v3.25.4
Investment Risks
Mar. 11, 2026
T-REX 2X LONG GPCR 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 GPCR’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 GPCR during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how GPCR 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) GPCR volatility; b) GPCR 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 GPCR. 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 GPCR volatility and GPCR performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to GPCR; (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 GPCR.

During periods of higher GPCR volatility, the volatility of GPCR may affect the Fund’s return as much as, or more than, the return of GPCR. 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 GPCR 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 GPCR provided no return over a one-year period during which GPCR 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 GPCR’s return is flat. For instance, if GPCR’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 GPCR 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 GPCR. 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%

GPCR’s annualized historical daily volatility rate for the three-year period ended December 31, 2025 was 111.93%. GPCR’s annualized daily volatility rates were as follows:

2023    123.53%
2024    83.71%
2025    125.00%

Volatility for a shorter period of time may have been substantially higher.

GPCR’s annualized performance for the three-year period ended December 31, 2025 was 69.34%. Historical volatility and performance are not indications of what GPCR volatility and performance will be in the future. GPCR’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 GPCR is $94.90 on December 8, 2025 and the 52-week low stock price for GPCR is $13.22, which occurred on April 9, 2025. GPCR’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 GPCR 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 GPCR 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 GPCR, 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 GPCR 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 GPCR does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with GPCR 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 GPCR 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 small 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 GPCR 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 GPCR, 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 GPCR 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 GPCR 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 GPCR 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 GPCR at the market close on the first trading day and the value of GPCR at the time of purchase. If GPCR gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if GPCR 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 GPCR.

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 GPCR 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 GPCR and therefore achieve its daily leveraged investment objective. The Fund’s exposure to GPCR is impacted by GPCR’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to GPCR at the end of each day. The possibility of the Fund being materially over- or under-exposed to GPCR increases on days when GPCR 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) GPCR. 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 GPCR. 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 GPCR. 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 GPCR. Any of these factors could decrease the correlation between the performance of the Fund and GPCR and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG GPCR 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 GPCR DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Structure Therapeutics 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 Structure Therapeutics Inc. and make no representation as to the performance of GPCR. Investing in the Fund is not equivalent to investing in GPCR. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to GPCR.
T-REX 2X LONG GPCR 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 GPCR DAILY TARGET ETF | GPCR Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
GPCR 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, GPCR faces risks unique to its operations as a clinical-stage biopharmaceutical company focused on the discovery and development of oral small-molecule therapeutics targeting G protein-coupled receptors. These risks include, among others, the substantial uncertainty inherent in the research and development process; delays, failures, or negative results in preclinical studies or clinical trials; the inability to obtain, maintain, or expand regulatory approvals in the United States or other jurisdictions; reliance on third-party contract research organizations and manufacturers that may experience production, supply, or quality control issues; dependence on the successful advancement of a limited product pipeline; the need to obtain substantial additional capital to fund ongoing operations; risks related to intellectual property protection and potential patent challenges; competition from other biotechnology and pharmaceutical companies developing alternative therapies; the ability to attract and retain key scientific, clinical, and executive personnel; and exposure to changes in healthcare laws, reimbursement policies, and regulatory frameworks. Because GPCR has a limited operating history and does not have approved products generating commercial revenue, it has incurred significant operating losses since its inception and expects to incur significant operating losses for the foreseeable future, its financial condition and stock price may be particularly sensitive to clinical, regulatory, or financing developments. The trading price of GPCR’s common stock has been volatile and may continue to fluctuate significantly based on clinical data releases, regulatory announcements, market conditions, or investor sentiment.
T-REX 2X LONG GPCR DAILY TARGET ETF | Healthcare Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Healthcare Sector Risk.  The Fund's assets will be concentrated in the healthcare sector, which means the Fund will be more affected by the performance of the healthcare sector than a fund that is more diversified. Companies in the healthcare sector are subject to extensive government regulation and their profitability can be significantly affected by
restrictions on government reimbursement for medical expenses, rising costs of medical products and services, pricing pressure (including price discounting), limited product lines and an increased emphasis on the delivery of healthcare through outpatient services. Companies in the healthcare sector are heavily dependent on obtaining and defending patents, which may be time consuming and costly, and the expiration of patents may also adversely affect the profitability of these companies. Healthcare companies are also subject to extensive litigation based on product liability and similar claims. In addition, their products can become obsolete due to industry innovation, changes in technologies or other market developments. Many new products in the healthcare sector require significant research and development and may be subject to regulatory approvals, all of which may be time consuming and costly with no guarantee that any product will come to market.
T-REX 2X LONG GPCR 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 Structure Therapeutics Inc. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Structure Therapeutics 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, GPCR is assigned to the biotechnology industry.

•Biotechnology Industry Risk. Biotechnology companies are subject to various risks, including the loss or impairment of patents or intellectual property rights and significant costs associated with developing, procuring and/or marketing of new drugs, products or technologies. Biotechnology companies may also experience difficulties obtaining financing and government approvals, sudden and dramatic changes in their stock price, and adverse effects resulting from government regulation. A biotechnology company’s valuation can also be greatly affected if one of its products proves unsafe, ineffective or unprofitable.
T-REX 2X LONG GPCR DAILY TARGET ETF | Biotechnology Industry Risk, Biotechnology Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Biotechnology Industry Risk. Biotechnology companies are subject to various risks, including the loss or impairment of patents or intellectual property rights and significant costs associated with developing, procuring and/or marketing of new drugs, products or technologies. Biotechnology companies may also experience difficulties obtaining financing and government approvals, sudden and dramatic changes in their stock price, and adverse effects resulting from government regulation. A biotechnology company’s valuation can also be greatly affected if one of its products proves unsafe, ineffective or unprofitable.
T-REX 2X LONG GPCR 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 GPCR 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 GPCR DAILY TARGET ETF | ETF Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Investing Risk. The Fund may invest in other ETFs for cash management purposes. As a result, the Fund will be subject to the risks associated with the underlying ETFs in which it invests and the securities held by those ETFs. These risks include investment risk related to the underlying portfolio holdings, as well as structural risks of ETFs, such as market price fluctuations, trading at prices above or below net asset value, limited secondary market liquidity, and potential trading halts. Investments in ETFs also involve the layering of expenses, as shareholders of the Fund will indirectly bear a portion of the operating expenses of the underlying ETFs in addition to the Fund's own expenses. To the extent the Fund invests in ETFs within the same group of investment companies, potential conflicts of interest may arise. The performance of the Fund may be adversely affected by the performance of the underlying ETFs and their portfolio investments.
T-REX 2X LONG GPCR 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 GPCR 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 GPCR. 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 GPCR value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the GPCR. Under such circumstances, the market for GPCR 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 GPCR and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for GPCR 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 GPCR and correlated derivative instruments.
T-REX 2X LONG GPCR 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 GPCR and may incur substantial losses. If there is a significant intra-day market event and/or GPCR 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 the Exchange and incur significant losses.
T-REX 2X LONG GPCR 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 GPCR does not provide leveraged exposure to GPCR and, as a result, if the Fund invests directly in common stock of GPCR to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG GPCR 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 GPCR 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 GPCR 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 GPCR 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 GPCR 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 GPCR 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 GPCR 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 GPCR 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 GPCR 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 GPCR 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 GPCR 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 IWC 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 IWC’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 effects of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of IWC during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how IWC 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) IWC volatility; b) IWC 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 IWC. 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 IWC volatility and IWC performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to IWC; (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 IWC.

During periods of higher IWC volatility, the volatility of IWC may affect the Fund’s return as much as, or more than, the return of IWC. The effects of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of IWC 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 IWC provided no return over a one-year period during which IWC 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 IWC’s return is flat. For instance, if IWC’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 IWC 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 IWC. 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%

IWC’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 24.90%. IWC’s annualized daily volatility rates were as follows:

2021    25.33%
2022    27.53%
2023    21.44%
2024    23.94%
2025    25.91%

Volatility for a shorter period of time may have been substantially higher.

IWC’s annualized performance for the five-year period ended December 31, 2025 was 5.85%. Historical volatility and performance are not indications of what IWC volatility and performance will be in the future. IWC’s share price may be more volatile, and may fluctuate more than the market. By way of example, currently IWC’s 52-week high share price was $176.74 on January 22, 2026 , and its 52-week low share price was $95.25 on April 7, 2025. IWC’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 IWC 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 IWC 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 IWC, 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 IWC 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 IWC does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with IWC 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 IWC 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 small 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 IWC 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 IWC, 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 IWC 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 IWC 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 IWC 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 IWC at the market close on the first trading day and the value of IWC at the time of purchase. If IWC gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if IWC 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 IWC.

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 IWC 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 IWC and therefore achieve its daily leveraged investment objective. The Fund’s exposure to IWC is impacted by IWC’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to IWC at the end of each day. The possibility of the Fund being materially over- or under-exposed to IWC increases on days when IWC 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) IWC. 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 IWC. 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 IWC. 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 IWC. Any of these factors could decrease the correlation between the performance of the Fund and IWC and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG IWC 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 IWC DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. IWC 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 IWC and make no representation as to the performance of IWC. Investing in the Fund is not equivalent to investing in IWC. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to IWC.
T-REX 2X LONG IWC 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 IWC 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 IWC DAILY TARGET ETF | ETF Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Investing Risk. The Fund may invest in other ETFs for cash management purposes. As a result, the Fund will be subject to the risks associated with the underlying ETFs in which it invests and the securities held by those ETFs. These risks include investment risk related to the underlying portfolio holdings, as well as structural risks of ETFs, such as market price fluctuations, trading at prices above or below net asset value, limited secondary market liquidity, and potential trading halts. Investments in ETFs also involve the layering of expenses, as shareholders of the Fund will
indirectly bear a portion of the operating expenses of the underlying ETFs in addition to the Fund's own expenses. To the extent the Fund invests in ETFs within the same group of investment companies, potential conflicts of interest may arise. The performance of the Fund may be adversely affected by the performance of the underlying ETFs and their portfolio investments.
T-REX 2X LONG IWC 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 IWC. 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 IWC value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the IWC. Under such circumstances, the market for IWC 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 IWC and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for IWC 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 IWC and correlated derivative instruments.
T-REX 2X LONG IWC 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 IWC and may incur substantial losses. If there is a significant intra-day market event and/or IWC 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 the Exchange and incur significant losses.
T-REX 2X LONG IWC DAILY TARGET ETF | Equity Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk. Publicly issued equity securities, including shares, 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 IWC does not provide leveraged exposure to IWC and, as a result, if the Fund invests directly in shares of IWC to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG IWC 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 IWC 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 IWC 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 IWC 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 IWC 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 IWC 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 IWC 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 IWC 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 IWC 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 IWC DAILY TARGET ETF | IWC Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] IWC Investing Risk. The Fund seeks 200% exposure to IWC, which is another ETF. The value of an investment in the Fund is based on the performance of IWC. IWC may change its investment goals, policies or practices and there can be no assurance that IWC will achieve its goal. Because the Fund seeks exposure to IWC, shareholders indirectly bear a proportionate share of the expenses charged by IWC, which impacts the Fund’s performance. The principal risks of an investment in the Fund include the principal risks of investing in IWC, including Market Risk, Equity Securities Risk, and Micro-Capitalization Company Risk.
T-REX 2X LONG IWC DAILY TARGET ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund entails risk. 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 IWC 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 LITE 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 LITE’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 LITE during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how LITE 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) LITE volatility; b) LITE 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 LITE. 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 LITE volatility and LITE performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to LITE; (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 LITE.

During periods of higher LITE volatility, the volatility of LITE may affect the Fund’s return as much as, or more than, the return of LITE. 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 LITE 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 LITE provided no return over a one-year period during which LITE 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 LITE’s return is flat. For instance, if LITE’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 LITE 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 LITE. 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%

LITE’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 53.85%. LITE’s annualized daily volatility rates were as follows:

2021    37.59%
2022    44.71%
2023    43.66%
2024    54.97%
2025    78.05%

Volatility for a shorter period of time may have been substantially higher.

LITE’s annualized performance for the five-year period ended December 31, 2025 was 31.18%. Historical volatility and performance are not indications of what LITE volatility and performance will be in the future. LITE’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 LITE is $599.50 on February 9, 2026 and the 52-week low stock price for LITE is $45.65, which occurred on April 4, 2025. LITE’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 LITE 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 LITE 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 LITE, 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 LITE 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 LITE does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with LITE 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 LITE 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 small 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 LITE 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 LITE, 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 LITE 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 LITE 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 LITE 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 LITE at the market close on the first trading day and the value of LITE at the time of purchase. If LITE gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if LITE 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 LITE.

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 LITE 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 LITE and therefore achieve its daily leveraged investment objective. The Fund’s exposure to LITE is impacted by LITE’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to LITE at the end of each day. The possibility of the Fund being materially over- or under-exposed to LITE increases on days when LITE 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) LITE. 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 LITE. 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 LITE. 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 LITE. Any of these factors could decrease the correlation between the performance of the Fund and LITE and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG LITE 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 LITE DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Lumentum Holdings 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 Lumentum Holdings Inc. and make no representation as to the performance of LITE. Investing in the Fund is not equivalent to investing in LITE. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to LITE.
T-REX 2X LONG LITE 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 LITE 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 Lumentum Holdings Inc. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Lumentum Holdings 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, LITE is assigned to the communication equipment industry.

•Communication Equipment Industry Risk. Communication equipment companies can be significantly affected by competitive pressures, rapid technological change, evolving industry standards, global supply chain dependencies, and fluctuations in demand from network operators, enterprises, and consumers. The market for products produced by communication equipment companies is characterized by frequent innovation, short product life cycles, cyclical capital spending by customers, and sensitivity to economic and geopolitical conditions. The success of communication equipment companies depends in substantial part on their ability to anticipate technological shifts, develop products that meet emerging standards, manage complex supply chains, and provide reliable technical support. An unexpected change in regulatory requirements, delays in the deployment of next-generation networks, supply shortages, or rapid product obsolescence could have a material adverse effect on a participant’s operating results. Many communication equipment companies rely on patents, proprietary technologies, and global distribution arrangements to support their businesses. There can be no assurance that such protections and arrangements will be adequate to prevent competitive disadvantages or that rivals will not develop products that are substantially equivalent or superior.
T-REX 2X LONG LITE 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 LITE 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 LITE DAILY TARGET ETF | ETF Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Investing Risk. The Fund may invest in other ETFs for cash management purposes. As a result, the Fund will be subject to the risks associated with the underlying ETFs in which it invests and the securities held by those ETFs. These risks include investment risk related to the underlying portfolio holdings, as well as structural risks of ETFs, such as market price fluctuations, trading at prices above or below net asset value, limited secondary market liquidity, and potential trading halts. Investments in ETFs also involve the layering of expenses, as shareholders of the Fund will indirectly bear a portion of the operating expenses of the underlying ETFs in addition to the Fund's own expenses. To the extent the Fund invests in ETFs within the same group of investment companies, potential conflicts of interest may arise. The performance of the Fund may be adversely affected by the performance of the underlying ETFs and their portfolio investments.
T-REX 2X LONG LITE 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 LITE. 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 LITE value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the LITE. Under such circumstances, the market for LITE 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 LITE and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for LITE 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 LITE and correlated derivative instruments.
T-REX 2X LONG LITE 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 LITE and may incur substantial losses. If there is a significant intra-day market event and/or LITE 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 the Exchange and incur significant losses.
T-REX 2X LONG LITE 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 LITE does not provide leveraged exposure to LITE and, as a result, if the Fund invests directly in common stock of LITE to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG LITE 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 LITE 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 LITE 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 LITE 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 LITE 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 LITE 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 LITE 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 LITE 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 LITE 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 LITE DAILY TARGET ETF | LITE Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
LITE Investing Risk. Issuer-specific attributes may cause an investment in Lumentum Holdings (“LITE”) 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, LITE faces risks unique to its operations as a provider of optical and photonic products used in communications networks, cloud and data center infrastructure, commercial lasers, and 3D sensing applications. These risks include, among others, fluctuations in demand from telecommunications, datacom, and cloud customers; rapid technological
change and product obsolescence; dependence on a limited number of large customers; pricing pressures and competitive dynamics; manufacturing complexities and supply-chain disruptions; reliance on specialized components and materials that may experience shortages or cost increases; product quality or reliability issues; and the ability to successfully integrate acquisitions and manage international operations. LITE is also exposed to risks associated with global economic conditions, trade restrictions, export controls, and geopolitical developments that may affect its customers or supply chain. The trading price of LITE’s common stock has been volatile and may continue to fluctuate significantly based on changes in customer spending cycles, industry conditions, financial results, or investor sentiment.
T-REX 2X LONG LITE 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 LITE DAILY TARGET ETF | Industry Concentration Risk, Communication Equipment Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Communication Equipment Industry Risk. Communication equipment companies can be significantly affected by competitive pressures, rapid technological change, evolving industry standards, global supply chain dependencies, and fluctuations in demand from network operators, enterprises, and consumers. The market for products produced by communication equipment companies is characterized by frequent innovation, short product life cycles, cyclical capital spending by customers, and sensitivity to economic and geopolitical conditions. The success of communication equipment companies depends in substantial part on their ability to anticipate technological shifts, develop products that meet emerging standards, manage complex supply chains, and provide reliable technical support. An unexpected change in regulatory requirements, delays in the deployment of next-generation networks, supply shortages, or rapid product obsolescence could have a material adverse effect on a participant’s operating results. Many communication equipment companies rely on patents, proprietary technologies, and global distribution arrangements to support their businesses. There can be no assurance that such protections and arrangements will be adequate to prevent competitive disadvantages or that rivals will not develop products that are substantially equivalent or superior.
T-REX 2X LONG LITE 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 LITE 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 LITE 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 PAAS 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 PAAS’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 PAAS during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how PAAS 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) PAAS volatility; b) PAAS 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 PAAS. 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 PAAS volatility and PAAS performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to PAAS; (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 PAAS.

During periods of higher PAAS volatility, the volatility of PAAS may affect the Fund’s return as much as, or more than, the return of PAAS. 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 PAAS 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 PAAS provided no return over a one-year period during which PAAS 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 PAAS’s return is flat. For instance, if PAAS’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 PAAS 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 PAAS. 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%

PAAS’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 47.51%. PAAS’s annualized daily volatility rates were as follows:

2021    48.13%
2022    51.12%
2023    39.93%
2024    46.97%
2025    50.41%

Volatility for a shorter period of time may have been substantially higher.

PAAS’s annualized performance for the five-year period ended December 31, 2025 was 8.46%. Historical volatility and performance are not indications of what PAAS volatility and performance will be in the future. PAAS’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 PAAS is $69.99 on January 26, 2026 and the 52-week low stock price for PAAS is $20.55, which occurred on April 7, 2025. PAAS’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 PAAS 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 PAAS 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 PAAS, 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 PAAS 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 PAAS does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with PAAS 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 PAAS 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 small 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 PAAS 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 PAAS, 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 PAAS 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 PAAS 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 PAAS 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 PAAS at the market close on the first trading day and the value of PAAS at the time of purchase. If PAAS gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if PAAS 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 PAAS.

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 PAAS 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 PAAS and therefore achieve its daily leveraged investment objective. The Fund’s exposure to PAAS is impacted by PAAS’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to PAAS at the end of each day. The possibility of the Fund being materially over- or under-exposed to PAAS increases on days when PAAS 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) PAAS. 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 PAAS. 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 PAAS. 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 PAAS. Any of these factors could decrease the correlation between the performance of the Fund and PAAS and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG PAAS 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 PAAS DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Pan American Silver 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 Pan American Silver Corp and make no representation as to the performance of PAAS. Investing in the Fund is not equivalent to investing in PAAS. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to PAAS.
T-REX 2X LONG PAAS 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 PAAS 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 PAAS 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 PAAS DAILY TARGET ETF | ETF Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Investing Risk. The Fund may invest in other ETFs for cash management purposes. As a result, the Fund will be subject to the risks associated with the underlying ETFs in which it invests and the securities held by those ETFs. These risks include investment risk related to the underlying portfolio holdings, as well as structural risks of ETFs, such as market price fluctuations, trading at prices above or below net asset value, limited secondary market liquidity, and potential trading halts. Investments in ETFs also involve the layering of expenses, as shareholders of the Fund will indirectly bear a portion of the operating expenses of the underlying ETFs in addition to the Fund's own expenses. To the extent the Fund invests in ETFs within the same group of investment companies, potential conflicts of interest may arise. The performance of the Fund may be adversely affected by the performance of the underlying ETFs and their portfolio investments.
T-REX 2X LONG PAAS 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 PAAS. 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 PAAS value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the PAAS. Under such circumstances, the market for PAAS 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 PAAS and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for PAAS 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 PAAS and correlated derivative instruments.
T-REX 2X LONG PAAS 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 PAAS and may incur substantial losses. If there is a significant intra-day market event and/or PAAS 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 the Exchange and incur significant losses.
T-REX 2X LONG PAAS 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 PAAS does not provide leveraged exposure to PAAS and, as a result, if the Fund invests directly in common stock of PAAS to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG PAAS 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 PAAS 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 PAAS 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 PAAS 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 PAAS 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 PAAS 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 PAAS 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 PAAS 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 PAAS 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 PAAS DAILY TARGET ETF | Industry Concentration Risk, Communication Equipment Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Industry Concentration Risk. The Fund will be concentrated in the industry to which Pan American Silver Corp is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Pan American Silver 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, PAAS is assigned to the gold industry.

•Gold Industry Risk. Gold companies can be significantly affected by fluctuations in the price of gold, changes in global economic conditions, government monetary policies, geopolitical events, and variations in production costs. The market for products produced by gold companies is characterized by sensitivity to interest rates, inflation expectations, currency exchange rates, and investor demand for precious metals as a store of value. The success of gold companies depends in substantial part on their ability to maintain efficient exploration, extraction, and production operations, manage reserve quality, and comply with environmental and safety regulations. An unexpected decline in gold prices, increase in operating or regulatory costs, or disruption in mining operations due to political instability or natural events could have a material adverse effect on a participant’s operating results. Many gold companies rely on access to proven reserves, favorable government relations, and stable labor conditions to sustain profitability. There can be no assurance that such advantages will continue or that competitors will not develop or acquire access to deposits that are substantially equivalent or superior.
T-REX 2X LONG PAAS 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 PAAS DAILY TARGET ETF | PAAS Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
PAAS Investing Risk. Issuer-specific attributes may cause an investment in Pan American Silver Corp. (“PAAS”) 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, PAAS faces risks unique to its operations as a precious metals mining company with producing and development-stage assets in multiple international jurisdictions. These risks include, among others, volatility in the market prices of silver, gold, and other metals; uncertainty in mineral reserve and resource estimates; operational risks inherent in mining and processing activities, including equipment failures, geotechnical challenges, environmental incidents, and production interruptions; permitting and regulatory risks; and the need to successfully develop, expand, or integrate mining projects and acquired assets. PAAS is also subject to risks associated with operating in foreign jurisdictions, including political, economic, legal, tax, environmental, and community-relations risks, as well as labor disruptions, energy and consumables cost inflation, and supply-chain constraints. Because the company’s revenues and cash flows are largely dependent on commodity prices and production levels, its financial performance and stock price may fluctuate significantly in response to changes in global macroeconomic conditions, precious metals markets, and investor sentiment. The trading price of PAAS’s common stock has been volatile and may continue to experience significant fluctuations.
T-REX 2X LONG PAAS 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 PAAS DAILY TARGET ETF | Industry Concentration Risk, Gold Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Gold Industry Risk. Gold companies can be significantly affected by fluctuations in the price of gold, changes in global economic conditions, government monetary policies, geopolitical events, and variations in production costs. The market for products produced by gold companies is characterized by sensitivity to interest rates, inflation expectations, currency exchange rates, and investor demand for precious metals as a store of value. The success of gold companies depends in substantial part on their ability to maintain efficient exploration, extraction, and production operations, manage reserve quality, and comply with environmental and safety regulations. An unexpected decline in gold prices, increase in operating or regulatory costs, or disruption in mining operations due to political instability or natural events could have a material adverse effect on a participant’s operating results. Many gold companies rely on access to proven reserves, favorable government relations, and stable labor conditions to sustain profitability. There can be no assurance that such advantages will continue or that competitors will not develop or acquire access to deposits that are substantially equivalent or superior.
T-REX 2X LONG PAAS 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 PAAS 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 finan
T-REX 2X LONG PAAS DAILY TARGET ETF | Non-Diversification Risk 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 PAAS 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. The Fund is not a complete investment program.
T-REX 2X LONG SNDK 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 SNDK’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 effects of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of SNDK during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how SNDK 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) SNDK volatility; b) SNDK 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 SNDK. 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 SNDK volatility and SNDK performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to SNDK; (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 SNDK.

During periods of higher SNDK volatility, the volatility of SNDK may affect the Fund’s return as much as, or more than, the return of SNDK. The effects of compounding will impact each shareholder differently depending on the period of time an investment in the Fund is held and the volatility of SNDK 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 SNDK provided no return over a one-year period during which SNDK 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 SNDK’s return is flat. For instance, if SNDK’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 SNDK 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 SNDK. 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%

SNDK launched in February 2025 and does not have a full five-year operating history. The volatility shown reflects data from launch through December 31, 2025, annualized for comparison purposes. SNDK’s annualized historical daily volatility rate for the period ended December 31, 2025 was 96.07%. SNDK’s annualized daily volatility rates were as follows:

2025 96.07%

Volatility for a shorter period of time may have been substantially higher.

SNDK’s annualized performance for the period ended December 31, 2025 was 753.93%. Historical volatility and performance are not indications of what SNDK volatility and performance will be in the future. SNDK’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 SNDK is $725.00 on February 3, 2026 and the 52-week low stock price for SNDK is $27.89, which occurred on April 7, 2025. SNDK’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 SNDK 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 SNDK 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 SNDK, 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 SNDK 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 SNDK does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with SNDK 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 SNDK 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 small 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 SNDK 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 SNDK, 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 SNDK 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 SNDK 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 SNDK 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 SNDK at the market close on the first trading day and the value of SNDK at the time of purchase. If SNDK gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if SNDK 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 SNDK.

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 SNDK 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 SNDK and therefore achieve its daily leveraged investment objective. The Fund’s exposure to SNDK is impacted by SNDK’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to SNDK at the end of each day. The possibility of the Fund being materially over- or under-exposed to SNDK increases on days when SNDK 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) SNDK. 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 SNDK. 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 SNDK. 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 SNDK. Any of these factors could decrease the correlation between the performance of the Fund and SNDK and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG SNDK 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 SNDK DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Sandisk 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 Sandisk Corporation and make no representation as to the performance of SNDK. Investing in the Fund is not equivalent to investing in SNDK. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to SNDK.
T-REX 2X LONG SNDK 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 SNDK 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 Sandisk Corporation is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Sandisk 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, SNDK is assigned to the computer hardware industry.

•Computer Hardware Company Risk. The performance of companies operating in the computer hardware industry, and consequently the Fund’s performance, is subject to risks inherent in the technology sector and the hardware market in particular. The value of computer hardware companies may be particularly vulnerable to rapid technological advancements, short product life cycles, pricing pressures, and the risk of product obsolescence. These companies often depend on complex global supply chains for components such as semiconductors, processors, and memory, making them susceptible to supply shortages, geopolitical tensions, trade restrictions, and fluctuations in raw material and manufacturing costs. Competition is intense, both domestically and internationally, including from manufacturers with lower production costs, which may compress margins. In addition, demand for computer hardware is closely tied to capital spending, enterprise IT budgets, and consumer discretionary spending, all of which may fluctuate with economic conditions. Computer hardware companies are also heavily dependent on intellectual property rights and proprietary technologies, the loss, impairment, or infringement of which may adversely affect profitability. Stock prices in this industry, particularly those of smaller or less diversified companies, may be more volatile and less liquid than the broader market.
T-REX 2X LONG SNDK 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 SNDK 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 SNDK DAILY TARGET ETF | ETF Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Investing Risk. The Fund may invest in other ETFs for cash management purposes. As a result, the Fund will be subject to the risks associated with the underlying ETFs in which it invests and the securities held by those ETFs. These risks include investment risk related to the underlying portfolio holdings, as well as structural risks of ETFs, such as market price fluctuations, trading at prices above or below net asset value, limited secondary market liquidity, and potential trading halts. Investments in ETFs also involve the layering of expenses, as shareholders of the Fund will indirectly bear a portion of the operating expenses of the underlying ETFs in addition to the Fund's own expenses. To the extent the Fund invests in ETFs within the same group of investment companies, potential conflicts of interest may arise. The performance of the Fund may be adversely affected by the performance of the underlying ETFs and their portfolio investments.
T-REX 2X LONG SNDK 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 SNDK. 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 SNDK value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the SNDK. Under such circumstances, the market for SNDK 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 SNDK and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for SNDK 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 SNDK and correlated derivative instruments.
T-REX 2X LONG SNDK 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 SNDK and may incur substantial losses. If there is a significant intra-day market event and/or SNDK 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 the Exchange and incur significant losses.
T-REX 2X LONG SNDK 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 SNDK does not provide leveraged exposure to SNDK and, as a result, if the Fund invests directly in common stock of SNDK to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG SNDK 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 SNDK 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 SNDK 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 SNDK 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 SNDK 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 SNDK 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 SNDK 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 SNDK 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 SNDK 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 SNDK 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 SNDK 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 SNDK DAILY TARGET ETF | SNDK Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
SNDK Investing Risk. Issuer-specific attributes may cause an investment in SNDK 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, SNDK faces risks unique to its operations as a developer and manufacturer of NAND flash memory and data storage solutions for consumer, enterprise, and cloud applications. These risks include, among others, rapid technological change and product obsolescence; significant pricing volatility and intense competition in the NAND flash and memory markets; cyclicality in demand for storage products; dependence on successful product innovation, development, and timely market introduction; and reliance on strategic manufacturing partners and complex global supply chains that may experience capacity constraints, yield challenges, component shortages, trade restrictions, or increased production costs. SNDK is also subject to risks related to the protection and enforcement of its intellectual property, capital-intensive manufacturing requirements, customer concentration, and global economic conditions affecting technology spending. Because the company operates in highly competitive and cyclical semiconductor and storage markets, its financial results and stock price may fluctuate significantly based on memory pricing trends, customer purchasing patterns, industry conditions, and investor sentiment. The trading price of SNDK’s common stock has been volatile and may continue to experience significant fluctuations.
T-REX 2X LONG SNDK DAILY TARGET ETF | Industry Concentration Risk, Computer Hardware Company Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Computer Hardware Company Risk. The performance of companies operating in the computer hardware industry, and consequently the Fund’s performance, is subject to risks inherent in the technology sector and the hardware market in particular. The value of computer hardware companies may be particularly vulnerable to rapid technological advancements, short product life cycles, pricing pressures, and the risk of product obsolescence. These companies often depend on complex global supply chains for components such as semiconductors, processors, and memory, making them susceptible to supply shortages, geopolitical tensions, trade restrictions, and fluctuations in raw material and manufacturing costs. Competition is intense, both domestically and internationally, including from manufacturers with lower production costs, which may compress margins. In addition, demand for computer hardware is closely tied to capital spending, enterprise IT budgets, and consumer discretionary spending, all of which may fluctuate with economic conditions. Computer hardware companies are also heavily dependent on intellectual property rights and proprietary technologies, the loss, impairment, or infringement of which may adversely affect profitability. Stock prices in this industry, particularly those of smaller or less diversified companies, may be more volatile and less liquid than the broader market.
T-REX 2X LONG SNDK 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 SNDK 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 WLTH 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 WLTH’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 WLTH during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how WLTH 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) WLTH volatility; b) WLTH 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 WLTH. 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 WLTH volatility and WLTH performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to WLTH; (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 WLTH.

During periods of higher WLTH volatility, the volatility of WLTH may affect the Fund’s return as much as, or more than, the return of WLTH. 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 WLTH 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 WLTH provided no return over a one-year period during which WLTH 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 WLTH’s return is flat. For instance, if WLTH’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 WLTH 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 WLTH. 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%

WLTH launched in December 2025 and does not have a full five-year operating history. The volatility shown reflects data from launch through December 31, 2025, annualized for comparison purposes. WLTH’s annualized historical daily volatility rate for the period ended December 31, 2025 was 48.34%. WLTH’s annualized daily volatility rates were as follows:

2025 48.34%

Volatility for a shorter period of time may have been substantially higher.

WLTH’s annualized performance for the period ended December 31, 2025 was -41.87%. Historical volatility and performance are not indications of what WLTH volatility and performance will be in the future. WLTH’s stock price may be more volatile, and may fluctuate more than the market. By way of example, currently WLTH’s high stock price since inception on December 12, 2025 was $14.88 on December 12, 2025, and its low stock price since inception on December 12, 2025 was $7.20 on February 12, 2026. WLTH’s high and low stock price since its inception on December 12, 2025 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 WLTH 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 WLTH 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 WLTH, 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 WLTH 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 WLTH does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with WLTH 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 WLTH 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 small 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 WLTH 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 WLTH, 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 WLTH 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 WLTH 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 WLTH 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 WLTH at the market close on the first trading day and the value of WLTH at the time of purchase. If WLTH gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if WLTH 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 WLTH.

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 WLTH 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 WLTH and therefore achieve its daily leveraged investment objective. The Fund’s exposure to WLTH is impacted by WLTH’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to WLTH at the end of each day. The possibility of the Fund being materially over- or under-exposed to WLTH increases on days when WLTH 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) WLTH. 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 WLTH. 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 WLTH. 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 WLTH. Any of these factors could decrease the correlation between the performance of the Fund and WLTH and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG WLTH 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 WLTH DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Wealthfront 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 Wealthfront Corporation and make no representation as to the performance of WLTH. Investing in the Fund is not equivalent to investing in WLTH. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to WLTH.
T-REX 2X LONG WLTH 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 WLTH 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 Wealthfront Corporation is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Wealthfront 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, WLTH is assigned to the financial sector and the financial services industry.

•Financial Services Industry Risk. Financial services companies can be significantly affected by changes in interest rates, credit conditions, economic cycles, regulatory developments, and market volatility. The market for products and services provided by financial services companies is characterized by sensitivity to monetary policy, capital market fluctuations, borrower creditworthiness, and investor confidence. The success of financial services companies depends in substantial part on their ability to manage credit, market, operational, and liquidity risks; maintain adequate capital and funding sources; and comply with complex and evolving regulatory frameworks. An unexpected deterioration in economic conditions, decline in asset values, increase in loan defaults, or adverse regulatory actions could have a material adverse effect on a participant’s operating results. Many financial services companies rely on leverage to enhance returns and are therefore particularly sensitive to changes in funding costs and market liquidity. There can be no assurance that access to capital will remain available on favorable terms or that financial market conditions will not adversely affect profitability or solvency.
T-REX 2X LONG WLTH 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 WLTH 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 WLTH DAILY TARGET ETF | ETF Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Investing Risk. The Fund may invest in other ETFs for cash management purposes. As a result, the Fund will be subject to the risks associated with the underlying ETFs in which it invests and the securities held by those ETFs. These risks include investment risk related to the underlying portfolio holdings, as well as structural risks of ETFs, such as market price fluctuations, trading at prices above or below net asset value, limited secondary market liquidity, and potential trading halts. Investments in ETFs also involve the layering of expenses, as shareholders of the Fund will indirectly bear a portion of the operating expenses of the underlying ETFs in addition to the Fund's own expenses. To the extent the Fund invests in ETFs within the same group of investment companies, potential conflicts of interest may arise. The performance of the Fund may be adversely affected by the performance of the underlying ETFs and their portfolio investments.
T-REX 2X LONG WLTH 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 WLTH. 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 WLTH value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the WLTH. Under such circumstances, the market for WLTH 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 WLTH and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for WLTH 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 WLTH and correlated derivative instruments.
T-REX 2X LONG WLTH 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 WLTH and may incur substantial losses. If there is a significant intra-day market event and/or WLTH 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 the Exchange and incur significant losses.
T-REX 2X LONG WLTH 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 WLTH does not provide leveraged exposure to WLTH and, as a result, if the Fund invests directly in common stock of WLTH to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG WLTH 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 WLTH 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 WLTH 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 WLTH 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 WLTH 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 WLTH 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 WLTH 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 WLTH 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 WLTH 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 WLTH DAILY TARGET ETF | WLTH Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
WLTH Investing Risk. Issuer-specific attributes may cause an investment in WLTH 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, WLTH faces risks unique to its operations as a technology-driven financial services company providing automated investment management, financial planning tools, cash management services, and digital investment products. WLTH commenced its initial public offering in December 2025 and, as a company that recently began trading publicly, with a limited trading history, its common stock may be subject to heightened volatility, limited publicly available historical information, and potentially abnormal returns. In addition, the expiration of lock-up periods or the ability of existing shareholders and insiders to sell substantial amounts of shares in the public market could result in increased supply of shares and potential dilution or downward pressure on the stock price.

WLTH’s business is sensitive to fluctuations in financial markets, as its revenues are largely dependent on client asset levels and activity-based fees. Periods of market volatility, declines in equity or fixed income markets, or reduced investor engagement may adversely affect assets under management and revenues. To the extent WLTH offers or facilitates exposure to cryptocurrency-related investment products, it may also be affected by the significant volatility, liquidity constraints, valuation uncertainty, cybersecurity risks, and evolving regulatory landscape associated with digital assets and cryptocurrency markets. WLTH operates in a highly competitive and rapidly evolving fintech industry characterized by intense competition from traditional financial institutions, asset managers, broker-dealers, and other digital advisory platforms, which may result in pricing pressures, increased customer acquisition costs, and margin compression. The company is subject to extensive and evolving regulation relating to investment advisory services, brokerage activities, cash management programs, digital assets, data privacy, consumer protection, and banking
relationships, and adverse regulatory developments or compliance failures could materially impact its operations. WLTH also relies on proprietary algorithms and digital infrastructure and is exposed to cybersecurity threats, data breaches, technology failures, and dependence on third-party custodians, broker-dealers, and banking partners. Because its business model is closely tied to market conditions, technological innovation, and regulatory developments, WLTH’s financial performance and stock price may fluctuate significantly. The trading price of WLTH’s common stock has been volatile and may continue to experience significant fluctuations.
T-REX 2X LONG WLTH DAILY TARGET ETF | Financials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Financials Sector Risk. Financial services companies are subject to extensive governmental regulation which may limit both the amounts and types of loans and other financial commitments they can make, the interest rates and fees they can charge, the scope of their activities, the prices 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 or due to increased competition. Certain events in the financial sector may cause an unusually high degree of volatility in the financial markets, both domestic and foreign, and cause certain financial services companies to incur large losses. Securities of financial services companies may experience a dramatic decline in value when such companies experience substantial declines in the valuations of their assets, take action to raise capital (such as the issuance of debt or equity securities), or cease operations. Credit losses resulting from financial difficulties of borrowers and financial losses associated with investment activities can negatively impact the sector. Adverse economic, business or political developments affecting real estate could have a major effect on the value of real estate securities (which include REITs). Declining real estate values could adversely affect financial institutions engaged in mortgage finance or other lending or investing activities directly or indirectly connected to the value of real estate.
T-REX 2X LONG WLTH DAILY TARGET ETF | Financial Services Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Financial Services Industry Risk. Financial services companies can be significantly affected by changes in interest rates, credit conditions, economic cycles, regulatory developments, and market volatility. The market for products and services provided by financial services companies is characterized by sensitivity to monetary policy, capital market fluctuations, borrower creditworthiness, and investor confidence. The success of financial services companies depends in substantial part on their ability to manage credit, market, operational, and liquidity risks; maintain adequate capital and funding sources; and comply with complex and evolving regulatory frameworks. An unexpected deterioration in economic conditions, decline in asset values, increase in loan defaults, or adverse regulatory actions could have a material adverse effect on a participant’s operating results. Many financial services companies rely on leverage to enhance returns and are therefore particularly sensitive to changes in funding costs and market liquidity. There can be no assurance that access to capital will remain available on favorable terms or that financial market conditions will not adversely affect profitability or solvency.
T-REX 2X LONG WLTH 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 WLTH 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 WLTH 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 WVE 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 WVE’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 WVE during the shareholder’s holding period of an investment in the Fund.

The chart below provides examples of how WVE 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) WVE volatility; b) WVE 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 WVE. 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 WVE volatility and WVE performance over a one-year period. Performance shown in the chart assumes that: (i) no dividends were paid with respect to WVE; (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 WVE.

During periods of higher WVE volatility, the volatility of WVE may affect the Fund’s return as much as, or more than, the return of WVE. 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 WVE 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 WVE provided no return over a one-year period during which WVE 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 WVE’s return is flat. For instance, if WVE’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 WVE 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 WVE. 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%

WVE’s annualized historical daily volatility rate for the five-year period ended December 31, 2025 was 113.54%. WVE’s annualized daily volatility rates were as follows:

2021    69.01%
2022    113.76%
2023    74.18%
2024    118.48%
2025    165.29%    

Volatility for a shorter period of time may have been substantially higher.

WVE’s annualized performance for the five-year period ended December 31, 2025 was 16.64%. Historical volatility and performance are not indications of what WVE volatility and performance will be in the future. WVE’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 WVE is $21.73 on December 9, 2025 and the 52-week low stock price for WVE is $5.28, which occurred on April 9, 2025. WVE’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 WVE 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 WVE 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 WVE, 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 WVE 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 WVE does not lose all of its value. Leverage will also have the effect of magnifying any differences in the Fund’s correlation with WVE 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 WVE 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 small 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 WVE 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 WVE, 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 WVE 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 WVE 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 WVE 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 WVE at the market close on the first trading day and the value of WVE at the time of purchase. If WVE gains value, the Fund’s net assets will rise by the same amount as the Fund’s exposure. Conversely, if WVE 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 WVE.

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 WVE 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 WVE and therefore achieve its daily leveraged investment objective. The Fund’s exposure to WVE is impacted by WVE’s movement. Because of this, it is unlikely that the Fund will be perfectly exposed to WVE at the end of each day. The possibility of the Fund being materially over- or under-exposed to WVE increases on days when WVE 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) WVE. 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 WVE. 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 WVE. 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 WVE. Any of these factors could decrease the correlation between the performance of the Fund and WVE and may hinder the Fund’s ability to meet its daily leveraged investment objective on or around that day.
T-REX 2X LONG WVE 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 WVE DAILY TARGET ETF | Indirect Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Indirect Investment Risk. Wave Life Sciences 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 Wave Life Sciences Ltd. and make no representation as to the performance of WVE. Investing in the Fund is not equivalent to investing in WVE. Fund shareholders will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to WVE.
T-REX 2X LONG WVE 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 WVE DAILY TARGET ETF | Healthcare Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Healthcare Sector Risk.  The Fund's assets will be concentrated in the healthcare sector, which means the Fund will be more affected by the performance of the healthcare sector than a fund that is more diversified. Companies in the healthcare sector are subject to extensive government regulation and their profitability can be significantly affected by restrictions on government reimbursement for medical expenses, rising costs of medical products and services, pricing
pressure (including price discounting), limited product lines and an increased emphasis on the delivery of healthcare through outpatient services. Companies in the healthcare sector are heavily dependent on obtaining and defending patents, which may be time consuming and costly, and the expiration of patents may also adversely affect the profitability of these companies. Healthcare companies are also subject to extensive litigation based on product liability and similar claims. In addition, their products can become obsolete due to industry innovation, changes in technologies or other market developments. Many new products in the healthcare sector require significant research and development and may be subject to regulatory approvals, all of which may be time consuming and costly with no guarantee that any product will come to market.
T-REX 2X LONG WVE 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 Wave Life Sciences Ltd. is assigned (i.e., hold more than 25% of its total assets in investments that provide exposure to the industry to which Wave Life Sciences 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, WVE is assigned to the biotechnology industry.

•Biotechnology Industry Risk. Biotechnology companies are subject to various risks, including the loss or impairment of patents or intellectual property rights and significant costs associated with developing, procuring and/or marketing of new drugs, products or technologies. Biotechnology companies may also experience difficulties obtaining financing and government approvals, sudden and dramatic changes in their stock price, and adverse effects resulting from government regulation. A biotechnology company’s valuation can also be greatly affected if one of its products proves unsafe, ineffective or unprofitable.
T-REX 2X LONG WVE 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 WVE 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 WVE DAILY TARGET ETF | ETF Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Investing Risk. The Fund may invest in other ETFs for cash management purposes. As a result, the Fund will be subject to the risks associated with the underlying ETFs in which it invests and the securities held by those ETFs. These risks include investment risk related to the underlying portfolio holdings, as well as structural risks of ETFs, such as market price fluctuations, trading at prices above or below net asset value, limited secondary market liquidity, and potential trading halts. Investments in ETFs also involve the layering of expenses, as shareholders of the Fund will indirectly bear a portion of the operating expenses of the underlying ETFs in addition to the Fund's own expenses. To the extent the Fund invests in ETFs within the same group of investment companies, potential conflicts of interest may arise. The performance of the Fund may be adversely affected by the performance of the underlying ETFs and their portfolio investments.
T-REX 2X LONG WVE 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 WVE 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 WVE. 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 WVE value increases or decreases significantly, the Fund may be one of many market participants that are attempting to transact in the WVE. Under such circumstances, the market for WVE 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 WVE and may impact the ability of the Fund to achieve its investment objective.

In certain cases, the market for WVE 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 WVE and correlated derivative instruments.
T-REX 2X LONG WVE 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 WVE and may incur substantial losses. If there is a significant intra-day market event and/or WVE 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 the Exchange and incur significant losses.
T-REX 2X LONG WVE 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 WVE does not provide leveraged exposure to WVE and, as a result, if the Fund invests directly in common stock of WVE to a greater extent, the Fund may not achieve its 200% daily investment objective.
T-REX 2X LONG WVE 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 WVE 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 WVE 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
T-REX 2X LONG WVE 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 WVE 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 WVE 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 WVE 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 WVE 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 WVE 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 WVE 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 WVE DAILY TARGET ETF | WVE Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
WVE Investing Risk. Issuer-specific attributes may cause an investment in Wave Life Sciences Ltd. (“WVE”) 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, WVE faces risks unique to its operations as a clinical-stage biotechnology company. These risks include, among others, substantial uncertainty in the research and development process; delays, failures, or negative results in preclinical studies or clinical trials; difficulties in demonstrating safety and efficacy; evolving regulatory requirements; reliance on third-party contract research organizations and manufacturers; challenges in scaling and validating manufacturing processes for nucleic acid–based therapeutics; the need to obtain significant additional capital to fund operations; risks relating to intellectual property protection and potential patent disputes; competition from other biotechnology and pharmaceutical companies developing alternative genetic medicine platforms; and the ability to attract and retain specialized scientific and executive personnel. Because WVE does not have approved products generating commercial revenue and has incurred and expects to incur significant operating losses for the foreseeable future, its financial condition and stock price may be particularly sensitive to clinical data releases, regulatory developments, financing activities, strategic collaborations, and investor sentiment toward the genetic medicines sector. The trading price of WVE’s common stock has been volatile and may continue to experience significant fluctuations.
T-REX 2X LONG WVE DAILY TARGET ETF | Industry Concentration Risk, Biotechnology Industry Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Biotechnology Industry Risk. Biotechnology companies are subject to various risks, including the loss or impairment of patents or intellectual property rights and significant costs associated with developing, procuring and/or marketing of new drugs, products or technologies. Biotechnology companies may also experience difficulties obtaining financing and government approvals, sudden and dramatic changes in their stock price, and adverse effects resulting from government regulation. A biotechnology company’s valuation can also be greatly affected if one of its products proves unsafe, ineffective or unprofitable.
T-REX 2X LONG WVE 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 WVE 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.