-year period during which AMPX experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if AMPX’s return is flat. For instance, if AMPX’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of AMPX and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of AMPX. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

AMPX’s annualized historical daily volatility rate for the four-year period ended December 31, 2025 was 130.60%. AMPX’s annualized daily volatility rates were as follows:
    
2022    257.04%
2023    99.40%
2024    120.61%
2025    111.86%

AMPX’s annualized performance for the four-year period ended December 31, 2025 was -6.94%. Historical volatility and performance are not indications of what AMPX volatility and performance will be in the future. AMPX’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for AMPX is $22.80 on April 22, 2026 and the 52-week low stock price for AMPX is $1.97, which occurred on April 29, 2025. AMPX’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG AMPX DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of AMPX will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in AMPX, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if AMPX subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if AMPX does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with AMPX and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen.
Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG AMPX DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other
recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG AMPX DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG AMPX DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other
recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG AMPX DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG AMPX DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of AMPX, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG AMPX DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to AMPX that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG AMPX DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of AMPX at the market close on the first trading day and the value of AMPX at the time of purchase. If AMPX gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if AMPX declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of AMPX.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG AMPX DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to AMPX and therefore achieve its daily leveraged investment objective. The Fund’s exposure to AMPX is impacted by AMPX’s
movement. Because of this, it is unlikely that the Fund will be perfectly exposed to AMPX at the end of each day. The possibility of the Fund being materially over- or under-exposed to AMPX increases on days when AMPX is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) AMPX. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with AMPX. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to AMPX. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of AMPX. Any of these factors could decrease the correlation between the performance of the Fund and AMPX and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG AMPX DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG AMPX DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Amprius Technologies, Inc. is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Amprius Technologies, Inc. and make no representation as to the performance of AMPX. Investing in the Fund is not equivalent to investing in AMPX. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to AMPX.
T-REX 2X LONG AMPX DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG AMPX DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Amprius Technologies, Inc. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Amprius Technologies, Inc. is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, AMPX is assigned to the electrical equipment and parts industry.

•Cyclicality, Supply Chain, and Margin Pressure Risk (Electrical Equipment & Parts). Companies in the electrical equipment and parts industry may be subject to cyclical demand tied to industrial production, construction activity, infrastructure spending, and broader economic conditions. The industry can also be vulnerable to input cost volatility (e.g., metals, resins, semiconductors), global supply chain disruptions, and tariffs or trade restrictions, which may increase operating costs or delay deliveries. In addition, pricing pressure, rapid technology change, and competition may compress margins or reduce profitability. These factors could negatively impact revenues, earnings, and the market value of securities held by the fund.
T-REX 2X LONG AMPX DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG AMPX DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG AMPX DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with AMPX. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that AMPX value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the AMPX. Under such circumstances, the market for AMPX may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of AMPX and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for AMPX and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of AMPX and correlated derivative instruments.
T-REX 2X LONG AMPX DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with AMPX and may incur substantial losses. If there is a significant intra-day market event and/or AMPX experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG AMPX DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of AMPX does not provide leveraged exposure to AMPX and, as a result, if the Fund invests directly in common stock of AMPX to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG AMPX DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG AMPX DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for
distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG AMPX DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG AMPX DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG AMPX DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG AMPX DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG AMPX DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG AMPX DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG AMPX DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited
periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG AMPX DAILY TARGET ETF | AMPX Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
AMPX Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, AMPX faces risks unique to its operations,as an early-stage battery technology company focused on the development and commercialization of silicon anode lithium-ion batteries, which may not yet have achieved large-scale commercial production or consistent revenues. These risks include, among others, manufacturing scale-up and execution, including the ability to expand production capacity, achieve targeted yields, and maintain product quality substantial uncertainty in scaling its manufacturing processes, including the ability to expand production capacity, achieve targeted yields, maintain product quality, and transition from pilot to high-volume manufacturing; supply-chain and raw material risks, including the availability and cost of battery materials and components; particularly specialized inputs required for silicon anode technology; customer qualification and adoption risk, including long validation cycles, stringent
performance requirements, and dependence on a limited number of potential customers in sectors such as aerospace, defense, and electric mobility; and competition from larger and better-capitalized battery manufacturers and alternative battery technologies competition from larger and more established battery manufacturers, as well as alternative energy storage technologies, which may limit market adoption of AMPX’s products; and the need to obtain additional capital to fund operations, expand manufacturing capacity, and support commercialization efforts. The trading price of AMPX common stock may be volatile, particularly given its limited operating history, evolving commercialization strategy, and sensitivity to developments in battery technology markets, and AMPX’s business strategy and end-market focus may continue to evolve.
T-REX 2X LONG AMPX DAILY TARGET ETF | Industrials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industrials Sector Risk. The Fund’s assets will be concentrated in the industrials sector, which means the Fund will be more affected by the performance of the industrials sector than a fund that is more diversified. Industrial companies are affected by supply and demand both for their specific product or service and for industrials sector products in general. Government regulation, world events, exchange rates and economic conditions, technological developments and liabilities for environmental damage and general civil liabilities will likewise affect the performance of these companies. Transportation securities, a component of the industrials sector, are cyclical and have occasional sharp price movements which may result from changes in the economy, fuel prices, labor agreements and insurance costs.
T-REX 2X LONG AMPX DAILY TARGET ETF | Industry Concentration Risk, Cyclicality, Supply Chain, And Margin Pressure Risk (Electrical Equipment & Parts) Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cyclicality, Supply Chain, and Margin Pressure Risk (Electrical Equipment & Parts). Companies in the electrical equipment and parts industry may be subject to cyclical demand tied to industrial production, construction activity, infrastructure spending, and broader economic conditions. The industry can also be vulnerable to input cost volatility (e.g., metals, resins, semiconductors), global supply chain disruptions, and tariffs or trade restrictions, which may increase operating costs or delay deliveries. In addition, pricing pressure, rapid technology change, and competition may compress margins or reduce profitability. These factors could negatively impact revenues, earnings, and the market value of securities held by the fund.
T-REX 2X LONG AMPX DAILY TARGET ETF | Mid-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Mid-Capitalization Company Risk. Mid-capitalization companies may have limited financial resources, narrower product lines, and less diversified markets than larger, more established companies. While mid-cap companies often have greater growth potential than large-cap firms, they may also be more sensitive to changing market conditions, competitive pressures, and economic downturns. Their securities may experience greater price volatility and may be less liquid than those of large-cap companies, which could affect their market value and investment returns.
T-REX 2X LONG AMPX DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG AMPX DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG AXTI DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of AXTI’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of AXTI during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how AXTI volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) AXTI volatility; b) AXTI performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to AXTI. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of AXTI volatility and AXTI performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to AXTI; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of AXTI.
During periods of higher AXTI volatility, the volatility of AXTI may affect the Fund’s return as much as, or more than, the return of AXTI. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of AXTI during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if AXTI provided no return over a one-year period during which AXTI experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if AXTI’s return is flat. For instance, if AXTI’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of AXTI and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of AXTI. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

AXTI’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 85.01%. AXTI’s annualized daily volatility rates were as follows:
    
2021    69.31%
2022    60.75%
2023    62.66%
2024    112.94%
2025    104.00%

AXTI’s annualized performance for the five-year period ended December 31, 2025 was 11.30%. Historical volatility and performance are not indications of what AXTI volatility and performance will be in the future. AXTI’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for AXTI is $90.10 on April 22, 2026 and the 52-week low stock price for AXTI is $1.23, which occurred on May 7, 2025. AXTI’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG AXTI DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of AXTI will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in AXTI, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if AXTI subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if AXTI does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with AXTI and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade
at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG AXTI DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG AXTI DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG AXTI DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG AXTI DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG AXTI DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of AXTI, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG AXTI DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to AXTI that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG AXTI DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of AXTI at the market close on the first trading day and the value of AXTI at the time of purchase. If AXTI gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if AXTI declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of AXTI.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG AXTI DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to AXTI and therefore achieve its daily leveraged investment objective. The Fund’s exposure to AXTI is impacted by AXTI’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to AXTI at the end of each day. The possibility of the Fund being materially over- or under-exposed to AXTI increases on days when AXTI is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) AXTI. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with AXTI. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to AXTI. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of AXTI. Any of these factors could decrease the correlation between the performance of the Fund and AXTI and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG AXTI DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG AXTI DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. AXT, Inc. is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of AXT, Inc. and make no representation as to the performance of AXTI. Investing in the Fund is not equivalent to investing in AXTI. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to AXTI.
T-REX 2X LONG AXTI DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG AXTI DAILY TARGET ETF | Technology Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Technology Sector Risk. The market prices of technology-related securities tend to exhibit a greater degree of market risk and sharp price fluctuations than other types of securities. These securities may fall in and out of favor with investors rapidly, which may cause sudden selling and dramatically lower market prices. Technology securities may be affected by intense competition, obsolescence of existing technology, general economic conditions and government regulation and may have limited product lines, markets, financial resources, or personnel. Technology companies may experience dramatic and often unpredictable changes in growth rates and competition for qualified personnel. These companies are also heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely impact a company’s profitability. A small number of companies represent a large portion of the technology industry. In addition, a rising interest rate environment tends to negatively affect technology companies, those technology companies seeking to finance expansion would have increased borrowing costs, which may negatively impact earnings. Technology companies having high market valuations may appear less attractive to investors, which may cause sharp decreases in their market prices.
T-REX 2X LONG AXTI DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which AXT, Inc. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which AXT, Inc. is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, AXTI is assigned to the semiconductor equipment and materials industry.

•Semiconductor Equipment & Materials Industry Risk. Companies in the semiconductor equipment and materials industry are subject to significant risks, including cyclicality in semiconductor capital spending, rapid technological change, and dependence on continued demand for advanced chip manufacturing. The industry may be adversely affected by supply chain disruptions, shortages of critical components and raw materials, and elevated research and development costs. In addition, semiconductor equipment and materials companies may face heightened regulatory, export control, and geopolitical risks, including restrictions on sales to certain countries or customers, which could reduce revenues and profitability. These factors may negatively affect the value of the fund’s investments and increase volatility.
T-REX 2X LONG AXTI DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG AXTI DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG AXTI DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with AXTI. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that AXTI value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the AXTI. Under such circumstances, the market for AXTI may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of AXTI and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for AXTI and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of AXTI and correlated derivative instruments.
T-REX 2X LONG AXTI DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with AXTI and may incur substantial losses. If there is a significant intra-day market event and/or AXTI experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG AXTI DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of AXTI does not provide leveraged exposure to AXTI and, as a result, if the Fund invests directly in common stock of AXTI to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG AXTI DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG AXTI DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would
be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG AXTI DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG AXTI DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG AXTI DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG AXTI DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG AXTI DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG AXTI DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG AXTI DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG AXTI DAILY TARGET ETF | Mid-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Mid-Capitalization Company Risk. Mid-capitalization companies may have limited financial resources, narrower product lines, and less diversified markets than larger, more established companies. While mid-cap companies often have
greater growth potential than large-cap firms, they may also be more sensitive to changing market conditions, competitive pressures, and economic downturns. Their securities may experience greater price volatility and may be less liquid than those of large-cap companies, which could affect their market value and investment returns.
T-REX 2X LONG AXTI DAILY TARGET ETF | AXTI Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
AXTI Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, AXTI faces risks unique to its operations, as a manufacturer of compound semiconductor substrates, including gallium arsenide, indium phosphide, and germanium materials used in wireless, fiber-optic, and optoelectronic applications. These risks include, among others, fluctuations in demand for compound semiconductor substrates, including customer spending cycles in wireless, fiber-optic communications, and other end markets; customer concentration risk, as a significant portion of revenues may be derived from a limited number of customers; manufacturing and yield risk, including the ability to maintain production efficiency, control defect rates, and achieve consistent crystal growth and wafer quality; pricing
pressure and competitive dynamics, including competition from global and low-cost suppliers; risks associated with the company’s vertically integrated supply chain, including ownership or control of raw material production; and risks related to its significant manufacturing and operational presence in China, including geopolitical tensions, trade restrictions, export controls, and regulatory uncertainties that may affect production, costs, or customer demand. The trading price of AXTI common stock may be volatile, particularly given its exposure to cyclical semiconductor end markets and global supply-demand dynamics, and AXTI’s business strategy and end-market exposure may evolve.
T-REX 2X LONG AXTI DAILY TARGET ETF | Industry Concentration Risk, Semiconductor Equipment & Materials Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Semiconductor Equipment & Materials Industry Risk. Companies in the semiconductor equipment and materials industry are subject to significant risks, including cyclicality in semiconductor capital spending, rapid technological change, and dependence on continued demand for advanced chip manufacturing. The industry may be adversely affected by supply chain disruptions, shortages of critical components and raw materials, and elevated research and development costs. In addition, semiconductor equipment and materials companies may face heightened regulatory, export control, and geopolitical risks, including restrictions on sales to certain countries or customers, which could reduce revenues and profitability. These factors may negatively affect the value of the fund’s investments and increase volatility.
T-REX 2X LONG AXTI DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG AXTI DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG BHP DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of BHP’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of BHP during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how BHP volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) BHP volatility; b) BHP performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to BHP. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of BHP volatility and BHP performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to BHP; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of BHP.
During periods of higher BHP volatility, the volatility of BHP may affect the Fund’s return as much as, or more than, the return of BHP. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of BHP during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if BHP provided no return over a one-year period during which BHP experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if BHP’s return is flat. For instance, if BHP’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of BHP and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of BHP. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

BHP’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 31.38%. BHP’s annualized daily volatility rates were as follows:
    
2021    32.99%
2022    40.17%
2023    28.45%
2024    25.15%
2025    28.05%

BHP’s annualized performance for the five-year period ended December 31, 2025 was 0.71%. Historical volatility and performance are not indications of what BHP volatility and performance will be in the future. BHP’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for BHP is $83.22 on March 2, 2026 and the 52-week low stock price for BHP is $45.74, which occurred on June 23, 2025. BHP’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG BHP DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of BHP will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in BHP, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if BHP subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if BHP does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with BHP and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade
at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG BHP DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG BHP DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG BHP DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG BHP DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG BHP DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of BHP, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG BHP DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to BHP that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG BHP DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of BHP at the market close on the first trading day and the value of BHP at the time of purchase. If BHP gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if BHP declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of BHP.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG BHP DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to BHP and therefore achieve its daily leveraged investment objective. The Fund’s exposure to BHP is impacted by BHP’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to BHP at the end of each day. The possibility of the Fund being materially over- or under-exposed to BHP increases on days when BHP is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) BHP. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with BHP. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to BHP. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of BHP. Any of these factors could decrease the correlation between the performance of the Fund and BHP and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG BHP DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG BHP DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. BHP Group Limited is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of BHP Group Limited and make no representation as to the performance of BHP. Investing in the Fund is not equivalent to investing in BHP. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to BHP.
T-REX 2X LONG BHP DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG BHP DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which BHP Group Limited is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which BHP Group Limited is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, BHP is assigned to the other industrial metals and mining industry.
•Other Industrial Metals and Mining Industry Risk. Industrial metals and mining companies can be significantly affected by fluctuations in global commodity prices, changes in industrial demand, geopolitical developments, environmental regulations, and operational risks inherent in mining activities. The market for products produced by industrial metals and mining companies is characterized by cyclical demand tied to construction, manufacturing, and infrastructure investment, as well as sensitivity to global economic growth and trade policies. The success of industrial metals and mining companies depends in substantial part on their ability to maintain efficient extraction and processing operations, manage production costs, secure access to high-quality mineral reserves, and comply with environmental and safety standards. An unexpected decline in demand from key end-use industries, increase in regulatory or energy costs, or disruption due to labor disputes, equipment failures, or natural events could have a material adverse effect on a participant’s operating results. Many industrial metals and mining companies rely on long-term contracts, stable government relations, and favorable logistics infrastructure to sustain operations. There can be no assurance that such conditions will continue or that competitors will not access comparable reserves or produce metals that are substantially equivalent or superior.
T-REX 2X LONG BHP DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG BHP DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG BHP DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with BHP. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that BHP value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in
the BHP. Under such circumstances, the market for BHP may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of BHP and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for BHP and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of BHP and correlated derivative instruments.
T-REX 2X LONG BHP DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with BHP and may incur substantial losses. If there is a significant intra-day market event and/or BHP experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG BHP DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of BHP does not provide leveraged exposure to BHP and, as a result, if the Fund invests directly in common stock of BHP to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG BHP DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG BHP DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG BHP DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG BHP DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG BHP DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG BHP DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG BHP DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG BHP DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG BHP DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG BHP DAILY TARGET ETF | Foreign Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Foreign Investing Risk. Securities issued by entities organized, domiciled, or with a principal executive office outside the United States may involve certain special risk considerations that are not typically associated with investing in securities of U.S. companies. World events could adversely affect the value and/or liquidity of securities of foreign companies or foreign issuers, potentially in ways that differ from impacts to U.S. companies or issuers. Further, global economies and financial markets are becoming increasingly interconnected, which increases the possibility that conditions in one country or region could adversely impact a different country or region. In addition, with respect to certain foreign countries, there is the possibility of expropriation or confiscatory taxation or other adverse tax consequences, political or social instability, changes to laws and regulations or interpretations of laws and regulations, war, terrorism, nationalization, limitations on the removal of funds or other assets, or diplomatic developments that could affect U.S. investments in those countries. Additionally, the imposition of sanctions, exchange controls (including repatriation restrictions), confiscations, trade restrictions (including tariffs) and other government restrictions on the United States by a foreign country, or on a foreign country or issuer by the United States could adversely affect the value of securities issued by a non-U.S. company. Because foreign issuers are not generally subject to uniform accounting, auditing, and financial reporting standards and practices comparable to those applicable to U.S. issuers, there may be less publicly
available information about certain foreign issuers than about U.S. issuers. The financial statements of the issuer of the Reference Asset are prepared in accordance with International Financial Reporting Standards (“IFRS”), as issued by the International Accounting Standards Board, which differs in certain respects from United States generally accepted accounting principles (“U.S. GAAP”) and practices prescribed by the SEC. Therefore, such financial statements may not be comparable to financial statements prepared in accordance with U.S. GAAP.
T-REX 2X LONG BHP DAILY TARGET ETF | Risk Of Investing In Depositary Receipts Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Risk of Investing in Depositary Receipts. ADRs involve risks not experienced when investing directly in the equity securities of an issuer. Changes in foreign currency exchange rates affect the value of ADRs and, therefore, may affect the value of the Fund. Although the ADRs in which the Fund invests will be listed on major U.S. exchanges, there can be no assurance that a market for these securities will be made or maintained or that any such market will be or remain liquid. There is also no guarantee that BHP Group will continue to sponsor the ADRs. As a result, the Fund may have difficulty finding suitable counterparties that are willing to enter into, or continue to enter into, transactions with the Fund or the costs to enter into the swaps that the Fund utilizes may increase significantly or, to the extent that the Fund invests directly in ADRs, the Fund may have difficulty selling the ADRs if it needs to do so, or selling them quickly and efficiently at the prices at which they have been valued. In such circumstances, the Fund may not be able to achieve its leveraged investment objective. The depositary bank may not have physical custody of the underlying securities at all times and may charge fees for various services, including forwarding dividends and interest, and processing corporate actions. The Fund would be expected to pay, directly or indirectly, a share of the additional fees, which it would not pay if investing directly in the foreign securities.
T-REX 2X LONG BHP DAILY TARGET ETF | BHP Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
BHP Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, BHP Group faces risks unique to its operations, as one of the world’s largest diversified natural resources companies, with significant exposure to iron ore, copper, metallurgical coal, and other commodities. These risks include, among others, commodity price volatility; changes in global demand, particularly from major industrial and infrastructure markets including China and other emerging economies; operational risks associated with large-scale mining and processing activities, including equipment failures, accidents, labor disruptions, and natural disasters; rising input costs, including energy, labor, transportation, and consumables; risks associated with operating in multiple international jurisdictions, including political, regulatory, tax, and legal uncertainties; and increasing environmental, social, and governance (“ESG”) requirements, including climate-related regulations, emissions reduction initiatives, and community relations obligations that may increase costs or limit operations. The trading price of BHP may be volatile, particularly given its sensitivity to global commodity cycles, large-scale capital projects, and changes in demand related to industrial activity and energy transition trends, and BHP Group’s business strategy, portfolio composition, and end-market exposure may evolve.
T-REX 2X LONG BHP DAILY TARGET ETF | Materials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Materials Sector Risk. The materials sector includes companies from the following industries: chemicals; metals & mining; paper & forest products; containers & packaging; and construction materials. Many companies in the materials sector are significantly affected by the level and volatility of commodity prices, the exchange value of the dollar, import controls, worldwide competition, environmental policies and consumer demand. At times, worldwide production of industrial materials has exceeded demand as a result of over-building or economic downturns, leading to poor investment returns or losses. Other risks may include liability for environmental damage and general civil liabilities, depletion of resources, and mandated expenditures for safety and pollution control. The materials sector may also be affected by economic cycles, technical progress, labor relations, and government regulations.
T-REX 2X LONG BHP DAILY TARGET ETF | Industry Concentration Risk, Other Industrial Metals And Mining Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Other Industrial Metals and Mining Industry Risk. Industrial metals and mining companies can be significantly affected by fluctuations in global commodity prices, changes in industrial demand, geopolitical developments, environmental regulations, and operational risks inherent in mining activities. The market for products produced by industrial metals and mining companies is characterized by cyclical demand tied to construction, manufacturing, and infrastructure investment, as well as sensitivity to global economic growth and trade policies. The success of industrial metals and mining companies depends in substantial part on their ability to maintain efficient extraction and processing operations, manage production costs, secure access to high-quality mineral reserves, and comply with environmental and safety standards. An unexpected decline in demand from key end-use industries, increase in regulatory or energy costs, or disruption due to labor disputes, equipment failures, or natural events could have a material adverse effect on a participant’s operating results. Many industrial metals and mining companies rely on long-term contracts, stable government relations, and favorable logistics infrastructure to sustain operations. There can be no assurance that such conditions will continue or that competitors will not access comparable reserves or produce metals that are substantially equivalent or superior.
T-REX 2X LONG BHP DAILY TARGET ETF | Mega-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Mega-Capitalization Company Risk. Investments in mega-capitalization companies may involve certain risks. Although mega-cap companies are typically well-established and may have significant financial resources, broad product lines, and diversified operations, they may be less able to adapt quickly to changing market conditions, technological innovations, or shifts in consumer preferences. As a result, mega-cap companies may experience slower growth rates compared to smaller companies.

In addition, mega-cap companies may be subject to increased regulatory scrutiny, global economic and geopolitical risks, and operational complexities associated with large-scale, multinational operations. Their size and market dominance may also make it more difficult to achieve significant growth, particularly during periods of economic expansion. While securities of mega-cap companies may be less volatile than those of smaller companies, they may underperform the broader market or other segments of the market, which could adversely affect the Fund’s investment returns.
T-REX 2X LONG BHP DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG BHP DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single
issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG COMP DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of COMP’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of COMP during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how COMP volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) COMP volatility; b) COMP performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to COMP. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of COMP volatility and COMP performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to COMP; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of COMP.

During periods of higher COMP volatility, the volatility of COMP may affect the Fund’s return as much as, or more than, the return of COMP. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of COMP during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if COMP provided no return over a one-year period during which COMP experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if COMP’s return is flat. For instance, if COMP’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of COMP and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of COMP. The table below is not a representation of the Fund’s actual
returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 

One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

COMP’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 79.31%. COMP’s annualized daily volatility rates were as follows:
    
2021    53.16%
2022    107.23%
2023    89.45%
2024    67.25%
2025    61.35%

COMP’s annualized performance for the five-year period ended December 31, 2025 was -10.59%. Historical volatility and performance are not indications of what COMP volatility and performance will be in the future. COMP’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for COMP is $13.96 on January 26, 2026 and the 52-week low stock price for COMP is $5.66, which occurred on May 22, 2025. COMP’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG COMP DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of COMP will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in COMP, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if COMP subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if COMP does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with COMP and may increase the volatility of the Fund.
To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG COMP DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.
T-REX 2X LONG COMP DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG COMP DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the
underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG COMP DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG COMP DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of COMP, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG COMP DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to COMP that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG COMP DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of COMP at the market close on the first trading day and the value of COMP at the time of purchase. If COMP gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if COMP declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of COMP.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience
significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG COMP DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to COMP and therefore achieve its daily leveraged investment objective. The Fund’s exposure to COMP is impacted by COMP’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to COMP at the end of each day. The possibility of the Fund being materially over- or under-exposed to COMP increases on days when COMP is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) COMP. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with COMP. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to COMP. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of COMP. Any of these factors could decrease the correlation between the performance of the Fund and COMP and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG COMP DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG COMP DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Compass, Inc. is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Compass, Inc. and make no representation as to the performance of COMP. Investing in the Fund is not equivalent to investing in COMP. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to COMP.
T-REX 2X LONG COMP DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG COMP DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Compass, Inc. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Compass, Inc.is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, COMP is assigned to the real estate services industry.

•Real Estate Services Industry Risk. The real estate services industry is highly sensitive to fluctuations in economic conditions, interest rates, and the availability of credit, all of which directly affect property sales, leasing activity, and valuations. Companies in this sector face risks from cyclical downturns in commercial and residential real estate markets, shifts in demand for office and retail space, and changing consumer and corporate preferences, including the rise of remote work and e-commerce. Competitive pressures, reliance on transaction volumes, and exposure to regulatory changes in zoning, lending, and environmental standards can materially affect revenues. In addition, geopolitical uncertainty, inflationary pressures, and disruptions in capital markets may reduce investment activity and overall market liquidity. These factors collectively may significantly impact the performance and profitability of businesses in the industry.
T-REX 2X LONG COMP DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG COMP DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG COMP DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy
or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with COMP. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that COMP value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the COMP. Under such circumstances, the market for COMP may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of COMP and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for COMP and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of COMP and correlated derivative instruments.
T-REX 2X LONG COMP DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with COMP and may incur substantial losses. If there is a significant intra-day market event and/or COMP experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG COMP DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of COMP does not provide leveraged exposure to COMP and, as a result, if the Fund invests directly in common stock of COMP to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG COMP DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG COMP DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG COMP DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block] ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:
T-REX 2X LONG COMP DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG COMP DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG COMP DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG COMP DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG COMP DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG COMP DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG COMP DAILY TARGET ETF | Mid-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Mid-Capitalization Company Risk. Mid-capitalization companies may have limited financial resources, narrower product lines, and less diversified markets than larger, more established companies. While mid-cap companies often have greater growth potential than large-cap firms, they may also be more sensitive to changing market conditions, competitive pressures, and economic downturns. Their securities may experience greater price volatility and may be less liquid than those of large-cap companies, which could affect their market value and investment returns.
T-REX 2X LONG COMP DAILY TARGET ETF | COMP Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
COMP Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, COMP faces risks unique to its operations, including as a residential real estate brokerage and technology platform, including declines in residential transaction volumes, home sales activity, or housing affordability; interest rate sensitivity, as higher mortgage rates may reduce buyer demand and market liquidity; competition in residential real estate brokerage, including from
technology-enabled platforms and alternative brokerage models; and agent recruitment and retention risk, since business performance depends on maintaining a competitive agent network of independent real estate agents and teams. The trading price of COMP common stock may be volatile, particularly given its sensitivity to housing market cycles, mortgage rate trends, integration risks associated with the merger, including the ability to realize anticipated synergies and retain agents and customers, and COMP’s business strategy and end-market exposure may evolve.
T-REX 2X LONG COMP DAILY TARGET ETF | Real Estate Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Real Estate Sector Risk. The real estate sector contains companies operating in real estate development and operation, as well as companies related to the real estate sector, including REITs. Investments in securities of these companies are subject to risks such as: fluctuations in the value of the underlying properties; defaults by borrowers or tenants; market saturation; changes in general and local economic conditions; decreases in market rates for rents; changes in the availability, cost and terms of mortgage funds; increased competition, property taxes, capital expenditures, or operating expenses; and other economic, political or regulatory occurrences, including the impact of changes in environmental laws. The real estate sector is particularly sensitive to economic downturns and changes to interest rates.
T-REX 2X LONG COMP DAILY TARGET ETF | Industry Concentration Risk, Real Estate Services Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Real Estate Services Industry Risk. The real estate services industry is highly sensitive to fluctuations in economic conditions, interest rates, and the availability of credit, all of which directly affect property sales, leasing activity, and valuations. Companies in this sector face risks from cyclical downturns in commercial and residential real estate markets, shifts in demand for office and retail space, and changing consumer and corporate preferences, including the rise of remote work and e-commerce. Competitive pressures, reliance on transaction volumes, and exposure to regulatory changes in zoning, lending, and environmental standards can materially affect revenues. In addition, geopolitical uncertainty, inflationary pressures, and disruptions in capital markets may reduce investment activity and overall market liquidity. These factors collectively may significantly impact the performance and profitability of businesses in the industry.
T-REX 2X LONG COMP DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG COMP DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG ERO DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of ERO’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of ERO during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how ERO volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) ERO volatility; b) ERO performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to ERO. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of ERO volatility and ERO performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to ERO; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of ERO.

During periods of higher ERO volatility, the volatility of ERO may affect the Fund’s return as much as, or more than, the return of ERO. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of ERO during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if ERO provided no return over a one-year period during which ERO experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if ERO’s return is flat. For instance, if ERO’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of ERO and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of ERO. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

ERO’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 53.55%. ERO’s annualized daily volatility rates were as follows:
    
2021    49.66%
2022    67.14%
2023    47.86%
2024    48.38%
2025    52.49%

ERO’s annualized performance for the five-year period ended December 31, 2025 was 11.76%. Historical volatility and performance are not indications of what ERO volatility and performance will be in the future. ERO’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for ERO is $39.80 on January 29, 2026 and the 52-week low stock price for ERO is $11.53, which occurred on April 23, 2025. ERO’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG ERO DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of ERO will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in ERO, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if ERO subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if ERO does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with ERO and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade
at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG ERO DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG ERO DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG ERO DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG ERO DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG ERO DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of ERO, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG ERO DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to ERO that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG ERO DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of ERO at the market close on the first trading day and the value of ERO at the time of purchase. If ERO gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if ERO declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of ERO.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG ERO DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to ERO and therefore achieve its daily leveraged investment objective. The Fund’s exposure to ERO is impacted by ERO’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to ERO at the end of each day. The possibility of the Fund being materially over- or under-exposed to ERO increases on days when ERO is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) ERO. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with ERO. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to ERO. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of ERO. Any of these factors could decrease the correlation between the performance of the Fund and ERO and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG ERO DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG ERO DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. ERO Copper Corp. is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of ERO Copper Corp. and make no representation as to the performance of ERO. Investing in the Fund is not equivalent to investing in ERO. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to ERO.
T-REX 2X LONG ERO DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG ERO DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which ERO Copper Corp. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which ERO Copper Corp. is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, ERO is assigned to the copper industry.

•Copper Industry Risk. Companies in the copper industry may be subject to significant risks, including commodity price volatility, changes in global economic conditions, and fluctuations in demand from key end markets such as construction, power generation, and industrial manufacturing. Copper producers and related companies may be adversely affected by operational and development risks, including permitting delays, labor disruptions, accidents, equipment failures, and cost inflation for energy, transportation, and other inputs. The industry may also face heightened environmental and regulatory risks, including stricter emissions standards and remediation requirements, which could increase costs or limit production. These factors may negatively impact the financial performance of copper-related investments and increase volatility in the fund’s returns.
T-REX 2X LONG ERO DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the
amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG ERO DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG ERO DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with ERO. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that ERO value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the ERO. Under such circumstances, the market for ERO may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of ERO and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for ERO and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of ERO and correlated derivative instruments.
T-REX 2X LONG ERO DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with ERO and may incur substantial losses. If there is a significant intra-day market event and/or ERO experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG ERO DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of ERO does not provide leveraged exposure to ERO and, as a result, if the Fund invests directly in common stock of ERO to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG ERO DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG ERO DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG ERO DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility.
This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG ERO DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG ERO DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG ERO DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG ERO DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG ERO DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG ERO DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG ERO DAILY TARGET ETF | Mid-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Mid-Capitalization Company Risk. Mid-capitalization companies may have limited financial resources, narrower product lines, and less diversified markets than larger, more established companies. While mid-cap companies often have greater growth potential than large-cap firms, they may also be more sensitive to changing market conditions, competitive pressures, and economic downturns. Their securities may experience greater price volatility and may be less liquid than those of large-cap companies, which could affect their market value and investment returns.
T-REX 2X LONG ERO DAILY TARGET ETF | Foreign Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Foreign Investing Risk. Securities issued by entities organized, domiciled, or with a principal executive office outside the United States may involve certain special risk considerations that are not typically associated with investing in securities of U.S. companies. World events could adversely affect the value and/or liquidity of securities of foreign companies or foreign issuers, potentially in ways that differ from impacts to U.S. companies or issuers. Further, global economies and financial markets are becoming increasingly interconnected, which increases the possibility that conditions in one country or region could adversely impact a different country or region. In addition, with respect to certain foreign countries, there is the possibility of expropriation or confiscatory taxation or other adverse tax consequences, political or social instability, changes to laws and regulations or interpretations of laws and regulations, war, terrorism, nationalization, limitations on the removal of funds or other assets, or diplomatic developments that could affect U.S. investments in those countries. Additionally, the imposition of sanctions, exchange controls (including repatriation restrictions), confiscations, trade restrictions (including tariffs) and other government restrictions on the United States by a foreign country, or on a foreign country or issuer by the United States could adversely affect the value of securities issued by a non-U.S. company. Because foreign issuers are not generally subject to uniform accounting, auditing, and financial reporting standards and practices comparable to those applicable to U.S. issuers, there may be less publicly
available information about certain foreign issuers than about U.S. issuers. The financial statements of the issuer of the Reference Asset are prepared in accordance with International Financial Reporting Standards (“IFRS”), as issued by the International Accounting Standards Board, which differs in certain respects from United States generally accepted accounting principles (“U.S. GAAP”) and practices prescribed by the SEC. Therefore, such financial statements may not be comparable to financial statements prepared in accordance with U.S. GAAP.
T-REX 2X LONG ERO DAILY TARGET ETF | Materials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Materials Sector Risk. The materials sector includes companies from the following industries: chemicals; metals & mining; paper & forest products; containers & packaging; and construction materials. Many companies in the materials sector are significantly affected by the level and volatility of commodity prices, the exchange value of the dollar, import controls, worldwide competition, environmental policies and consumer demand. At times, worldwide production of industrial materials has exceeded demand as a result of over-building or economic downturns, leading to poor investment returns or losses. Other risks may include liability for environmental damage and general civil liabilities, depletion of resources, and mandated expenditures for safety and pollution control. The materials sector may also be affected by economic cycles, technical progress, labor relations, and government regulations.
T-REX 2X LONG ERO DAILY TARGET ETF | ERO Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
ERO Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, ERO faces risks unique to its operations as a copper-focused mining company with primary operations in Brazil, including commodity price volatility, particularly fluctuations in copper prices; exploration and development risk, including uncertainty regarding the size, grade, and economic viability of mineral reserves and resources and the advancement of development-stage projects; mining and processing operational risks associated with underground mining activities, including equipment failures, geotechnical instability, water ingress, accidents, and production interruptions; and cost inflation, including increases in energy, labor, consumables, and transportation costs; and risks associated with operating in a concentrated geographic region, including political, regulatory, tax, environmental, and currency risks specific to Brazil. The trading price of ERO common stock may be volatile, particularly given its sensitivity to copper market conditions and project development timelines, and ERO’s business strategy and end-market exposure may evolve.
T-REX 2X LONG ERO DAILY TARGET ETF | Industry Concentration Risk, Copper Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Copper Industry Risk. Companies in the copper industry may be subject to significant risks, including commodity price volatility, changes in global economic conditions, and fluctuations in demand from key end markets such as construction, power generation, and industrial manufacturing. Copper producers and related companies may be adversely affected by operational and development risks, including permitting delays, labor disruptions, accidents, equipment failures, and cost inflation for energy, transportation, and other inputs. The industry may also face heightened environmental and regulatory risks, including stricter emissions standards and remediation requirements, which could increase costs or limit production. These factors may negatively impact the financial performance of copper-related investments and increase volatility in the fund’s returns.
T-REX 2X LONG ERO DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG ERO DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG FER DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of FER’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of FER during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how FER volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) FER volatility; b) FER performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to FER. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of FER volatility and FER performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to FER; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of FER.

During periods of higher FER volatility, the volatility of FER may affect the Fund’s return as much as, or more than, the return of FER. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of FER during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if FER provided no return over a one-year period during which FER experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if FER’s return is flat. For instance, if FER’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of FER and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of FER. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

FER’s annualized historical daily volatility rate for the three-year period ended December 31, 2025 was 36.40%. FER’s annualized daily volatility rates were as follows:
    
2023    134.99%
2024    34.17%
2025    23.70%

FER’s annualized performance for the three-year period ended December 31, 2025 was 31.36%. Historical volatility and performance are not indications of what FER volatility and performance will be in the future. FER’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for FER is $74.79 on February 27, 2026 and the 52-week low stock price for FER is $45.21, which occurred on April 23, 2025. FER’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG FER DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of FER will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in FER, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if FER subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if FER does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with FER and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example,
seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG FER DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other
recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG FER DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG FER DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other
recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG FER DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG FER DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of FER, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG FER DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to FER that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG FER DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of FER at the market close on the first trading day and the value of FER at the time of purchase. If FER gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if FER declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of FER.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG FER DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to FER and therefore achieve its daily leveraged investment objective. The Fund’s exposure to FER is impacted by FER’s movement. Because of
this, it is unlikely that the Fund will be perfectly exposed to FER at the end of each day. The possibility of the Fund being materially over- or under-exposed to FER increases on days when FER is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) FER. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with FER. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to FER. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of FER. Any of these factors could decrease the correlation between the performance of the Fund and FER and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG FER DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG FER DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Ferrovial SE is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Ferrovial SE and make no representation as to the performance of FER. Investing in the Fund is not equivalent to investing in FER. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to FER.
T-REX 2X LONG FER DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG FER DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Ferrovial SE is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Ferrovial SE is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, FER is assigned to the engineering and construction industry.

•Engineering & Construction Industry Risk. Companies in the engineering and construction industry may be subject to significant risks, including exposure to economic cycles, changing demand for infrastructure, commercial, and industrial projects, and variability in public and private sector spending. Industry participants may face project execution risks, such as cost overruns, delays, labor shortages, subcontractor performance issues, and supply chain disruptions, which could reduce profitability and impair cash flows. In addition, engineering and construction companies may be impacted by fixed-price contract risk, rising input costs, and heightened regulatory, environmental, and safety compliance requirements. These factors may increase earnings volatility and negatively affect the value of the fund’s investments.
T-REX 2X LONG FER DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG FER DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG FER DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with FER. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that FER value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the FER. Under such circumstances, the market for FER may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of FER and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for FER and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of FER and correlated derivative instruments.
T-REX 2X LONG FER DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with FER and may incur substantial losses. If there is a significant intra-day market event and/or FER experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG FER DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of FER does not provide leveraged exposure to FER and, as a result, if the Fund invests directly in common stock of FER to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG FER DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in
kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG FER DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG FER DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market
price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG FER DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG FER DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG FER DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG FER DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG FER DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG FER DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG FER DAILY TARGET ETF | Industrials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industrials Sector Risk. The Fund’s assets will be concentrated in the industrials sector, which means the Fund will be more affected by the performance of the industrials sector than a fund that is more diversified. Industrial companies are affected by supply and demand both for their specific product or service and for industrials sector products in general. Government regulation, world events, exchange rates and economic conditions, technological developments and liabilities for environmental damage and general civil liabilities will likewise affect the performance of these companies. Transportation securities, a component of the industrials sector, are cyclical and have occasional sharp price movements which may result from changes in the economy, fuel prices, labor agreements and insurance costs.
T-REX 2X LONG FER DAILY TARGET ETF | Foreign Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Foreign Investing Risk. Securities issued by entities organized, domiciled, or with a principal executive office outside the United States may involve certain special risk considerations that are not typically associated with investing in securities of U.S. companies. World events could adversely affect the value and/or liquidity of securities of foreign companies or foreign issuers, potentially in ways that differ from impacts to U.S. companies or issuers. Further, global economies and financial markets are becoming increasingly interconnected, which increases the possibility that conditions in one country or region could adversely impact a different country or region. In addition, with respect to certain foreign countries, there is the possibility of expropriation or confiscatory taxation or other adverse tax consequences, political or social instability, changes to laws and regulations or interpretations of laws and regulations, war, terrorism, nationalization, limitations on the removal of funds or other assets, or diplomatic developments that could affect U.S. investments in those countries. Additionally, the imposition of sanctions, exchange controls (including repatriation restrictions), confiscations, trade restrictions (including tariffs) and other government restrictions on the United States by a foreign country, or on a foreign country or issuer by the United States could adversely affect the value of securities issued by a non-U.S. company. Because foreign issuers are not generally subject to uniform accounting, auditing, and financial reporting standards and practices comparable to those applicable to U.S. issuers, there may be less publicly available information about certain foreign issuers than about U.S. issuers. The financial statements of the issuer of the Reference Asset are prepared in accordance with International Financial Reporting Standards (“IFRS”), as issued by the
International Accounting Standards Board, which differs in certain respects from United States generally accepted accounting principles (“U.S. GAAP”) and practices prescribed by the SEC. Therefore, such financial statements may not be comparable to financial statements prepared in accordance with U.S. GAAP.
T-REX 2X LONG FER DAILY TARGET ETF | FER Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FER Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, FER faces risks unique to its operations, including as a global infrastructure developer and operator with significant investments in toll roads and airport assets, including project execution, cost overruns, delays, and performance guarantees; traffic and volume risk for concession assets (including toll roads and airports), which may be sensitive to economic conditions, fuel costs, travel demand, and consumer behavior; as well as regional mobility patterns and infrastructure usage trends; and contracting, counterparty, and concession renewal risks, including the risk that government entities or counterparties may modify contract terms or fail to meet obligations, particularly in jurisdictions where long-term public-private partnership agreements are utilized. The trading price of FER common stock may be volatile, particularly given its exposure to long-duration infrastructure assets, interest rate changes, and macroeconomic conditions affecting transportation demand, and FER’s business strategy and end-market exposure may evolve.
T-REX 2X LONG FER DAILY TARGET ETF | Industry Concentration Risk, Engineering & Construction Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Engineering & Construction Industry Risk. Companies in the engineering and construction industry may be subject to significant risks, including exposure to economic cycles, changing demand for infrastructure, commercial, and industrial projects, and variability in public and private sector spending. Industry participants may face project execution risks, such as cost overruns, delays, labor shortages, subcontractor performance issues, and supply chain disruptions, which could reduce profitability and impair cash flows. In addition, engineering and construction companies may be impacted by fixed-price contract risk, rising input costs, and heightened regulatory, environmental, and safety compliance requirements. These factors may increase earnings volatility and negatively affect the value of the fund’s investments.
T-REX 2X LONG FER DAILY TARGET ETF | Large-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Large-Capitalization Company Risk. Large-capitalization companies typically have significant financial resources, extensive product lines and broad markets for their goods and/or services. However, they may be less able to adapt to changing market conditions or to respond quickly to competitive challenges or to changes in business, product, financial, or market conditions and may not be able to maintain growth at rates that may be achieved by well-managed smaller and mid-size companies, which may affect the companies’ returns.
T-REX 2X LONG FER DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG FER DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG HBM DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of HBM’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of HBM during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how HBM volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) HBM volatility; b) HBM performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to HBM. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of HBM volatility and HBM performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to HBM; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of HBM.

During periods of higher HBM volatility, the volatility of HBM may affect the Fund’s return as much as, or more than, the return of HBM. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of HBM during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if HBM provided no return over a one-year period during which HBM experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if HBM’s return is flat. For instance, if HBM’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of HBM and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of HBM. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

HBM’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 55.40%. HBM’s annualized daily volatility rates were as follows:
    
2021    59.34%
2022    66.73%
2023    48.73%
2024    46.68%
2025    53.21%

HBM’s annualized performance for the five-year period ended December 31, 2025 was 23.16%. Historical volatility and performance are not indications of what HBM volatility and performance will be in the future. HBM’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for HBM is $28.74 on January 29, 2026 and the 52-week low stock price for HBM is $6.98, which occurred on April 30, 2025. HBM’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG HBM DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of HBM will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in HBM, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if HBM subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if HBM does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with HBM and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade
at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG HBM DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG HBM DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG HBM DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG HBM DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG HBM DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of HBM, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG HBM DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to HBM that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG HBM DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of HBM at the market close on the first trading day and the value of HBM at the time of purchase. If HBM gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if HBM declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of HBM.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG HBM DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to HBM and therefore achieve its daily leveraged investment objective. The Fund’s exposure to HBM is impacted by HBM’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to HBM at the end of each day. The possibility of the Fund being materially over- or under-exposed to HBM increases on days when HBM is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) HBM. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with HBM. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to HBM. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of HBM. Any of these factors could decrease the correlation between the performance of the Fund and HBM and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG HBM DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG HBM DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Hudbay Minerals Inc. is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Hudbay Minerals Inc. and make no representation as to the performance of HBM. Investing in the Fund is not equivalent to investing in HBM. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to HBM.
T-REX 2X LONG HBM DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG HBM DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Hudbay Minerals Inc. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Hudbay Minerals Inc. is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, HBM is assigned to the copper industry.

•Copper Industry Risk. Companies in the copper industry may be subject to significant risks, including commodity price volatility, changes in global economic conditions, and fluctuations in demand from key end markets such as construction, power generation, and industrial manufacturing. Copper producers and related companies may be adversely affected by operational and development risks, including permitting delays, labor disruptions, accidents, equipment failures, and cost inflation for energy, transportation, and other inputs. The industry may also face heightened environmental and regulatory risks, including stricter emissions standards and remediation requirements, which could increase costs or limit production. These factors may negatively impact the financial performance of copper-related investments and increase volatility in the fund’s returns.
T-REX 2X LONG HBM DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation
held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG HBM DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG HBM DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with HBM. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that HBM value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the HBM. Under such circumstances, the market for HBM may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of HBM and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for HBM and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of HBM and correlated derivative instruments.
T-REX 2X LONG HBM DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with HBM and may incur substantial losses. If there is a significant intra-day market event and/or HBM experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG HBM DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of HBM does not provide leveraged exposure to HBM and, as a result, if the Fund invests directly in common stock of HBM to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG HBM DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG HBM DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG HBM DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility.
This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG HBM DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG HBM DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG HBM DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG HBM DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG HBM DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG HBM DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG HBM DAILY TARGET ETF | Mid-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Mid-Capitalization Company Risk. Mid-capitalization companies may have limited financial resources, narrower product lines, and less diversified markets than larger, more established companies. While mid-cap companies often have greater growth potential than large-cap firms, they may also be more sensitive to changing market conditions, competitive pressures, and economic downturns. Their securities may experience greater price volatility and may be less liquid than those of large-cap companies, which could affect their market value and investment returns.
T-REX 2X LONG HBM DAILY TARGET ETF | Foreign Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Foreign Investing Risk. Securities issued by entities organized, domiciled, or with a principal executive office outside the United States may involve certain special risk considerations that are not typically associated with investing in securities of U.S. companies. World events could adversely affect the value and/or liquidity of securities of foreign companies or foreign issuers, potentially in ways that differ from impacts to U.S. companies or issuers. Further, global economies and financial markets are becoming increasingly interconnected, which increases the possibility that conditions in one country or region could adversely impact a different country or region. In addition, with respect to certain foreign countries, there is the possibility of expropriation or confiscatory taxation or other adverse tax consequences, political or social instability, changes to laws and regulations or interpretations of laws and regulations, war, terrorism, nationalization, limitations on the removal of funds or other assets, or diplomatic developments that could affect U.S. investments in those countries. Additionally, the imposition of sanctions, exchange controls (including repatriation restrictions), confiscations, trade restrictions (including tariffs) and other government restrictions on the United States by a foreign country, or on a foreign country or issuer by the United States could adversely affect the value of securities issued by a non-U.S. company. Because foreign issuers are not generally subject to uniform accounting, auditing, and financial reporting standards and practices comparable to those applicable to U.S. issuers, there may be less publicly
available information about certain foreign issuers than about U.S. issuers. The financial statements of the issuer of the Reference Asset are prepared in accordance with International Financial Reporting Standards (“IFRS”), as issued by the International Accounting Standards Board, which differs in certain respects from United States generally accepted accounting principles (“U.S. GAAP”) and practices prescribed by the SEC. Therefore, such financial statements may not be comparable to financial statements prepared in accordance with U.S. GAAP.
T-REX 2X LONG HBM DAILY TARGET ETF | Materials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Materials Sector Risk. The materials sector includes companies from the following industries: chemicals; metals & mining; paper & forest products; containers & packaging; and construction materials. Many companies in the materials sector are significantly affected by the level and volatility of commodity prices, the exchange value of the dollar, import controls, worldwide competition, environmental policies and consumer demand. At times, worldwide production of industrial materials has exceeded demand as a result of over-building or economic downturns, leading to poor investment returns or losses. Other risks may include liability for environmental damage and general civil liabilities, depletion of resources, and mandated expenditures for safety and pollution control. The materials sector may also be affected by economic cycles, technical progress, labor relations, and government regulations.
T-REX 2X LONG HBM DAILY TARGET ETF | Industry Concentration Risk, Copper Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Copper Industry Risk. Companies in the copper industry may be subject to significant risks, including commodity price volatility, changes in global economic conditions, and fluctuations in demand from key end markets such as construction, power generation, and industrial manufacturing. Copper producers and related companies may be adversely affected by operational and development risks, including permitting delays, labor disruptions, accidents, equipment failures, and cost inflation for energy, transportation, and other inputs. The industry may also face heightened environmental and regulatory risks, including stricter emissions standards and remediation requirements, which could increase costs or limit production. These factors may negatively impact the financial performance of copper-related investments and increase volatility in the fund’s returns.
T-REX 2X LONG HBM DAILY TARGET ETF | HBM Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
HBM Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, HBM faces risks unique to its operations, including as a diversified mining company with operations in North and South America, including commodity price volatility, particularly fluctuations in copper and gold prices; as well as exposure to zinc and other by-product metals; mining and processing operational risks, including equipment failures, accidents, geotechnical issues, and production interruptions particularly in open-pit and underground mining environments; reserve and resource estimation risk, including uncertainty regarding the quantity, grade, and economic recoverability of mineral deposits; and cost inflation, including increases in labor, energy, consumables, and transportation costs, , as well as risks associated with operating in multiple jurisdictions, including political, regulatory, environmental, and community relations challenges. The trading price of HBM common stock may be volatile, particularly given its sensitivity to commodity price cycles, production levels, and regional operating conditions, and HBM’s business strategy and end-market exposure may evolve.
T-REX 2X LONG HBM DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG HBM DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG NU DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of NU’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of NU during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how NU volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) NU volatility; b) NU performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to NU. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of NU volatility and NU performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to NU; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of NU.

During periods of higher NU volatility, the volatility of NU may affect the Fund’s return as much as, or more than, the return of NU. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of NU during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if NU provided no return over a one-year period during which NU experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if NU’s return is flat. For instance, if NU’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of NU and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of NU. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

NU’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 60.30%. NU’s annualized daily volatility rates were as follows:
    
2021    111.87%
2022    93.10%
2023    42.26%
2024    39.99%
2025    44.45%

NU’s annualized performance for the five-year period ended December 31, 2025 was 16.49%. Historical volatility and performance are not indications of what NU volatility and performance will be in the future. NU’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for NU is $18.98 on January 29, 2026 and the 52-week low stock price for NU is $11.43, which occurred on April 23, 2025. NU’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG NU DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of NU will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in NU, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if NU subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if NU does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with NU and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade
at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG NU DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG NU DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG NU DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG NU DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG NU DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of NU, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG NU DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to NU that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG NU DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of NU at the market close on the first trading day and the value of NU at the time of purchase. If NU gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if NU declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of NU.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG NU DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to NU and therefore achieve its daily leveraged investment objective. The Fund’s exposure to NU is impacted by NU’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to NU at the end of each day. The possibility of the Fund being materially over- or under-exposed to NU increases on days when NU is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) NU. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with NU. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to NU. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of NU. Any of these factors could decrease the correlation between the performance of the Fund and NU and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG NU DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG NU DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. NU Holdings Ltd. is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of NU Holdings Ltd. and make no representation as to the performance of NU. Investing in the Fund is not equivalent to investing in NU. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to NU.
T-REX 2X LONG NU DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG NU DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which NU Holdings Ltd. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which NU Holdings Ltd. is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, NU is assigned to the banks - regional industry.

•Banking Companies Risk. The performance of bank stocks may be affected by extensive governmental regulation, which may limit both the amounts and types of loans and other financial commitments they can make, and the interest rates and fees they can charge and the amount of capital they must maintain. Profitability is largely dependent on the availability and cost of capital funds, and can fluctuate significantly when interest rates change. Credit losses resulting from financial difficulties of borrowers can negatively impact banking companies. Banks may also be subject to severe price competition. Competition is high among banking companies and failure to maintain or increase market share may result in lost market value.

•Regional Bank Risk. Investments in regional banks, which may be small or medium in size, may involve greater risk than investing in larger, more established banks. Securities of regional banks are often less liquid and subject to greater volatility and less trading volume than is customarily associated with securities of larger banks. A regional bank’s financial performance may be dependent upon the business environment in certain geographic regions of the United States and, as a result, adverse economic or employment developments in such regions may negatively impact such regional bank and, in turn, the Fund.
T-REX 2X LONG NU DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit
risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG NU DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG NU DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with NU. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that NU value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the NU. Under such circumstances, the market for NU may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of NU and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for NU and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of NU and correlated derivative instruments.
T-REX 2X LONG NU DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with NU and may incur substantial losses. If there is a significant intra-day market event and/or NU experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG NU DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of NU does not provide leveraged exposure to NU and, as a result, if the Fund invests directly in common stock of NU to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG NU DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG NU DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG NU DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less
than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG NU DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG NU DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG NU DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG NU DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG NU DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG NU DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG NU DAILY TARGET ETF | Foreign Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Foreign Investing Risk. Securities issued by entities organized, domiciled, or with a principal executive office outside the United States may involve certain special risk considerations that are not typically associated with investing in securities of U.S. companies. World events could adversely affect the value and/or liquidity of securities of foreign companies or foreign issuers, potentially in ways that differ from impacts to U.S. companies or issuers. Further, global economies and financial markets are becoming increasingly interconnected, which increases the possibility that conditions in one country or region could adversely impact a different country or region. In addition, with respect to certain foreign countries, there is the possibility of expropriation or confiscatory taxation or other adverse tax consequences, political or social instability, changes to laws and regulations or interpretations of laws and regulations, war, terrorism, nationalization, limitations on the removal of funds or other assets, or diplomatic developments that could affect U.S. investments in those countries. Additionally, the imposition of sanctions, exchange controls (including repatriation restrictions), confiscations, trade restrictions (including tariffs) and other government restrictions on the United States by a foreign country, or on a foreign country or issuer by the United States could adversely affect the value of securities issued by a non-U.S. company. Because foreign issuers are not generally subject to uniform accounting, auditing, and financial reporting standards and practices comparable to those applicable to U.S. issuers, there may be less publicly
available information about certain foreign issuers than about U.S. issuers. The financial statements of the issuer of the Reference Asset are prepared in accordance with International Financial Reporting Standards (“IFRS”), as issued by the International Accounting Standards Board, which differs in certain respects from United States generally accepted accounting principles (“U.S. GAAP”) and practices prescribed by the SEC. Therefore, such financial statements may not be comparable to financial statements prepared in accordance with U.S. GAAP.
T-REX 2X LONG NU DAILY TARGET ETF | Large-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Large-Capitalization Company Risk. Large-capitalization companies typically have significant financial resources, extensive product lines and broad markets for their goods and/or services. However, they may be less able to adapt to changing market conditions or to respond quickly to competitive challenges or to changes in business, product, financial, or market conditions and may not be able to maintain growth at rates that may be achieved by well-managed smaller and mid-size companies, which may affect the companies’ returns.
T-REX 2X LONG NU DAILY TARGET ETF | NU Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
NU Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, NU faces risks unique to its operations, including as a digital banking and financial services platform primarily operating in Latin America, including credit quality and loan performance, including the risk of higher delinquencies, charge-offs, or provisioning expense during economic downturns; interest rate risk, including the impact of rising funding costs or changes in net interest margins; and dependence on continued customer growth and engagement to sustain revenue expansion and profitability, particularly in rapidly evolving and competitive fintech markets. The trading price of NU common stock may be volatile, particularly given its exposure to macroeconomic conditions, regulatory environments, and currency fluctuations in its core markets, and NU’s business strategy and end-market exposure may evolve.
T-REX 2X LONG NU DAILY TARGET ETF | Financial Services Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Financial Services Sector Risk. The Fund may be susceptible to adverse economic or regulatory occurrences affecting the financial services sector, including with respect to U.S. and foreign banks, broker-dealers, insurance companies, finance companies (e.g., automobile finance) and related asset-backed securities. These developments may affect the value of the Fund’s investments more than if the Fund were not invested to such a degree in this sector. Companies in the financial services sector may be particularly susceptible to factors such as interest rate, fiscal, regulatory and monetary policy changes.
T-REX 2X LONG NU DAILY TARGET ETF | Industry Concentration Risk, Banking Companies Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
•Banking Companies Risk. The performance of bank stocks may be affected by extensive governmental regulation, which may limit both the amounts and types of loans and other financial commitments they can make, and the interest rates and fees they can charge and the amount of capital they must maintain. Profitability is largely dependent on the availability and cost of capital funds, and can fluctuate significantly when interest rates change. Credit losses resulting from financial difficulties of borrowers can negatively impact banking companies. Banks may also be subject to severe price competition. Competition is high among banking companies and failure to maintain or increase market share may result in lost market value.
T-REX 2X LONG NU DAILY TARGET ETF | Industry Concentration Risk, Regional Bank Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
•Regional Bank Risk. Investments in regional banks, which may be small or medium in size, may involve greater risk than investing in larger, more established banks. Securities of regional banks are often less liquid and subject to greater volatility and less trading volume than is customarily associated with securities of larger banks. A regional bank’s financial performance may be dependent upon the business environment in certain geographic regions of the United States and, as a result, adverse economic or employment developments in such regions may negatively impact such regional bank and, in turn, the Fund.
T-REX 2X LONG NU DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG NU DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG RCT DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of RCT’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of RCT during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how RCT volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) RCT volatility; b) RCT performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to RCT. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of RCT volatility and RCT performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to RCT; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of RCT.

During periods of higher RCT volatility, the volatility of RCT may affect the Fund’s return as much as, or more than, the return of RCT. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of RCT during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if RCT provided no return over a one-year period during which RCT experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if RCT’s return is flat. For instance, if RCT’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of RCT and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of RCT. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

RCT’s annualized historical daily volatility rate for the one-year period ended December 31, 2025 was 211.04%. RCT’s annualized daily volatility rates were as follows:
    
2025    211.04%

RCT’s annualized performance for the one-year period ended December 31, 2025 was -75.60%. Historical volatility and performance are not indications of what RCT volatility and performance will be in the future. RCT’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for RCT is $5.36 on July 1, 2025 and the 52-week low stock price for RCT is $0.56, which occurred on April 10, 2026. RCT’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG RCT DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of RCT will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in RCT, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if RCT subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if RCT does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with RCT and may increase the volatility of the Fund.
To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG RCT DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an
exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG RCT DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG RCT DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG RCT DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an
exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG RCT DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of RCT, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG RCT DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to RCT that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG RCT DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of RCT at the market close on the first trading day and the value of RCT at the time of purchase. If RCT gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if RCT declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of RCT.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG RCT DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to RCT and therefore achieve its daily leveraged investment objective. The Fund’s exposure to RCT is impacted by RCT’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to RCT at the end of each day. The possibility of the Fund being materially over- or under-exposed to RCT increases on days when RCT is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) RCT. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s
desired correlation with RCT. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to RCT. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of RCT. Any of these factors could decrease the correlation between the performance of the Fund and RCT and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG RCT DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG RCT DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Redcloud Holdings PLC is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Redcloud Holdings PLC and make no representation as to the performance of RCT. Investing in the Fund is not equivalent to investing in RCT. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to RCT.
T-REX 2X LONG RCT DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile
T-REX 2X LONG RCT DAILY TARGET ETF | Technology Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Technology Sector Risk. The market prices of technology-related securities tend to exhibit a greater degree of market risk and sharp price fluctuations than other types of securities. These securities may fall in and out of favor with investors rapidly, which may cause sudden selling and dramatically lower market prices. Technology securities also may be affected adversely by changes in technology, consumer and business purchasing patterns, government regulation and/or obsolete products or services. In addition, a rising interest rate environment tends to negatively affect technology companies. Technology companies having high market valuations may appear less attractive to investors, which may cause sharp decreases in their market prices. Further, those technology companies seeking to finance expansion would have increased borrowing costs, which may negatively impact earnings.
T-REX 2X LONG RCT DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Redcloud Holdings PLC is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Redcloud Holdings PLC is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, RCT is assigned to the software industry.

•Computer Software Industry Risk. Computer software companies can be significantly affected by competitive pressures, aggressive pricing, technological developments, changing domestic demand, the ability to attract and retain skilled employees and availability and price of components. The market for products produced by computer software companies is characterized by rapidly changing technology, rapid product obsolescence, cyclical market patterns, evolving industry standards and frequent new product introductions. The success of computer software companies depends in substantial part on the timely and successful introduction of new products and the ability to service such products. An unexpected change in one or more of the technologies affecting an issuer’s products or in the market for products based on a particular technology could have a material adverse effect on a participant’s operating results. Many computer software companies rely on a combination of patents, copyrights, trademarks, and trade secret laws to establish and protect their proprietary rights in their products and technologies. There can be no assurance that the steps taken by computer software companies to protect their proprietary rights will be adequate to prevent misappropriation of their technology or that competitors will not independently develop technologies that are substantially equivalent or superior to such companies’ technology.
T-REX 2X LONG RCT DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG RCT DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG RCT DAILY TARGET ETF | Micro-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Micro-Capitalization Company Risk. Micro-capitalization companies generally have extremely limited financial, managerial, and operational resources, narrow product lines or services, and limited operating histories. These companies may be highly dependent on a small number of products, customers, or key personnel and may have limited access to capital markets or financing on favorable terms. As a result, micro-cap companies may be particularly vulnerable to adverse business, economic, or market developments, and their securities may experience substantial price volatility, low trading volumes, and reduced liquidity. These factors may make it difficult to buy or sell shares at desired prices and may increase the risk of significant losses.
T-REX 2X LONG RCT DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with RCT. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that RCT value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the RCT. Under such circumstances, the market for RCT may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of RCT and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for RCT and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of RCT and correlated derivative instruments.
T-REX 2X LONG RCT DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with RCT and may incur substantial losses. If there is a significant intra-day market event and/or RCT experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG RCT DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of RCT does not provide leveraged exposure to RCT and, as a result, if the Fund invests directly in common stock of RCT to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG RCT DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG RCT DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG RCT DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG RCT DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG RCT DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG RCT DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG RCT DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG RCT DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG RCT DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG RCT DAILY TARGET ETF | Foreign Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Investing Risk. Securities issued by entities organized, domiciled, or with a principal executive office outside the United States may involve certain special risk considerations that are not typically associated with investing in securities of U.S. companies. World events could adversely affect the value and/or liquidity of securities of foreign companies or foreign issuers, potentially in ways that differ from impacts to U.S. companies or issuers. Further, global economies and financial markets are becoming increasingly interconnected, which increases the possibility that conditions in one country or region could adversely impact a different country or region. In addition, with respect to certain foreign countries, there is the possibility of expropriation or confiscatory taxation or other adverse tax consequences, political or social instability, changes to laws and regulations or interpretations of laws and regulations, war, terrorism, nationalization, limitations on the removal of funds or other assets, or diplomatic developments that could affect U.S. investments in those countries. Additionally, the imposition of sanctions, exchange controls (including repatriation restrictions), confiscations, trade restrictions (including tariffs) and other government restrictions on the United States by a foreign country, or on a foreign country or issuer by the United States could adversely affect the value of securities issued by a non-U.S. company.
T-REX 2X LONG RCT DAILY TARGET ETF | RCT Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
RCT Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally, and the value of an individual security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, RCT faces risks unique to its operations as a cloud-based business-to-business commerce platform provider, including focused on facilitating the distribution of fast-moving consumer goods across supply chains, including dependence on the continued performance, reliability, security, and adoption of its technology platform by retailers, distributors, and brands in emerging markets; risks associated with data-driven and artificial intelligence-enabled tools used to inform purchasing and inventory decisions; system outages, software defects, cyber-attacks, and data breaches; risks related to its digital financial solutions and e-wallet services, including regulatory, compliance, fraud, and third-party dependency risks associated with localized payment networks and financial partners; and risks arising from operating in multiple international markets, including adverse economic, political, regulatory, and currency developments, particularly in emerging markets where infrastructure, legal systems, and financial networks may be less developed. The trading price of RCT’s common stock may be volatile, particularly
given its limited operating history, evolving platform adoption, and exposure to emerging market conditions, and RCT’s business strategy and end-market exposure may evolve.
T-REX 2X LONG RCT DAILY TARGET ETF | Industry Concentration Risk, Computer Software Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Computer Software Industry Risk. Computer software companies can be significantly affected by competitive pressures, aggressive pricing, technological developments, changing domestic demand, the ability to attract and retain skilled employees and availability and price of components. The market for products produced by computer software companies is characterized by rapidly changing technology, rapid product obsolescence, cyclical market patterns, evolving industry standards and frequent new product introductions. The success of computer software companies depends in substantial part on the timely and successful introduction of new products and the ability to service such products. An unexpected change in one or more of the technologies affecting an issuer’s products or in the market for products based on a particular technology could have a material adverse effect on a participant’s operating results. Many computer software companies rely on a combination of patents, copyrights, trademarks, and trade secret laws to establish and protect their proprietary rights in their products and technologies. There can be no assurance that the steps taken by computer software companies to protect their proprietary rights will be adequate to prevent misappropriation of their technology or that competitors will not independently develop technologies that are substantially equivalent or superior to such companies’ technology.
T-REX 2X LONG RCT DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG RCT DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG RIO DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of RIO’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of RIO during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how RIO volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) RIO volatility; b) RIO performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to RIO. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of RIO volatility and RIO performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to RIO; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of RIO.

During periods of higher RIO volatility, the volatility of RIO may affect the Fund’s return as much as, or more than, the return of RIO. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of RIO during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if RIO provided no return over a one-year period during which RIO experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if RIO’s return is flat. For instance, if RIO’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of RIO and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of RIO. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

RIO’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 29.58%. RIO’s annualized daily volatility rates were as follows:
    
2021    33.16%
2022    37.50%
2023    27.49%
2024    23.04%
2025    24.28%

RIO’s annualized performance for the five-year period ended December 31, 2025 was 1.25%. Historical volatility and performance are not indications of what RIO volatility and performance will be in the future. RIO’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for RIO is $101.53 on February 25, 2026 and the 52-week low stock price for RIO is $55.64, which occurred on June 23, 2025. RIO’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG RIO DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of RIO will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in RIO, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if RIO subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if RIO does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with RIO and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade
at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG RIO DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG RIO DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG RIO DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG RIO DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG RIO DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of RIO, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG RIO DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to RIO that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG RIO DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of RIO at the market close on the first trading day and the value of RIO at the time of purchase. If RIO gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if RIO declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of RIO.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG RIO DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to RIO and therefore achieve its daily leveraged investment objective. The Fund’s exposure to RIO is impacted by RIO’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to RIO at the end of each day. The possibility of the Fund being materially over- or under-exposed to RIO increases on days when RIO is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) RIO. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with RIO. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to RIO. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of RIO. Any of these factors could decrease the correlation between the performance of the Fund and RIO and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG RIO DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG RIO DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Rio Tinto plc is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Rio Tinto plc and make no representation as to the performance of RIO. Investing in the Fund is not equivalent to investing in RIO. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to RIO.
T-REX 2X LONG RIO DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG RIO DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Rio Tinto plc is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Rio Tinto plc is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, RIO is assigned to the other industrial metals and mining industry.
•Other Industrial Metals and Mining Industry Risk. Industrial metals and mining companies can be significantly affected by fluctuations in global commodity prices, changes in industrial demand, geopolitical developments, environmental regulations, and operational risks inherent in mining activities. The market for products produced by industrial metals and mining companies is characterized by cyclical demand tied to construction, manufacturing, and infrastructure investment, as well as sensitivity to global economic growth and trade policies. The success of industrial metals and mining companies depends in substantial part on their ability to maintain efficient extraction and processing operations, manage production costs, secure access to high-quality mineral reserves, and comply with environmental and safety standards. An unexpected decline in demand from key end-use industries, increase in regulatory or energy costs, or disruption due to labor disputes, equipment failures, or natural events could have a material adverse effect on a participant’s operating results. Many industrial metals and mining companies rely on long-term contracts, stable government relations, and favorable logistics infrastructure to sustain operations. There can be no assurance that such conditions will continue or that competitors will not access comparable reserves or produce metals that are substantially equivalent or superior.
T-REX 2X LONG RIO DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG RIO DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG RIO DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with RIO. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that RIO value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in
the RIO. Under such circumstances, the market for RIO may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of RIO and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for RIO and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of RIO and correlated derivative instruments.
T-REX 2X LONG RIO DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with RIO and may incur substantial losses. If there is a significant intra-day market event and/or RIO experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG RIO DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of RIO does not provide leveraged exposure to RIO and, as a result, if the Fund invests directly in common stock of RIO to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG RIO DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG RIO DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG RIO DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG RIO DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG RIO DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG RIO DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG RIO DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG RIO DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG RIO DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG RIO DAILY TARGET ETF | Foreign Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Foreign Investing Risk. Securities issued by entities organized, domiciled, or with a principal executive office outside the United States may involve certain special risk considerations that are not typically associated with investing in securities of U.S. companies. World events could adversely affect the value and/or liquidity of securities of foreign companies or foreign issuers, potentially in ways that differ from impacts to U.S. companies or issuers. Further, global economies and financial markets are becoming increasingly interconnected, which increases the possibility that conditions in one country or region could adversely impact a different country or region. In addition, with respect to certain foreign countries, there is the possibility of expropriation or confiscatory taxation or other adverse tax consequences, political or social instability, changes to laws and regulations or interpretations of laws and regulations, war, terrorism, nationalization, limitations on the removal of funds or other assets, or diplomatic developments that could affect U.S. investments in those countries. Additionally, the imposition of sanctions, exchange controls (including repatriation restrictions), confiscations, trade restrictions (including tariffs) and other government restrictions on the United States by a foreign country, or on a foreign country or issuer by the United States could adversely affect the value of securities issued by a non-U.S. company. Because foreign issuers are not generally subject to uniform accounting, auditing, and financial reporting standards and practices comparable to those applicable to U.S. issuers, there may be less publicly
available information about certain foreign issuers than about U.S. issuers. The financial statements of the issuer of the Reference Asset are prepared in accordance with International Financial Reporting Standards (“IFRS”), as issued by the International Accounting Standards Board, which differs in certain respects from United States generally accepted accounting principles (“U.S. GAAP”) and practices prescribed by the SEC. Therefore, such financial statements may not be comparable to financial statements prepared in accordance with U.S. GAAP.
T-REX 2X LONG RIO DAILY TARGET ETF | Risk Of Investing In Depositary Receipts Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Risk of Investing in Depositary Receipts. ADRs involve risks not experienced when investing directly in the equity securities of an issuer. Changes in foreign currency exchange rates affect the value of ADRs and, therefore, may affect the value of the Fund. Although the ADRs in which the Fund invests will be listed on major U.S. exchanges, there can be no assurance that a market for these securities will be made or maintained or that any such market will be or remain liquid. There is also no guarantee that Rio Tinto plc will continue to sponsor the ADRs. As a result, the Fund may have difficulty finding suitable counterparties that are willing to enter into, or continue to enter into, transactions with the Fund or the costs to enter into the swaps that the Fund utilizes may increase significantly or, to the extent that the Fund invests directly in ADRs, the Fund may have difficulty selling the ADRs if it needs to do so, or selling them quickly and efficiently at the prices at which they have been valued. In such circumstances, the Fund may not be able to achieve its leveraged investment objective. The depositary bank may not have physical custody of the underlying securities at all times and may charge fees for various services, including forwarding dividends and interest, and processing corporate actions. The Fund would be expected to pay, directly or indirectly, a share of the additional fees, which it would not pay if investing directly in the foreign securities.
T-REX 2X LONG RIO DAILY TARGET ETF | Materials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Materials Sector Risk. The materials sector includes companies from the following industries: chemicals; metals & mining; paper & forest products; containers & packaging; and construction materials. Many companies in the materials sector are significantly affected by the level and volatility of commodity prices, the exchange value of the dollar, import controls, worldwide competition, environmental policies and consumer demand. At times, worldwide production of industrial materials has exceeded demand as a result of over-building or economic downturns, leading to poor investment returns or losses. Other risks may include liability for environmental damage and general civil liabilities, depletion of resources, and mandated expenditures for safety and pollution control. The materials sector may also be affected by economic cycles, technical progress, labor relations, and government regulations.
T-REX 2X LONG RIO DAILY TARGET ETF | Industry Concentration Risk, Other Industrial Metals And Mining Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Other Industrial Metals and Mining Industry Risk. Industrial metals and mining companies can be significantly affected by fluctuations in global commodity prices, changes in industrial demand, geopolitical developments, environmental regulations, and operational risks inherent in mining activities. The market for products produced by industrial metals and mining companies is characterized by cyclical demand tied to construction, manufacturing, and infrastructure investment, as well as sensitivity to global economic growth and trade policies. The success of industrial metals and mining companies depends in substantial part on their ability to maintain efficient extraction and processing operations, manage production costs, secure access to high-quality mineral reserves, and comply with environmental and safety standards. An unexpected decline in demand from key end-use industries, increase in regulatory or energy costs, or disruption due to labor disputes, equipment failures, or natural events could have a material adverse effect on a participant’s operating results. Many industrial metals and mining companies rely on long-term contracts, stable government relations, and favorable logistics infrastructure to sustain operations. There can be no assurance that such conditions will continue or that competitors will not access comparable reserves or produce metals that are substantially equivalent or superior.
T-REX 2X LONG RIO DAILY TARGET ETF | Mega-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Mega-Capitalization Company Risk. Investments in mega-capitalization companies may involve certain risks. Although mega-cap companies are typically well-established and may have significant financial resources, broad product lines, and diversified operations, they may be less able to adapt quickly to changing market conditions, technological innovations, or shifts in consumer preferences. As a result, mega-cap companies may experience slower growth rates compared to smaller companies.

In addition, mega-cap companies may be subject to increased regulatory scrutiny, global economic and geopolitical risks, and operational complexities associated with large-scale, multinational operations. Their size and market dominance may also make it more difficult to achieve significant growth, particularly during periods of economic expansion. While securities of mega-cap companies may be less volatile than those of smaller companies, they may underperform the broader market or other segments of the market, which could adversely affect the Fund’s investment returns.
T-REX 2X LONG RIO DAILY TARGET ETF | RIO Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
RIO Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, RIO faces risks unique to its operations, including as a large, globally diversified mining company with significant exposure to iron ore, aluminum, copper, and other industrial commodities, including commodity price volatility; changes in global demand for industrial commodities, including demand from major infrastructure, manufacturing, and construction markets, particularly from China and other emerging economies; operational risks associated with mining and processing activities, including equipment failures, accidents, labor disruptions, and severe weather events, as well as environmental incidents and legacy asset management challenges; and rising input costs, including energy, labor, transportation, and consumables, and risks associated with operating across multiple jurisdictions, including regulatory, geopolitical, and permitting uncertainties and increasing environmental, social, and governance (“ESG”) requirements. The trading price of RIO common stock may be volatile, particularly given its sensitivity to global commodity cycles, large-scale project execution, and shifts in demand related to energy transition trends, and RIO’s business strategy and end-market exposure may evolve.
T-REX 2X LONG RIO DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG RIO DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single
issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG SATS DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of SATS’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of SATS during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how SATS volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) SATS volatility; b) SATS performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to SATS. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of SATS volatility and SATS performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to SATS; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of SATS.

During periods of higher SATS volatility, the volatility of SATS may affect the Fund’s return as much as, or more than, the return of SATS. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of SATS during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if SATS provided no return over a one-year period during which SATS experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if SATS’s return is flat. For instance, if SATS’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of SATS and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of SATS. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

SATS’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 68.40%. SATS’s annualized daily volatility rates were as follows:
    
2021    39.95%
2022    38.23%
2023    57.22%
2024    70.73%
2025    109.68%

SATS’s annualized performance for the five-year period ended December 31, 2025 was 38.66%. Historical volatility and performance are not indications of what SATS volatility and performance will be in the future. SATS’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for SATS is $137.44 on April 20, 2026 and the 52-week low stock price for SATS is $14.90, which occurred on June 9, 2025. SATS’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG SATS DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of SATS will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in SATS, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if SATS subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if SATS does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with SATS and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade
at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG SATS DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG SATS DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG SATS DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain
options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG SATS DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG SATS DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of SATS, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG SATS DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to SATS that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG SATS DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of SATS at the market close on the first trading day and the value of SATS at the time of purchase. If SATS gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if SATS declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of SATS.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG SATS DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to SATS and therefore achieve its daily leveraged investment objective. The Fund’s exposure to SATS is impacted by SATS’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to SATS at the end of each day. The possibility of the Fund being materially over- or under-exposed to SATS increases on days when SATS is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) SATS. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with SATS. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to SATS. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of SATS. Any of these factors could decrease the correlation between the performance of the Fund and SATS and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG SATS DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG SATS DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. EchoStar Corporation is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of EchoStar Corporation and make no representation as to the performance of SATS. Investing in the Fund is not equivalent to investing in SATS. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to SATS.
T-REX 2X LONG SATS DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG SATS DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which EchoStar Corporation is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which EchoStar Corporation is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, SATS is assigned to the telecom services industry.

•Telecom Services Industry Risk. The telecom services industry is capital-intensive and subject to rapid technological change, regulatory oversight, and intense competition. Companies in this sector face risks from significant infrastructure investment requirements, pricing pressures, and customer churn driven by evolving consumer preferences and alternative communication platforms. Reliance on spectrum licenses, compliance with complex regulatory frameworks, and exposure to cybersecurity threats and network outages further heighten operational risk. In addition, geopolitical tensions, supply chain disruptions, and fluctuations in equipment and energy costs can materially affect service delivery and profitability. Economic downturns or shifts in consumer spending may also reduce demand for premium services. These factors collectively may significantly impact the financial performance and stability of businesses in the telecom services industry.
T-REX 2X LONG SATS DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG SATS DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG SATS DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with SATS. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that SATS value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the SATS. Under such circumstances, the market for SATS may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of SATS and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for SATS and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of SATS and correlated derivative instruments.
T-REX 2X LONG SATS DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with SATS and may incur substantial losses. If there is a significant intra-day market event and/or SATS experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG SATS DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of SATS does not provide leveraged exposure to SATS and, as a result, if the Fund invests directly in common stock of SATS to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG SATS DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG SATS DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized
gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG SATS DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG SATS DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG SATS DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG SATS DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG SATS DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG SATS DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG SATS DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG SATS DAILY TARGET ETF | Large-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Large-Capitalization Company Risk. Large-capitalization companies typically have significant financial resources, extensive product lines and broad markets for their goods and/or services. However, they may be less able to adapt to changing market conditions or to respond quickly to competitive challenges or to changes in business, product, financial, or market conditions and may not be able to maintain growth at rates that may be achieved by well-managed smaller and mid-size companies, which may affect the companies’ returns.
T-REX 2X LONG SATS DAILY TARGET ETF | SATS Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
SATS Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, SATS faces risks unique to its operations, including as a provider of satellite communications, broadband services, and wireless spectrum assets, including the performance, reliability, and lifespan of satellite assets, including the risk of satellite launch failures, in-orbit malfunctions, or capacity degradation; significant capital expenditure requirements for satellite launches, network upgrades, and technology development, including integration of acquired satellite and wireless businesses; and competition from other satellite operators, terrestrial broadband providers, and newer low-earth orbit (“LEO”) satellite networks, as well as dependence on regulatory approvals and access to spectrum for wireless and satellite services. The
trading price of SATS common stock may be volatile, particularly given its exposure to capital-intensive infrastructure, spectrum-related regulatory developments, and evolving broadband and wireless markets, and SATS’s business strategy and end-market exposure may evolve.
T-REX 2X LONG SATS DAILY TARGET ETF | Communication Services Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Communication Services Sector Risk. Communication services companies are particularly vulnerable to the potential obsolescence of products and services due to technological advancement and the innovation of competitors. Companies in the communication services sector may also be affected by other competitive pressures, such as pricing competition, as well as research and development costs, substantial capital requirements and government regulation. Additionally, fluctuating domestic and international demand, shifting demographics and often unpredictable changes in consumer tastes can drastically affect a communication services company’s profitability. While all companies may be susceptible to network security breaches, certain companies in the communication services sector may be particular targets of hacking and potential theft of proprietary or consumer information or disruptions in service, which could have a material adverse effect on their businesses.
T-REX 2X LONG SATS DAILY TARGET ETF | Industry Concentration Risk, Telecom Services Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Telecom Services Industry Risk. The telecom services industry is capital-intensive and subject to rapid technological change, regulatory oversight, and intense competition. Companies in this sector face risks from significant infrastructure investment requirements, pricing pressures, and customer churn driven by evolving consumer preferences and alternative communication platforms. Reliance on spectrum licenses, compliance with complex regulatory frameworks, and exposure to cybersecurity threats and network outages further heighten operational risk. In addition, geopolitical tensions, supply chain disruptions, and fluctuations in equipment and energy costs can materially affect service delivery and profitability. Economic downturns or shifts in consumer spending may also reduce demand for premium services. These factors collectively may significantly impact the financial performance and stability of businesses in the telecom services industry.
T-REX 2X LONG SATS DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG SATS DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG SCCO DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of SCCO’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of SCCO during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how SCCO volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) SCCO volatility; b) SCCO performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to SCCO. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of SCCO volatility and SCCO performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to SCCO; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of SCCO.

During periods of higher SCCO volatility, the volatility of SCCO may affect the Fund’s return as much as, or more than, the return of SCCO. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of SCCO during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if SCCO provided no return over a one-year period during which SCCO experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if SCCO’s return is flat. For instance, if SCCO’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of SCCO and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of SCCO. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

SCCO’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 37.70%. SCCO’s annualized daily volatility rates were as follows:
    
2021    37.60%
2022    39.59%
2023    35.05%
2024    37.14%
2025    39.16%

SCCO’s annualized performance for the five-year period ended December 31, 2025 was 18.46%. Historical volatility and performance are not indications of what SCCO volatility and performance will be in the future. SCCO’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for SCCO is $223.89 on February 27, 2026 and the 52-week low stock price for SCCO is $83.96, which occurred on April 30, 2025. SCCO’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG SCCO DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of SCCO will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in SCCO, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if SCCO subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if SCCO does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with SCCO and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment
adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG SCCO DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other
recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG SCCO DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG SCCO DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG SCCO DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other
recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG SCCO DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of SCCO, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG SCCO DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to SCCO that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG SCCO DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of SCCO at the market close on the first trading day and the value of SCCO at the time of purchase. If SCCO gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if SCCO declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of SCCO.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG SCCO DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to SCCO and therefore achieve its daily leveraged investment objective. The Fund’s exposure to SCCO is impacted by SCCO’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to SCCO at the end of each day. The possibility of the Fund being materially over- or under-exposed to SCCO increases on days when SCCO is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which
the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) SCCO. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with SCCO. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to SCCO. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of SCCO. Any of these factors could decrease the correlation between the performance of the Fund and SCCO and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG SCCO DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG SCCO DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Southern Copper Corporation is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Southern Copper Corporation and make no representation as to the performance of SCCO. Investing in the Fund is not equivalent to investing in SCCO. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to SCCO.
T-REX 2X LONG SCCO DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG SCCO DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Southern Copper Corporation is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Southern Copper Corporation is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, SCCO is assigned to the copper industry.

•Copper Industry Risk. Companies in the copper industry may be subject to significant risks, including commodity price volatility, changes in global economic conditions, and fluctuations in demand from key end markets such as construction, power generation, and industrial manufacturing. Copper producers and related companies may be adversely affected by operational and development risks, including permitting delays, labor disruptions, accidents, equipment failures, and cost inflation for energy, transportation, and other inputs. The industry may also face heightened environmental and regulatory risks, including stricter emissions standards and remediation requirements, which could increase costs or limit production. These factors may negatively impact the financial performance of copper-related investments and increase volatility in the fund’s returns.
T-REX 2X LONG SCCO DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG SCCO DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG SCCO DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with SCCO. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that SCCO value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the SCCO. Under such circumstances, the market for SCCO may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of SCCO and may impact the ability of the Fund to achieve its investment objective.
In certain cases, the market for SCCO and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of SCCO and correlated derivative instruments.
T-REX 2X LONG SCCO DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with SCCO and may incur substantial losses. If there is a significant intra-day market event and/or SCCO experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG SCCO DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of SCCO does not provide leveraged exposure to SCCO and, as a result, if the Fund invests directly in common stock of SCCO to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG SCCO DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG SCCO DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG SCCO DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited
number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG SCCO DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG SCCO DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG SCCO DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG SCCO DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG SCCO DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG SCCO DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG SCCO DAILY TARGET ETF | Materials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Materials Sector Risk. The materials sector includes companies from the following industries: chemicals; metals & mining; paper & forest products; containers & packaging; and construction materials. Many companies in the materials sector are significantly affected by the level and volatility of commodity prices, the exchange value of the dollar, import controls, worldwide competition, environmental policies and consumer demand. At times, worldwide production of industrial materials has exceeded demand as a result of over-building or economic downturns, leading to poor investment returns or losses. Other risks may include liability for environmental damage and general civil liabilities, depletion of resources, and mandated expenditures for safety and pollution control. The materials sector may also be affected by economic cycles, technical progress, labor relations, and government regulations.
T-REX 2X LONG SCCO DAILY TARGET ETF | Mega-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Mega-Capitalization Company Risk. Investments in mega-capitalization companies may involve certain risks. Although mega-cap companies are typically well-established and may have significant financial resources, broad product lines, and diversified operations, they may be less able to adapt quickly to changing market conditions, technological innovations, or shifts in consumer preferences. As a result, mega-cap companies may experience slower growth rates compared to smaller companies.

In addition, mega-cap companies may be subject to increased regulatory scrutiny, global economic and geopolitical risks, and operational complexities associated with large-scale, multinational operations. Their size and market dominance may also make it more difficult to achieve significant growth, particularly during periods of economic expansion. While securities of mega-cap companies may be less volatile than those of smaller companies, they may underperform the broader market or other segments of the market, which could adversely affect the Fund’s investment returns.
T-REX 2X LONG SCCO DAILY TARGET ETF | Industry Concentration Risk, Copper Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Copper Industry Risk. Companies in the copper industry may be subject to significant risks, including commodity price volatility, changes in global economic conditions, and fluctuations in demand from key end markets such as construction, power generation, and industrial manufacturing. Copper producers and related companies may be adversely affected by operational and development risks, including permitting delays, labor disruptions, accidents, equipment failures, and cost inflation for energy, transportation, and other inputs. The industry may also face heightened environmental and regulatory risks, including stricter emissions standards and remediation requirements, which could increase costs or limit production. These factors may negatively impact the financial performance of copper-related investments and increase volatility in the fund’s returns.
T-REX 2X LONG SCCO DAILY TARGET ETF | SCCO Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
SCCO Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, SCCO faces risks unique to its operations, including as a large copper mining company with significant operations in Peru and Mexico, including commodity price volatility, particularly fluctuations in copper prices, as well as exposure to by-product metals such as molybdenum, silver, and zinc; operational risks associated with mining and processing activities, including equipment failures, accidents, production disruptions, and reserve depletion, particularly in large-scale open-pit mining operations; and cost inflation, including increases in labor, energy, consumables, and transportation costs, which may adversely affect profitability, as well as risks associated with operating in specific jurisdictions, including political, regulatory, environmental, and community relations challenges, including potential permitting delays or social unrest. The trading price of SCCO common stock may be volatile, particularly given its sensitivity to copper demand cycles, production levels, and regional operating conditions, and SCCO’s business strategy and end-market exposure may evolve.
T-REX 2X LONG SCCO DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG SCCO DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG SIL DAILY TARGET ETF  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG SIL DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of SIL’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of SIL during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how SIL volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) SIL volatility; b) SIL performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to SIL. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of SIL volatility and SIL performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to SIL; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of SIL.

During periods of higher SIL volatility, the volatility of SIL may affect the Fund’s return as much as, or more than, the return of SIL. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of SIL during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if SIL provided no return over a one-year period during which SIL experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if SIL’s return is flat. For instance, if SIL’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of SIL and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of SIL. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

SIL’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 37.80%. SIL’s annualized daily volatility rates were as follows:
    
2021    37.81%
2022    42.88%
2023    29.83%
2024    36.56%
2025    40.38%

SIL’s annualized performance for the five-year period ended December 31, 2025 was 12.85%. Historical volatility and performance are not indications of what SIL volatility and performance will be in the future. SIL’s share price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high share price for SIL is $119.24 on January 26, 2026 and the 52-week low share price for SIL is $38.59, which occurred on May 2, 2025. SIL’s 52-week high and low share price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG SIL DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of SIL will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in SIL, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if SIL subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if SIL does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with SIL and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment
adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG SIL DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other
recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG SIL DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG SIL DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG SIL DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other
recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG SIL DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of SIL, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG SIL DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to SIL that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG SIL DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of SIL at the market close on the first trading day and the value of SIL at the time of purchase. If SIL gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if SIL declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of SIL.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG SIL DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to SIL and therefore achieve its daily leveraged investment objective. The Fund’s exposure to SIL is impacted by SIL’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to SIL at the end of each day. The possibility of the Fund being materially over- or under-exposed to SIL increases on days when SIL is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which
the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) SIL. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with SIL. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to SIL. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of SIL. Any of these factors could decrease the correlation between the performance of the Fund and SIL and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG SIL DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG SIL DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Global X Silver Miners ETF is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Global X Silver Miners ETF and make no representation as to the performance of SIL. Investing in the Fund is not equivalent to investing in SIL. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to SIL.
T-REX 2X LONG SIL DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG SIL DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG SIL DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG SIL DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with SIL. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that SIL value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the SIL. Under such circumstances, the market for SIL may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of SIL and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for SIL and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of SIL and correlated derivative instruments.
T-REX 2X LONG SIL DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with SIL and may incur substantial losses. If there is a significant intra-day market event and/or SIL experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG SIL DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including sharess, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in shares of SIL does not provide leveraged exposure to SIL and, as a result, if the Fund invests directly in shares of SIL to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG SIL DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG SIL DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG SIL DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which
case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG SIL DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG SIL DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG SIL DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG SIL DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG SIL DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG SIL DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG SIL DAILY TARGET ETF | SIL Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
SIL Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, SIL faces risks including commodity price volatility, particularly fluctuations in silver prices. The trading price of SIL shares may be volatile, and SIL’s business strategy and end-market exposure may evolve.
T-REX 2X LONG SIL DAILY TARGET ETF | Other Investment Companies Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Other Investment Companies Risk. To the extent that the Fund gains exposure directly or indirectly to other ETFs or investment companies, the value of an investment in the Fund is based on the performance of the underlying funds in which the Fund invests and the allocation of its assets among those ETFs or investment companies. The underlying ETFs and investment companies may change their investment goals, policies or practices and there can be no assurance that the underlying ETFs or investment companies will achieve their respective investment goals. Because the Fund gains exposure directly or indirectly to ETFs and other investment companies, shareholders indirectly bear a proportionate share of the expenses charged by the underlying funds in which it gains exposure which impacts the Fund’s performance. The principal risks of an investment in the Fund include the principal risks of investing in the underlying ETFs and investment companies.

The Fund is exposed to the risks of the underlying ETFs and investment companies in which it gains exposure in direct proportion to the amount of assets the Fund allocates to each underlying fund. One underlying fund may buy the same security that another underlying fund is selling. You would indirectly bear the costs of both trades. In addition, you may receive taxable gains from portfolio transactions by the underlying funds, as well as taxable gains from the Fund’s transactions in shares of the underlying funds. The Fund’s ability to achieve its investment goal depends, in part, upon the- Adviser’s skill in selecting an optimal mix of underlying funds.
T-REX 2X LONG SIL DAILY TARGET ETF | Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Concentration Risk. The Fund’s assets may be concentrated in a particular sector or sectors or industry or group of industries, which will subject the Fund to the risk that economic, political or other conditions that have a negative effect on those sectors and/or industries may negatively impact the Fund to a greater extent than if the Fund’s assets were invested in a wider variety of sectors or industries.
T-REX 2X LONG SIL DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG TE DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of TE’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of TE during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how TE volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) TE volatility; b) TE performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to TE. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of TE volatility and TE performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to TE; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of TE.

During periods of higher TE volatility, the volatility of TE may affect the Fund’s return as much as, or more than, the return of TE. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of TE during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if TE provided no return over a one-year period during which TE experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if TE’s return is flat. For instance, if TE’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of TE and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of TE. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

TE’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 93.56%. TE’s annualized daily volatility rates were as follows:
    
2021    61.46%
2022    75.62%
2023    86.46%
2024    119.21%
2025    112.10%

TE’s annualized performance for the five-year period ended December 31, 2025 was -7.86%. Historical volatility and performance are not indications of what TE volatility and performance will be in the future. TE’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for TE is $9.78 on January 28, 2026 and the 52-week low stock price for TE is $0.93, which occurred on May 15, 2025. TE’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG TE DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of TE will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in TE, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if TE subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if TE does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with TE and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment
adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG TE DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other
recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG TE DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG TE DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG TE DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other
recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG TE DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of TE, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG TE DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to TE that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG TE DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of TE at the market close on the first trading day and the value of TE at the time of purchase. If TE gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if TE declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of TE.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG TE DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to TE and therefore achieve its daily leveraged investment objective. The Fund’s exposure to TE is impacted by TE’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to TE at the end of each day. The possibility of the Fund being materially over- or under-exposed to TE increases on days when TE is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which
the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) TE. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with TE. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to TE. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of TE. Any of these factors could decrease the correlation between the performance of the Fund and TE and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG TE DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG TE DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. T1 Energy Inc. is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of T1 Energy Inc. and make no representation as to the performance of TE. Investing in the Fund is not equivalent to investing in TE. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to TE.
T-REX 2X LONG TE DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG TE DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which T1 Energy Inc. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which T1 Energy Inc. is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, TE is assigned to the electrical equipment and parts industry.

•Cyclicality, Supply Chain, and Margin Pressure Risk (Electrical Equipment & Parts). Companies in the electrical equipment and parts industry may be subject to cyclical demand tied to industrial production, construction activity, infrastructure spending, and broader economic conditions. The industry can also be vulnerable to input cost volatility (e.g., metals, resins, semiconductors), global supply chain disruptions, and tariffs or trade restrictions, which may increase operating costs or delay deliveries. In addition, pricing pressure, rapid technology change, and competition may compress margins or reduce profitability. These factors could negatively impact revenues, earnings, and the market value of securities held by the fund.
T-REX 2X LONG TE DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG TE DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG TE DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with TE. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that TE value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the TE. Under such circumstances, the market for TE may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of TE and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for TE and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of TE and correlated derivative instruments.
T-REX 2X LONG TE DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may
result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with TE and may incur substantial losses. If there is a significant intra-day market event and/or TE experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG TE DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of TE does not provide leveraged exposure to TE and, as a result, if the Fund invests directly in common stock of TE to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG TE DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG TE DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG TE DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not
have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG TE DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG TE DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not
have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG TE DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG TE DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG TE DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG TE DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG TE DAILY TARGET ETF | Industrials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industrials Sector Risk. The Fund’s assets will be concentrated in the industrials sector, which means the Fund will be more affected by the performance of the industrials sector than a fund that is more diversified. Industrial companies are affected by supply and demand both for their specific product or service and for industrials sector products in general. Government regulation, world events, exchange rates and economic conditions, technological developments and liabilities for environmental damage and general civil liabilities will likewise affect the performance of these companies. Transportation securities, a component of the industrials sector, are cyclical and have occasional sharp price movements which may result from changes in the economy, fuel prices, labor agreements and insurance costs.
T-REX 2X LONG TE DAILY TARGET ETF | Industry Concentration Risk, Cyclicality, Supply Chain, And Margin Pressure Risk (Electrical Equipment & Parts) Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cyclicality, Supply Chain, and Margin Pressure Risk (Electrical Equipment & Parts). Companies in the electrical equipment and parts industry may be subject to cyclical demand tied to industrial production, construction activity, infrastructure spending, and broader economic conditions. The industry can also be vulnerable to input cost volatility (e.g., metals, resins, semiconductors), global supply chain disruptions, and tariffs or trade restrictions, which may increase operating costs or delay deliveries. In addition, pricing pressure, rapid technology change, and competition may compress margins or reduce profitability. These factors could negatively impact revenues, earnings, and the market value of securities held by the fund.
T-REX 2X LONG TE DAILY TARGET ETF | TE Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
TE Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, TE faces risks unique to its operations, including as a developer and operator of energy and infrastructure projects, including renewable and power generation assets, including execution on project development and deployment timelines; supply-chain and equipment availability risks, including exposure to manufacturing delays, cost inflation, and logistics disruptions, particularly for specialized energy equipment and components; customer concentration and contract risk, including dependence on a limited number of counterparties, project awards, or long-term agreements, including power purchase agreements or other revenue contracts; and competition from larger, better-capitalized energy and infrastructure providers. The trading price of TE common stock may be volatile, particularly given its exposure to project financing conditions, regulatory approvals, and energy market dynamics, and TE’s business strategy and end-market exposure may evolve.
T-REX 2X LONG TE DAILY TARGET ETF | Small-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Small-Capitalization Company Risk. Small-capitalization companies generally have more limited financial and managerial resources, less diversified business operations, and smaller market shares than larger companies. As a result, they may be more vulnerable to adverse business or economic developments, and their securities may be subject to greater price fluctuations and lower trading volumes. Small-cap companies may also be less able to obtain financing on favorable terms or to withstand competitive and economic pressures, which could negatively impact their performance and returns.
T-REX 2X LONG TE DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG TE DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG TECK DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of TECK’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of TECK during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how TECK volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) TECK volatility; b) TECK performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to TECK. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of TECK volatility and TECK performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to TECK; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of TECK.

During periods of higher TECK volatility, the volatility of TECK may affect the Fund’s return as much as, or more than, the return of TECK. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of TECK during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if TECK provided no return over a one-year period during which TECK experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if TECK’s return is flat. For instance, if TECK’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of TECK and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of TECK. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

TECK’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 45.68%. TECK’s annualized daily volatility rates were as follows:
    
2021    48.01%
2022    53.72%
2023    43.73%
2024    35.46%
2025    45.83%

TECK’s annualized performance for the five-year period ended December 31, 2025 was 21.40%. Historical volatility and performance are not indications of what TECK volatility and performance will be in the future. TECK’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for TECK is $63.27 on April 23, 2026 and the 52-week low stock price for TECK is $30.98, which occurred on August 20, 2025. TECK’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG TECK DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of TECK will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in TECK, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if TECK subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if TECK does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with TECK and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment
adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG TECK DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other
recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG TECK DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG TECK DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG TECK DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other
recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG TECK DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of TECK, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG TECK DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to TECK that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG TECK DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of TECK at the market close on the first trading day and the value of TECK at the time of purchase. If TECK gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if TECK declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of TECK.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG TECK DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to TECK and therefore achieve its daily leveraged investment objective. The Fund’s exposure to TECK is impacted by TECK’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to TECK at the end of each day. The possibility of the Fund being materially over- or under-exposed to TECK increases on days when TECK is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which
the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) TECK. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with TECK. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to TECK. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of TECK. Any of these factors could decrease the correlation between the performance of the Fund and TECK and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG TECK DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG TECK DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Teck Resources Limited is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Teck Resources Limited and make no representation as to the performance of TECK. Investing in the Fund is not equivalent to investing in TECK. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to TECK.
T-REX 2X LONG TECK DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG TECK DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Teck Resources Limited is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Teck Resources Limited is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, TECK is assigned to the other industrial metals and mining industry.

•Other Industrial Metals and Mining Industry Risk. Industrial metals and mining companies can be significantly affected by fluctuations in global commodity prices, changes in industrial demand, geopolitical developments, environmental regulations, and operational risks inherent in mining activities. The market for products produced by industrial metals and mining companies is characterized by cyclical demand tied to construction, manufacturing, and infrastructure investment, as well as sensitivity to global economic growth and trade policies. The success of industrial metals and mining companies depends in substantial part on their ability to maintain efficient extraction and processing operations, manage production costs, secure access to high-quality mineral reserves, and comply with environmental and safety standards. An unexpected decline in demand from key end-use industries, increase in regulatory or energy costs, or disruption due to labor disputes, equipment failures, or natural events could have a material adverse effect on a participant’s operating results. Many industrial metals and mining companies rely on long-term contracts, stable government relations, and favorable logistics infrastructure to sustain operations. There can be no assurance that such conditions will continue or that competitors will not access comparable reserves or produce metals that are substantially equivalent or superior.
T-REX 2X LONG TECK DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG TECK DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to
credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG TECK DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with TECK. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that TECK value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the TECK. Under such circumstances, the market for TECK may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of TECK and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for TECK and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of TECK and correlated derivative instruments.
T-REX 2X LONG TECK DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with TECK and may incur substantial losses. If there is a significant intra-day market event and/or TECK experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG TECK DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of TECK does not provide leveraged exposure to TECK and, as a result, if the Fund invests directly in common stock of TECK to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG TECK DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG TECK DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements.
The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG TECK DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:

•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG TECK DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG TECK DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG TECK DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG TECK DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG TECK DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG TECK DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG TECK DAILY TARGET ETF | Foreign Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Foreign Investing Risk. Securities issued by entities organized, domiciled, or with a principal executive office outside the United States may involve certain special risk considerations that are not typically associated with investing in securities of U.S. companies. World events could adversely affect the value and/or liquidity of securities of foreign companies or foreign issuers, potentially in ways that differ from impacts to U.S. companies or issuers. Further, global economies and financial markets are becoming increasingly interconnected, which increases the possibility that conditions in one country or region could adversely impact a different country or region. In addition, with respect to certain foreign countries, there is the possibility of expropriation or confiscatory taxation or other adverse tax consequences, political or social instability, changes to laws and regulations or interpretations of laws and regulations, war, terrorism, nationalization, limitations on the removal of funds or other assets, or diplomatic developments that could affect U.S. investments in those countries. Additionally, the imposition of sanctions, exchange controls (including repatriation restrictions), confiscations, trade restrictions (including tariffs) and other government restrictions on the United States by a foreign country, or on a foreign country or issuer by the United States could adversely affect the value of securities issued by a non-U.S. company. Because foreign issuers are not generally subject to uniform accounting, auditing, and financial reporting standards and practices comparable to those applicable to U.S. issuers, there may be less publicly available information about certain foreign issuers than about U.S. issuers. The financial statements of the issuer of the Reference Asset are prepared in accordance with International Financial Reporting Standards (“IFRS”), as issued by the International Accounting Standards Board, which differs in certain respects from United States generally accepted accounting principles (“U.S. GAAP”) and practices prescribed by the SEC. Therefore, such financial statements may not be comparable to financial statements prepared in accordance with U.S. GAAP.
T-REX 2X LONG TECK DAILY TARGET ETF | Materials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Materials Sector Risk. The materials sector includes companies from the following industries: chemicals; metals & mining; paper & forest products; containers & packaging; and construction materials. Many companies in the materials sector are significantly affected by the level and volatility of commodity prices, the exchange value of the dollar, import controls, worldwide competition, environmental policies and consumer demand. At times, worldwide production of industrial materials has exceeded demand as a result of over-building or economic downturns, leading to poor investment returns or losses. Other risks may include liability for environmental damage and general civil liabilities, depletion of resources, and mandated expenditures for safety and pollution control. The materials sector may also be affected by economic cycles, technical progress, labor relations, and government regulations.
T-REX 2X LONG TECK DAILY TARGET ETF | Industry Concentration Risk, Other Industrial Metals And Mining Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Other Industrial Metals and Mining Industry Risk. Industrial metals and mining companies can be significantly affected by fluctuations in global commodity prices, changes in industrial demand, geopolitical developments, environmental regulations, and operational risks inherent in mining activities. The market for products produced by industrial metals and mining companies is characterized by cyclical demand tied to construction, manufacturing, and infrastructure investment, as well as sensitivity to global economic growth and trade policies. The success of industrial metals and mining companies depends in substantial part on their ability to maintain efficient extraction and processing operations, manage production costs, secure access to high-quality mineral reserves, and comply with environmental and safety standards. An unexpected decline in demand from key end-use industries, increase in regulatory or energy costs, or disruption due to labor disputes, equipment failures, or natural events could have a material adverse effect on a participant’s operating results. Many industrial metals and mining companies rely on long-term contracts, stable government relations, and favorable logistics infrastructure to sustain operations. There can be no assurance that such conditions will continue or that competitors will not access comparable reserves or produce metals that are substantially equivalent or superior.
T-REX 2X LONG TECK DAILY TARGET ETF | Large-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Large-Capitalization Company Risk. Large-capitalization companies typically have significant financial resources, extensive product lines and broad markets for their goods and/or services. However, they may be less able to adapt to changing market conditions or to respond quickly to competitive challenges or to changes in business, product, financial, or market conditions and may not be able to maintain growth at rates that may be achieved by well-managed smaller and mid-size companies, which may affect the companies’ returns.
T-REX 2X LONG TECK DAILY TARGET ETF | TECK Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
TECK Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, TECK faces risks
unique to its operations, including as a diversified natural resources company with significant exposure to copper, steelmaking coal, and zinc, including commodity price volatility, particularly fluctuations in copper prices and steelmaking coal prices; operational risks associated with mining and processing, including equipment failures, accidents, labor disruptions, geotechnical issues, and production interruptions, particularly in large-scale open-pit and underground mining operations; reserve and resource estimation risk, including uncertainty regarding the quantity, grade, and economic recoverability of mineral deposits; and cost inflation, including increases in labor, energy, consumables, and transportation costs, as well as risks associated with operating in multiple jurisdictions, including Canada, Chile, and Peru, including regulatory, environmental, permitting, and Indigenous or community relations considerations. The trading price of TECK common stock may be volatile, particularly given its sensitivity to global commodity cycles, capital-intensive project development, and exposure to energy transition demand for copper, and TECK’s business strategy and end-market exposure may evolve.
T-REX 2X LONG TECK DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG TECK DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.
T-REX 2X LONG ZETA DAILY TARGET ETF | Effects Of Compounding And Market Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Effects of Compounding and Market Volatility Risk. The Fund has a daily leveraged investment objective and the Fund’s performance for periods greater than a trading day will be the result of each day's returns compounded over the period, which is very likely to differ from 200% of ZETA’s performance, before fees and expenses. Compounding affects all investments, but has a more significant impact on funds that are leveraged and that rebalance daily and becomes more pronounced as volatility and holding periods increase. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of ZETA during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how ZETA volatility and its return could affect the Fund’s performance. Fund performance for periods greater than one single day can be estimated given any set of assumptions for the following factors: a) ZETA volatility; b) ZETA performance; c) period of time; d) financing rates associated with leveraged exposure; e) other Fund expenses; and f) dividends or interest paid with respect to ZETA. The chart below illustrates the impact of two principal factors – volatility and performance – on Fund performance. The chart shows estimated Fund returns for a number of combinations of ZETA volatility and ZETA performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to ZETA; (ii) there were no Fund expenses; and (iii) borrowing/lending rates (to obtain leveraged exposure) of 0%. If Fund expenses and/or actual borrowing/lending rates were reflected, the estimated returns would be different than those shown. Particularly during periods of higher volatility, compounding will cause results for periods longer than a trading day to vary from 200% of the performance of ZETA.

During periods of higher ZETA volatility, the volatility of ZETA may affect the Fund’s return as much as, or more than, the return of ZETA. The impact of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of ZETA during a shareholder’s holding period of an investment in the Fund.

As shown in the chart below, the Fund would be expected to lose 6.1% if ZETA provided no return over a one-year period during which ZETA experienced annualized volatility of 25%. At higher ranges of volatility, there is a chance of a significant loss of value in the Fund, even if ZETA’s return is flat. For instance, if ZETA’s annualized volatility is 100%, the Fund would be expected to lose 63.2% of its value, even if the cumulative return for the year was 0%. Areas shaded red (or dark gray) represent those scenarios where the Fund can be expected to return less than 200% of the performance of ZETA and those shaded green (or light gray) represent those scenarios where the Fund can be expected to return more than 200% of the performance of ZETA. The table below is not a representation of the Fund’s actual returns, which may be significantly better or worse than the returns shown below as a result of any of the factors discussed above or in “Daily Correlation Risk” below. 
One
Year
200%
One
Year
Volatility Rate
Return
Return
10%
25%
50%
75%
100%
-60%
-120%
-84.2%
-85.0%
-87.5%
-90.9%
-94.1%
-50%
-100%
-75.2%
-76.5%
-80.5%
-85.8%
-90.8%
-40%
-80%
-64.4%
-66.2%
-72.0%
-79.5%
-86.8%
-30%
-60%
-51.5%
-54.0%
-61.8%
-72.1%
-82.0%
-20%
-40%
-36.6%
-39.9%
-50.2%
-63.5%
-76.5%
-10%
-20%
-19.8%
-23.9%
-36.9%
-53.8%
-70.2%
0%
0%
-1.0%
-6.1%
-22.1%
-43.0%
-63.2%
10%
20%
19.8%
13.7%
-5.8%
-31.1%
-55.5%
20%
40%
42.6%
35.3%
12.1%
-18.0%
-47.0%
30%
60%
67.3%
58.8%
31.6%
-3.7%
-37.8%
40%
80%
94.0%
84.1%
52.6%
11.7%
-27.9%
50%
100%
122.8%
111.4%
75.2%
28.2%
-17.2%
60%
120%
153.5%
140.5%
99.4%
45.9%
-5.8%

ZETA’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 72.42%. ZETA’s annualized daily volatility rates were as follows:
    
2021    76.43%
2022    85.12%
2023    51.79%
2024    74.12%
2025    72.59%

ZETA’s annualized performance for the five-year period ended December 31, 2025 was 16.84%. Historical volatility and performance are not indications of what ZETA volatility and performance will be in the future. ZETA’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently, the 52-week high stock price for ZETA is $24.90 on January 9, 2026 and the 52-week low stock price for ZETA is $12.00, which occurred on April 23, 2025. ZETA’s 52-week high and low stock price may change significantly over a short period of time.
For information regarding the effects of volatility and performance on the long-term performance of the Fund, see “Additional Information About Investment Techniques and Policies.”
T-REX 2X LONG ZETA DAILY TARGET ETF | Leverage Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Leverage Risk. The Fund obtains investment exposure in excess of its net assets by utilizing leverage and may lose more money in market conditions that are adverse to its investment objective than a fund that does not utilize leverage. An investment in the Fund is exposed to the risk that a decline in the daily performance of ZETA will be magnified. This means that an investment in the Fund will be reduced by an amount equal to 2% for every 1% daily decline in ZETA, not including the costs of financing leverage and other operating expenses, which would further reduce its value. The Fund could theoretically lose an amount greater than its net assets in the event of a security decline of more than 50%. This would result in a total loss of a shareholder’s investment in one day even if ZETA subsequently moves in the opposite direction and eliminates all or a portion of its earlier daily change. A total loss may occur in a single day even if ZETA does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with ZETA and may increase the volatility of the Fund.

To the extent that the instruments utilized by the Fund are thinly traded or have a limited market, the Fund may be unable to meet its investment objective due to a lack of available investments or counterparties. During such periods, the Fund’s ability to issue additional Creation Units may be adversely affected. As a result, the Fund’s shares could trade at a premium or discount to their net asset value and/or the bid-ask spread of the Fund’s shares could widen. Under such circumstances, the Fund may increase its transaction fee, change its investment objective by, for example, seeking to track an alternative security, reduce its leverage or close. In such circumstances, the Fund’s investment
adviser will consult with counsel to the Trust and its Board of Trustees, and if determined to be necessary, the Fund will amend and/or supplement the prospectus as promptly as feasible under the circumstances to include appropriate disclosures.
T-REX 2X LONG ZETA DAILY TARGET ETF | Derivatives Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. Investing in derivatives may be considered aggressive and may expose the Fund to greater risks, and may result in larger losses or smaller gains, than investing directly in the reference assets underlying those derivatives, which may prevent the Fund from achieving its investment objective.

The Fund expects to use swap agreements to achieve its investment objective. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other investments, including risk related to the market, leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty, liquidity, valuation, and legal restrictions. The performance of a derivative may not track the performance of its reference asset, including due to fees and other costs associated with it. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of the amount initially invested. As a result, the value of an investment in the Fund may change quickly and without warning. Additionally, any financing, borrowing or other costs associated with using derivatives may also have the effect of lowering the Fund’s return. Such costs may increase as interest rates rise.

Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.

Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.

FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other
recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG ZETA DAILY TARGET ETF | Derivatives Risk, Swap Agreements Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Swap Agreements. Swap agreements are entered into with financial institutions for a specified period which may range from one day to more than one year. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference or underlying securities or instruments. The gross return to be exchanged or swapped between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in a reference asset. Swap agreements are generally traded over-the-counter, and therefore, may not receive as much regulatory protection as exchange-traded instruments, which may expose investors to significant losses.

The Fund will be subject to regulatory constraints relating to the level of value at risk that the Fund may incur through its derivatives portfolio. To the extent the Fund exceeds these regulatory thresholds over an extended period, the Fund may determine that it is necessary to make adjustments to the Fund’s investment strategy and the Fund may not achieve its investment objective. To the extent that the Fund exceeds the level of value at risk for an extended period, the Fund may amend and/or supplement its prospectus as promptly as feasible under the particular circumstances to include appropriate adjustments to its investment strategy and if necessary, the Fund’s name.
T-REX 2X LONG ZETA DAILY TARGET ETF | Derivatives Risk, Call Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Call Options. The use of call options involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which is affected by fiscal and monetary policies and by national and international politics, changes in the actual or implied volatility or the reference asset, and the time remaining until the expiration of the option contract and economic events. The values of the options contracts in which the Fund invests are substantially influenced by the value of the underlying instrument. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to expiry, the value of an option generally does not increase or decrease at the same rate as the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the reference asset, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. As the options contracts are exercised or expire the Fund may enter into new options contracts, a practice referred to as rolling.
T-REX 2X LONG ZETA DAILY TARGET ETF | Derivatives Risk, FLEX Options Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
FLEX Options. The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. Prior to the expiration date, the value of the FLEX Options will be determined based upon market quotations or using other
recognized pricing methods. The value of the FLEX Options prior to the expiration date may vary because of related factors other than the value of the reference asset. Factors that may influence the value of the FLEX Options, other than gains or losses in the reference asset, may include interest rate changes, changing supply and demand, decreased liquidity of the FLEX Options, and changing volatility levels of the reference asset. FLEX Options are listed on an exchange; however, it is not guaranteed that a liquid secondary trading market will exist. In the event that trading in the FLEX Options is limited or absent, the value of the FLEX Options may decrease.
T-REX 2X LONG ZETA DAILY TARGET ETF | Counterparty Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Counterparty Risk. A counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty or its affiliate becomes insolvent, bankrupt or defaults on its payment obligations to the Fund, the value of an investment held by the Fund may decline. Additionally, if any collateral posted by the counterparty for the benefit of the Fund is insufficient or there are delays in the Fund’s ability to access such collateral, the Fund may not be able to achieve its leveraged investment objective.

In addition, the Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund’s exposure to counterparty credit risk. Further, there is a risk that no suitable counterparties will be willing to enter into, or continue to enter into, transactions with the Fund and, as a result, the Fund may not be able to achieve its leveraged investment objective or may decide to change its leveraged investment objective. The risk of a limited number of counterparties may be, and historically has been, particularly accentuated during times of significant market volatility. During times of significant market volatility, the costs to enter into the swaps that the Fund utilizes may increase significantly, which may negatively impact the Fund’s returns. While the objective of the Fund is to seek daily investment results, before fees and expenses, of 200% of the daily performance of ZETA, it is important for investors to understand that significant increases in the costs of entering into the swaps may negatively impact investment results after fees and expenses.
T-REX 2X LONG ZETA DAILY TARGET ETF | Rebalancing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Rebalancing Risk. If for any reason the Fund is unable to rebalance all or a part of its portfolio, or if all or a portion of the portfolio is rebalanced incorrectly, the Fund’s investment exposure may not be consistent with its investment objective. In these instances, the Fund may have investment exposure to ZETA that is significantly greater or significantly less than its stated multiple. The Fund may be more exposed to leverage risk than if it had been properly rebalanced and may not achieve its investment objective, leading to significantly greater losses or reduced gains.
T-REX 2X LONG ZETA DAILY TARGET ETF | Intra-Day Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Intra-Day Investment Risk. The Fund seeks leveraged investment results from the close of the market on a given trading day until the close of the market on the subsequent trading day. The exact exposure of an investment in the Fund intraday in the secondary market is a function of the difference between the value of ZETA at the market close on the first trading day and the value of ZETA at the time of purchase. If ZETA gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if ZETA declines, the Fund’s net assets will decline by the same amount as the Fund’s exposure. Thus, an investor that purchases shares intra-day may experience performance that is greater than, or less than, the Fund’s stated multiple of ZETA.

If there is a significant intra-day market event and/or the securities experience a significant change in value, the Fund may not meet its investment objective, may not be able to rebalance its portfolio appropriately, or may experience significant premiums or discounts, or widened bid-ask spreads. Additionally, the Fund may close to purchases and sales of shares (“Shares”) prior to the close of trading on the Exchange and incur significant losses.
T-REX 2X LONG ZETA DAILY TARGET ETF | Daily Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Daily Correlation Risk. There is no guarantee that the Fund will achieve a high degree of correlation to ZETA and therefore achieve its daily leveraged investment objective. The Fund’s exposure to ZETA is impacted by ZETA’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to ZETA at the end of each day. The possibility of the Fund being materially over- or under-exposed to ZETA increases on days when ZETA is volatile near the close of the trading day. Market disruptions, regulatory restrictions and high volatility will also adversely affect the Fund’s ability to adjust exposure to the required levels.

The Fund may have difficulty achieving its daily leveraged investment objective for many reasons, including fees, expenses, transaction costs, financing costs related to the use of derivatives, accounting standards and their application to income items, disruptions, illiquid or high volatility in the markets for the securities or financial instruments in which
the Fund invests, early and unanticipated closings of the markets on which the holdings of the Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions, regulatory and tax considerations, which may cause the Fund to hold (or not to hold) ZETA. The Fund may take or refrain from taking positions in order to improve tax efficiency, comply with regulatory restrictions, or for other reasons, each of which may negatively affect the Fund’s desired correlation with ZETA. The Fund may be subject to large movements of assets into and out of the Fund, potentially resulting in the Fund being over- or under-exposed to ZETA. Additionally, the Fund’s underlying investments and/or reference assets may trade on markets that may not be open on the same day as the Fund, which may cause a difference between the changes in the daily performance of the Fund and changes in the performance of ZETA. Any of these factors could decrease the correlation between the performance of the Fund and ZETA and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG ZETA DAILY TARGET ETF | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk. The Fund’s investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, general market liquidity, exchange trading suspensions and closures, and public health risks. The Fund is subject to the risk that geopolitical events will disrupt markets and adversely affect global economies, markets, and exchanges. Local, regional, or global events such as war, acts of terrorism, natural disasters, the spread of infectious illness or other public health issues, conflicts and social unrest or other events could have a significant impact on the Fund, its investments, and the Fund’s ability to achieve its investment objective.
T-REX 2X LONG ZETA DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Zeta Global Holdings Corp. is not affiliated with the Trust, the Adviser, or any affiliates thereof and is not involved with this offering in any way, and has no obligation to consider the Fund in taking any corporate actions that might affect the value of the Fund. The Trust, the Fund and any affiliate are not responsible for the performance of Zeta Global Holdings Corp. and make no representation as to the performance of ZETA. Investing in the Fund is not equivalent to investing in ZETA. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to ZETA.
T-REX 2X LONG ZETA DAILY TARGET ETF | Underlying Security Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Underlying Security Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.
T-REX 2X LONG ZETA DAILY TARGET ETF | Technology Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Technology Sector Risk.    The market prices of technology-related securities tend to exhibit a greater degree of market risk and sharp price fluctuations than other types of securities. These securities may fall in and out of favor with investors rapidly, which may cause sudden selling and dramatically lower market prices. Technology securities may be affected by intense competition, obsolescence of existing technology, general economic conditions and government regulation and may have limited product lines, markets, financial resources, or personnel. Technology companies may experience dramatic and often unpredictable changes in growth rates and competition for qualified personnel. These companies are also heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely impact a company’s profitability. A small number of companies represent a large portion of the technology industry. In addition, a rising interest rate environment tends to negatively affect technology companies, those
technology companies seeking to finance expansion would have increased borrowing costs, which may negatively impact earnings. Technology companies having high market valuations may appear less attractive to investors, which may cause sharp decreases in their market prices.
T-REX 2X LONG ZETA DAILY TARGET ETF | Industry Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Zeta Global Holdings Corp. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Zeta Global Holdings Corp. is assigned). A portfolio concentrated in a particular industry may present more risks than a portfolio broadly diversified over several industries. As of the date of this prospectus, ZETA is assigned to the software - infrastructure industry.

•Computer Software Industry Risk. Computer software companies can be significantly affected by competitive pressures, aggressive pricing, technological developments, changing domestic demand, the ability to attract and retain skilled employees and availability and price of components. The market for products produced by computer software companies is characterized by rapidly changing technology, rapid product obsolescence, cyclical market patterns, evolving industry standards and frequent new product introductions. The success of computer software companies depends in substantial part on the timely and successful introduction of new products and the ability to service such products. An unexpected change in one or more of the technologies affecting an issuer’s products or in the market for products based on a particular technology could have a material adverse effect on a participant’s operating results. Many computer software companies rely on a combination of patents, copyrights, trademarks, and trade secret laws to establish and protect their proprietary rights in their products and technologies. There can be no assurance that the steps taken by computer software companies to protect their proprietary rights will be adequate to prevent misappropriation of their technology or that competitors will not independently develop technologies that are substantially equivalent or superior to such companies’ technology.
T-REX 2X LONG ZETA DAILY TARGET ETF | Fixed Income Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.
T-REX 2X LONG ZETA DAILY TARGET ETF | Money Market Instrument Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Money market funds may be subject to credit risk with respect to the debt instruments in which they invest. Depository accounts may be subject to credit risk with respect to the financial institution in which the depository account is held. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments may lose money.
T-REX 2X LONG ZETA DAILY TARGET ETF | Liquidity Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk. Holdings of the Fund may be difficult to buy or sell or may be illiquid, particularly during times of market turmoil. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to buy or sell an illiquid security or derivative instrument at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions may prevent the Fund from limiting losses, realizing gains, or achieving a high correlation with ZETA. There is no assurance that a security or derivative instrument that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund. To the extent that ZETA value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the ZETA. Under such circumstances, the market for ZETA may lack sufficient liquidity for all market participants' trades.
Therefore, the Fund may have more difficulty transacting in the securities or financial instruments and the Fund's transactions could exacerbate the price changes of ZETA and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for ZETA and/or Fund may lack sufficient liquidity for all market participants' trades. Therefore, the Fund may have difficulty transacting in it and/or in correlated investments, such as swap contracts. Further, the Fund's transactions could exacerbate illiquidity and volatility in the price of ZETA and correlated derivative instruments.
T-REX 2X LONG ZETA DAILY TARGET ETF | Early Close/Trading Halt Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Early Close/Trading Halt Risk. Although an underlying security’s shares are listed for trading on an exchange, there can be no assurance that an active trading market for such shares will be available at all times. An exchange or market may close or issue trading halts on specific securities or financial instruments, including the shares of the Fund. Under such circumstances, the ability to buy or sell certain portfolio securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell investments for its portfolio, may disrupt the Fund’s creation/redemption process, and may temporarily prevent investors from buying and selling shares of the Fund. In addition, the Fund may be unable to accurately price its investments, may fail to achieve performance that is correlated with ZETA and may incur substantial losses. If there is a significant intra-day market event and/or ZETA experiences a significant price increase or decrease, the Fund may not meet its investment objective or rebalance its portfolio appropriately. Additionally, the Fund may close to purchases and sales of Shares prior to the close of regular trading on Cboe BZX Exchange, Inc. and incur significant losses.
T-REX 2X LONG ZETA DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including common stocks, are subject to market risks that may cause their prices to fluctuate over time. Fluctuations in the value of equity securities in which the Fund invests, and/or has exposure to, will cause the net asset value of the Fund to fluctuate. The Fund’s direct investments in common stock of ZETA does not provide leveraged exposure to ZETA and, as a result, if the Fund invests directly in common stock of ZETA to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG ZETA DAILY TARGET ETF | Cash Transaction Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Cash Transaction Risk. The Fund intends to effect creations and redemptions for cash rather than for in-kind securities. As a result, the Fund may not be tax efficient and may incur brokerage costs related to buying and selling securities to achieve its investment objective thus incurring additional expenses than if it had effected creations and redemptions in kind. To the extent that such costs are not offset by transaction fees paid by an authorized participant, the Fund may bear such costs, which will decrease the Fund’s net asset value.
T-REX 2X LONG ZETA DAILY TARGET ETF | Tax Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Tax Risk. In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategy will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund may make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its shareholders, and were ineligible to or were not to cure such failure, the Fund would be taxed in the same manner as an ordinary corporation subject to U.S. federal income tax on all its income at the fund level. The resulting taxes could substantially reduce the Fund’s net assets and the amount of income available for distribution. In addition, in order to requalify for taxation as a RIC, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make certain distributions. Please see the section entitled “Taxes” in the Statement of Additional Information for more information.
T-REX 2X LONG ZETA DAILY TARGET ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks. The Fund is an exchange-traded fund, and, as a result of an ETF’s structure, it is exposed to the following risks:
•Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

•Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.

•Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

•Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.

•Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG ZETA DAILY TARGET ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Limitation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Authorized Participants, Market Makers, and Liquidity Providers Limitation Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
T-REX 2X LONG ZETA DAILY TARGET ETF | ETF Risks, Cash Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cash Redemption Risk. The Fund intends to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used.
T-REX 2X LONG ZETA DAILY TARGET ETF | ETF Risks, Costs Of Buying Or Selling Shares Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
T-REX 2X LONG ZETA DAILY TARGET ETF | ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility and volatility in the Fund’s portfolio holdings, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. If an investor purchases Shares at a time when the market price is at a premium to the NAV of the Shares or sells at a time when the market price is at a discount to the NAV of the Shares, then the investor may sustain losses that are in addition to any losses caused by a decrease in NAV.
T-REX 2X LONG ZETA DAILY TARGET ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading. Although Shares are listed for trading on a national securities exchange, and may be traded on other U.S. exchanges, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Fund Shares.
T-REX 2X LONG ZETA DAILY TARGET ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
New Fund Risk. As of the date of this prospectus, the Fund has no operating history and currently has fewer assets than larger funds. Like other new funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.
T-REX 2X LONG ZETA DAILY TARGET ETF | Mid-Capitalization Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Mid-Capitalization Company Risk. Mid-capitalization companies may have limited financial resources, narrower product lines, and less diversified markets than larger, more established companies. While mid-cap companies often have greater growth potential than large-cap firms, they may also be more sensitive to changing market conditions, competitive pressures, and economic downturns. Their securities may experience greater price volatility and may be less liquid than those of large-cap companies, which could affect their market value and investment returns.
T-REX 2X LONG ZETA DAILY TARGET ETF | Industry Concentration Risk, Computer Software Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Computer Software Industry Risk. Computer software companies can be significantly affected by competitive pressures, aggressive pricing, technological developments, changing domestic demand, the ability to attract and retain skilled employees and availability and price of components. The market for products produced by computer software companies is characterized by rapidly changing technology, rapid product obsolescence, cyclical market patterns, evolving industry standards and frequent new product introductions. The success of computer software companies depends in substantial part on the timely and successful introduction of new products and the ability to service such products. An unexpected change in one or more of the technologies affecting an issuer’s products or in the market for products based on a particular technology could have a material adverse effect on a participant’s operating results. Many computer software companies rely on a combination of patents, copyrights, trademarks, and trade secret laws to establish and protect their proprietary rights in their products and technologies. There can be no assurance that the steps taken by computer software companies to protect their proprietary rights will be adequate to prevent misappropriation of their technology or that competitors will not independently develop technologies that are substantially equivalent or superior to such companies’ technology.
T-REX 2X LONG ZETA DAILY TARGET ETF | ZETA Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
ZETA Investing Risk. Issuer-specific attributes may cause an investment held by the Fund to be more volatile than the market generally. The value of an individual security or particular type of security may perform differently from the market as a whole. In addition to the risks associated generally with investments in equity securities, ZETA faces risks unique to its operations, including as a data-driven marketing technology company providing customer acquisition and engagement solutions, including customer demand for digital marketing and advertising solutions, which may be sensitive to macroeconomic conditions and customer marketing budgets; competition from larger, better-capitalized technology and advertising platform providers; dependence on the availability and quality of consumer data and identity solutions, including third-party data sources and data privacy-compliant identity resolution capabilities; and the effectiveness of the company’s platform in delivering measurable marketing outcomes across channels such as email, mobile, and digital media. The trading price of ZETA common stock may be volatile, particularly given its reliance on data usage, evolving privacy regulations, and advertising market conditions, and ZETA’s business strategy and end-market exposure may evolve.
T-REX 2X LONG ZETA DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund may not achieve its leveraged investment objective and there is a risk that you could lose all of your money invested in the Fund.
T-REX 2X LONG ZETA DAILY TARGET ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. The Fund is classified as “non-diversified” under the Investment Company Act of 1940, as amended. This means it has the ability to invest a relatively high percentage of its assets in the securities of a small number of issuers or in financial instruments with a single counterparty or a few counterparties. This may increase the Fund’s volatility and increase the risk that the Fund’s performance will decline based on the performance of a single issuer or the credit of a single counterparty and make the Fund more susceptible to risks associated with a single economic, political, or regulatory occurrence than a diversified fund.