Investment Risks |
Mar. 09, 2026 |
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Bitcoin Investment Risks [Member] | ||||
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| Risk [Text Block] | Bitcoin Investment Risks. The Fund’s indirect investment in bitcoin exposes it to its unique risks. Bitcoin is a type of digital asset in which a record of transactions is maintained and new units of the asset are generated by the computational solution of mathematical problems. Bitcoin’s price is highly volatile, and its market is influenced by the changing bitcoin network, fluctuating acceptance levels, and unpredictable usage trends. Not being a legal tender and operating outside central authority systems like banks, bitcoin faces potential government restrictions. For instance, some countries may limit or ban bitcoin transactions, negatively impacting its market value.
The risks associated with bitcoin include the possibility of fraud, theft, market manipulation, and security breaches in trading platforms. A small group of large bitcoin holders, known as “whales,” can significantly influence bitcoin’s price and may have the ability to manipulate the price. The largely unregulated nature of bitcoin and its trading venues heightens risks of fraudulent activities and market manipulation, which could affect bitcoin’s price. For example, if a group of miners gains control over a majority of the bitcoin network, they could manipulate transactions to their advantage. Historical instances have seen bitcoin trading venues shut down due to fraud or security breaches, often leaving investors without recourse and facing significant losses.
Updates to bitcoin’s software, proposed by developers, can lead to the creation of new digital assets, or “forks,” if not broadly adopted. This can impact bitcoin’s demand and the Fund’s performance. The extreme volatility of bitcoin’s market price can result in shareholder losses. Furthermore, the operation of bitcoin trading platforms may be disrupted or cease altogether due to various issues, further affecting bitcoin’s price and the Fund’s investments.
The value of bitcoin has historically been subject to significant speculation, making trading and investing in bitcoin reliant on market sentiment rather than traditional fundamental analysis.
Bitcoin’s price can be influenced by events unrelated to its security or utility, including instability in other speculative areas of the crypto/blockchain space, potentially leading to substantial declines in its value.
Risks associated with crypto asset trading platforms include fragmentation, regulatory non-compliance, and the possibility of enforcement actions by regulatory authorities, which could impact the valuation of bitcoin-linked derivatives held by the Fund.
The security of the Bitcoin Blockchain (i.e., the decentralized, digital ledger technology that chronologically and publicly records all bitcoin transactions) may be compromised if a single miner or group controls more than 50% of the network’s hashing power, where hashing power refers to the computational capacity used to validate and secure transactions on the blockchain.
Proposed changes to the bitcoin protocol may not be universally adopted, leading to the creation of competing blockchains (forks) with different assets and participants, exemplified by past forks like Bitcoin Cash and Bitcoin SV.
The Bitcoin Blockchain protocol may contain vulnerabilities that attackers could exploit to disrupt its operation, potentially compromising the security and reliability of the network.
Emerging alternative public blockchains, particularly those emphasizing privacy through technologies like zero-knowledge cryptography, pose risks and challenges to the dominance of the Bitcoin Blockchain as a payment system.
Common impediments to adopting the Bitcoin Blockchain as a payment network include slow transaction processing, variability in transaction fees, and the volatility of bitcoin’s price, which may deter widespread adoption by businesses and consumers.
The development and use of “Layer II solutions” are critical for the scalability and functionality of the Bitcoin Blockchain, but they also introduce risks such as off-chain transaction execution, which could affect transparency and security. Layer II solutions are off-chain protocols that improve scalability and reduce transaction costs by processing transactions outside the main blockchain network.
Adoption and use of other blockchains supporting advanced applications like smart contracts present challenges to the dominance of the Bitcoin Blockchain, potentially impacting its long-term relevance and utility in the evolving landscape of blockchain technology. |
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Digital Assets Risk [Member] | ||||
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Digital Asset Markets Risk [Member] | ||||
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Blockchain Technology Risk [Member] | ||||
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Overnight Exposure Risk [Member] | ||||
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| Risk [Text Block] | Overnight Exposure Risk. The Fund differs from most traditional funds and ETFs in that it seeks to provide exposure to bitcoin only during U.S. overnight hours and not during regular U.S. equity market trading hours. As a result, the Fund’s performance is tied solely to bitcoin price movements occurring during the overnight period. Because Shares of the Fund trade on an exchange only during regular market hours, shareholders will not be able to buy or sell Shares during overnight hours when the Fund’s bitcoin exposure may fluctuate in value. Accordingly, investors will not be able to react to overnight price movements until the next regular trading session, which could result in significant differences between the Fund’s NAV and the price at which Shares are bought or sold. The Fund generally establishes its overnight bitcoin exposure near the close of regular U.S. trading hours and reduces or eliminates that exposure near the open of the next trading session. This predictable trading pattern may increase the risk that market participants anticipate the Fund’s transactions (i.e., “frontrunning”), potentially resulting in less favorable execution prices, widened spreads, or increased transaction costs, which could negatively affect performance. Although bitcoin trades continuously, liquidity, market depth, and bid-ask spreads may vary across trading venues and time periods. During periods of heightened volatility, reduced market depth, or rapid price movements—particularly around market close or market open—the Fund may experience increased slippage or wider bid-ask spreads when entering or exiting positions. These conditions could adversely affect performance and increase tracking deviation relative to intended overnight exposure. There is no guarantee that historical differences between overnight and daytime bitcoin returns will persist. Bitcoin’s performance during regular U.S. market hours—when the Fund does not seek exposure—may at times exceed its overnight performance, and the Fund may underperform a strategy that holds bitcoin continuously over a full 24-hour period. Bitcoin’s overnight price movements can be significant, including sharp declines. As a result, the Fund may experience substantial losses during a single overnight period.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Derivatives Risk [Member] | ||||
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| 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 indices. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Index and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Futures Contracts [Member] | ||||
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| Risk [Text Block] | Futures Contracts. Risks of futures contracts include: (i) an imperfect correlation between the value of the futures contract and the underlying asset; (ii) possible lack of a liquid secondary market; (iii) the inability to close a futures contract when desired; (iv) losses caused by unanticipated market movements, which may be unlimited; (v) an obligation for the Fund to make daily cash payments to maintain its required margin, particularly at times when the Fund may have insufficient cash; and (vi) unfavorable execution prices from rapid selling. Unlike equities, which typically entitle the holder to a continuing stake in a corporation, futures contracts normally specify a certain date for settlement in cash based on the reference asset. As the futures contracts approach expiration, they may be replaced by similar contracts that have a later expiration. This process is referred to as “rolling.” If the market for these contracts is in “contango,” meaning that the prices of futures contracts in the nearer months are lower than the price of contracts in the distant months, the sale of the near-term month contract would be at a lower price than the longer-term contract, resulting in a cost to “roll” the futures contract. The actual realization of a potential roll cost will be dependent upon the difference in price of the near and distant contract.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Options Contracts [Member] | ||||
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| Risk [Text Block] | Options Contracts. The use of options contracts 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 security or instrument, including the anticipated volatility, which is affected by fiscal and monetary policies, changes in the actual or implied volatility of the underlying security or instrument, the time remaining until the expiration of the option contract and economic events. 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 security or instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate as the underlying security or instrument. There may at times be an imperfect correlation between the movement in the values of options contracts and the underlying security or instrument, 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. Additionally, as the Fund may continuously maintain indirect exposure to one or more of the underlying securities or instruments through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Swaps [Member] | ||||
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| Risk [Text Block] | Swaps. Swap agreements involve the risk that the party with whom the Fund has entered into the swap will default on its obligation to pay the Fund. Additionally, certain unexpected market events or significant adverse market movements could result in the Fund not holding enough assets to be able to meet its obligations under the agreement. Such occurrences may negatively impact the Fund’s ability to implement its principal investment strategies and could result in losses to the Fund. The risk of loss to the Fund for swap transactions that are entered into on a net basis depends on which party is obligated to pay the net amount to the other party. If the counterparty is obligated to pay the net amount to the Fund, the risk of loss to the Fund is loss of the entire amount that the Fund is entitled to receive. If the Fund is obligated to pay the net amount, the Fund’s risk of loss is generally limited to that net amount. If the swap agreement involves the exchange of the entire principal value of a security, the entire principal value of that security is subject to the risk that the other party to the swap will default on its contractual delivery obligations. In addition, the Fund’s risk of loss also includes any margin at risk in the event of default by the counterparty (in an uncleared swap) or the central counterparty or FCM (in a cleared swap), plus any transaction costs.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Cayman Subsidiary Risk [Member] | ||||
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| Risk [Text Block] | Cayman Subsidiary Risk. By investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary’s investments. The investments held by the Subsidiary are subject to the same economic risks that apply to similar investments if held directly by the Fund. The Subsidiary is not registered under the 1940 Act, and, unless otherwise noted in this Prospectus, is not subject to all the investor protections of the 1940 Act. Changes in the laws of the United States and the Cayman Islands could result in the inability of the Fund and/or the Subsidiary to continue to operate as it does currently and could adversely affect the Fund. For example, the Cayman Islands does not currently impose any income, corporate or capital gains tax or withholding tax on the Subsidiary. If Cayman Islands law changes such that the Subsidiary must pay Cayman Islands taxes, Fund shareholders would likely suffer decreased investment returns. In addition, the Subsidiary is also subject to many of the risks to which the Fund is subject, such as tax risks, commodity related risks, and market and data risks.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Commodity-Linked Derivatives Tax Risk [Member] | ||||
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| Risk [Text Block] | Commodity-Linked Derivatives Tax Risk. The tax treatment of commodity-linked derivative instruments may be adversely affected by changes in legislation, regulations, or other legally binding authority. As a RIC, the Fund must derive at least 90% of its gross income each taxable year from certain qualifying sources of income under the Code. If, as a result of any adverse future legislation, U.S. Treasury regulations, and/or guidance issued by the Internal Revenue Service (the “IRS”), the income of the Fund from certain commodity-linked derivatives, including income from the Fund’s investments in the Subsidiary, were treated as non-qualifying income, the Fund may fail to qualify as RIC and/or be subject to federal income tax at the Fund level. The uncertainty surrounding the treatment of certain derivative instruments under the qualification tests for a RIC may limit the Fund’s use of such derivative instruments.
The Fund intends to limit its investment in the Subsidiary to no more than 25% of the value of its total assets in order to satisfy certain asset diversification requirements for taxation as a regulated investment company. The Fund intends to manage the exposure to the Subsidiary so that the Fund’s investments in the Subsidiary do not exceed 25% of the total assets at the end of any quarter. If the Fund’s investments in the Subsidiary were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Commodity Pool Regulatory Risk [Member] | ||||
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| Risk [Text Block] | Commodity Pool Regulatory Risk. The Fund’s investment exposures will cause it to be deemed to be a commodity pool, thereby subjecting the Fund to regulation under the Commodities Exchange Act of 1936, as amended (the “CEA”) and CFTC rules. The Adviser is registered as a commodity pool operator (“CPO”) and the Fund will be operated in accordance with applicable CFTC rules, as well as the regulatory scheme applicable to registered investment companies. Registration as a CPO imposes additional compliance obligations on the Adviser and the Fund related to additional laws, regulations, and enforcement policies, which could increase compliance costs and may affect the operations and financial performance of the Fund. However, the Fund’s status as a commodity pool and the Adviser’s registration as a CPO are not expected to materially adversely affect the Fund’s ability to achieve its investment objective. The CFTC has not passed on the adequacy of this Prospectus.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Tax Risk [Member] | ||||
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| Risk [Text Block] | Tax Risk. The Fund intends to treat any income received by the Subsidiary as “qualifying income” under the provisions of the Code applicable to RICs. The IRS has issued numerous private letter rulings (“PLRs”) provided to third parties not associated with the Fund or its affiliates (which only those parties may rely on as precedent) concluding that similar arrangements resulted in qualifying income. Many of such PLRs have now been revoked by the IRS. In March of 2019, the IRS published Regulations that concluded that income from a corporation similar to the Subsidiary would be qualifying income. Although the Regulations do not require distributions from the Subsidiary, the Fund intends to cause the Subsidiary to make distributions that would allow the Fund to make timely distributions to its shareholders and to meet the requirement that the Subsidiary have a value not in excess of 25% of the Fund’s value at the close of a quarter. The Fund generally will be required to include in its own taxable income the income of the Subsidiary for a tax year, regardless of whether the Fund receives a distribution of the Subsidiary’s income in that tax year, and this income would nevertheless be subject to the distribution requirement for qualification as a regulated investment company and would be taken into account for purposes of the 4% excise tax. In addition, to comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the investments it holds whose value is determined by reference to a specific underlying asset (i.e., bitcoin) is never 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments whose value is determined by reference to a specific underlying asset were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Counterparty Risk [Member] | ||||
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| Risk [Text Block] | Counterparty Risk. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Underlying Fund Risk [Member] | ||||
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| Risk [Text Block] | Underlying Fund Risk. The Fund’s investment strategy, involving indirect exposure to bitcoin through one or more Bitcoin Underlying Funds, is subject to the risks associated with bitcoin. Shareholders in the Fund bear both their proportionate share of expenses in the Fund and, indirectly, the expenses of the Bitcoin Underlying Funds. |
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Bitcoin Underlying Fund Risks [Member] | ||||
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Potentially No 1940 Act Protections [Member] | ||||
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Reverse Repurchase Agreement Risk [Member] | ||||
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| Risk [Text Block] | Reverse Repurchase Agreement Risk. Similar to borrowing, reverse repurchase agreements provide the Fund with cash for investment purposes, which creates leverage and subjects the Fund to the risks of leverage. Reverse repurchase agreements also involve the risk that the other party may fail to return the securities in a timely manner or at all. The Fund could lose money if it is unable to recover the securities and/or if the value of collateral held by the Fund, including the value of the investments made with cash collateral, is less than the value of securities.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | ETF Risks [Member] | ||||
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| Risk [Text Block] | ETF Risks
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
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| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “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.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Cash Redemption Risk [Member] | ||||
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| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, 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. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Costs of Buying or Selling Shares [Member] | ||||
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Management Risk [Member] | ||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
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In addition, where all or a portion of the Fund’s holdings trade in a market that is closed when the market in which the Fund Shares are listed and trading is open, there may be changes between the last quote from its closed market, and the value of the security during the Fund’s trading day. In addition, please note that this in turn could lead to price differences between the market price of the Fund’s Shares and the underlying value of those Shares.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Trading [Member] | ||||
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| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the 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 Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Economic and Market Risk [Member] | ||||
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| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | High Portfolio Turnover Risk [Member] | ||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | New Fund Risk [Member] | ||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors have a limited track record or history on which to base their investment decisions.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Operational Risk [Member] | ||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund, Adviser, and Sub-Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | ||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Nicholas Bitcoin and Treasuries AfterDark ETF | Risk Lose Money [Member] | ||||
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| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
| Nicholas Bitcoin and Treasuries AfterDark ETF | Risk Nondiversified Status [Member] | ||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Nicholas Bitcoin Tail ETF | Derivatives Risk [Member] | ||||
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| 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 indices. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Index and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Nicholas Bitcoin Tail ETF | Options Contracts [Member] | ||||
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| Risk [Text Block] | Options Contracts. The use of options contracts 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 security or instrument, including the anticipated volatility, which is affected by fiscal and monetary policies, changes in the actual or implied volatility of the underlying security or instrument, the time remaining until the expiration of the option contract and economic events. 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 security or instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate as the underlying security or instrument. There may at times be an imperfect correlation between the movement in the values of options contracts and the underlying security or instrument, 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. Additionally, as the Fund may continuously maintain indirect exposure to one or more of the underlying securities or instruments through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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| Nicholas Bitcoin Tail ETF | Commodity Pool Regulatory Risk [Member] | ||||
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| Risk [Text Block] | Commodity Pool Regulatory Risk. The Fund’s investment exposures will cause it to be deemed to be a commodity pool, thereby subjecting the Fund to regulation under the Commodities Exchange Act of 1936, as amended (the “CEA”) and CFTC rules. The Adviser is registered as a commodity pool operator (“CPO”) and the Fund will be operated in accordance with applicable CFTC rules, as well as the regulatory scheme applicable to registered investment companies. Registration as a CPO imposes additional compliance obligations on the Adviser and the Fund related to additional laws, regulations, and enforcement policies, which could increase compliance costs and may affect the operations and financial performance of the Fund. However, the Fund’s status as a commodity pool and the Adviser’s registration as a CPO are not expected to materially adversely affect the Fund’s ability to achieve its investment objective. The CFTC has not passed on the adequacy of this Prospectus.
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| Nicholas Bitcoin Tail ETF | Counterparty Risk [Member] | ||||
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| Risk [Text Block] | Counterparty Risk. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Nicholas Bitcoin Tail ETF | Underlying Fund Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Underlying Fund Risk. The Fund’s investment strategy, involving indirect exposure to bitcoin through options on one or more Bitcoin Underlying Funds, is subject to the risks associated with bitcoin. |
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| Nicholas Bitcoin Tail ETF | Bitcoin Underlying Fund Risks [Member] | ||||
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| Nicholas Bitcoin Tail ETF | Potentially No 1940 Act Protections [Member] | ||||
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| Nicholas Bitcoin Tail ETF | ETF Risks [Member] | ||||
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| Risk [Text Block] | ETF Risks
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| Nicholas Bitcoin Tail ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
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| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “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.
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| Nicholas Bitcoin Tail ETF | Cash Redemption Risk [Member] | ||||
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| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, 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. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Nicholas Bitcoin Tail ETF | Costs of Buying or Selling Shares [Member] | ||||
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| Nicholas Bitcoin Tail ETF | Management Risk [Member] | ||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| Nicholas Bitcoin Tail ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
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| Nicholas Bitcoin Tail ETF | Trading [Member] | ||||
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| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the 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 Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
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| Nicholas Bitcoin Tail ETF | Economic and Market Risk [Member] | ||||
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| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Nicholas Bitcoin Tail ETF | High Portfolio Turnover Risk [Member] | ||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Nicholas Bitcoin Tail ETF | New Fund Risk [Member] | ||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors have a limited track record or history on which to base their investment decisions.
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| Nicholas Bitcoin Tail ETF | Operational Risk [Member] | ||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund, Adviser, and Sub-Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Nicholas Bitcoin Tail ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | ||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Nicholas Bitcoin Tail ETF | Bitcoin Appreciation Risk [Member] | ||||
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| Risk [Text Block] | Bitcoin Appreciation Risk. By virtue of the Fund’s design as a hedge against declines in the value of bitcoin, the Fund is subject to the risk that bitcoin’s value increases. If the value of bitcoin increases, the Fund will likely lose value and, as a result, the Fund may suffer significant losses. Bitcoin is relatively new and the market for bitcoin is subject to rapid price swings, changes and uncertainty. Rapid increases in the value of bitcoin may result in substantial losses for the Fund. In addition, the broad acceptance and use of bitcoin would likely result in an increase in the value of bitcoin, which could result in significant losses for the Fund.
In addition, as a result of the Fund’s inverse exposure to the value of bitcoin, the Fund may also be subject to the following risks:
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| Nicholas Bitcoin Tail ETF | Growing Adoption and Use Cases [Member] | ||||
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| Risk [Text Block] | Growing Adoption and Use Cases: If the adoption of bitcoin continues to grow, the demand for bitcoin would likely increase. Such an increased demand could cause the price of bitcoin to rise, which would negatively impact the Fund’s performance.
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| Nicholas Bitcoin Tail ETF | Maintenance of Current Status [Member] | ||||
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| Risk [Text Block] | Maintenance of Current Status: Bitcoin is the first and most well-known crypto asset, which is a significant advantage over other crypto assets. To the extent other crypto assets, and other blockchains supporting advanced applications like smart contracts, are not able to gain traction within the crypto asset market, the price of bitcoin could benefit which would negatively impact the Fund’s performance.
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| Nicholas Bitcoin Tail ETF | Institutional Adoption [Member] | ||||
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| Risk [Text Block] | Institutional Adoption: Institutional investors and corporations are increasingly showing interest in crypto assets as an asset class. With the emergence of regulated investment vehicles such as bitcoin-based exchange-traded funds (ETFs) and the growing acceptance of crypto assets by traditional financial institutions, institutional adoption of bitcoin could accelerate, leading to increased demand and price appreciation. Such adoption could cause the price of bitcoin to rise, which would negatively impact the Fund’s performance.
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| Nicholas Bitcoin Tail ETF | Macroeconomic Factors [Member] | ||||
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| Risk [Text Block] | Macroeconomic Factors: Economic uncertainty, inflation concerns, and currency devaluation in traditional financial markets can drive investors towards alternative assets like crypto assets, including bitcoin, as a hedge against economic instability. Additionally, monetary policies implemented by central banks, such as quantitative easing, can contribute to the devaluation of fiat currencies, making crypto assets more attractive as store of value assets. Such macroeconomic factors could cause the price of bitcoin to rise, which would negatively impact the Fund’s performance.
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| Nicholas Bitcoin Tail ETF | Technological Innovation [Member] | ||||
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| Risk [Text Block] | Technological Innovation: Ongoing technological advancements and developments within the bitcoin ecosystem, such as layer 2 scaling solutions, have the potential to enhance the utility and attractiveness of bitcoin, driving increased demand and price appreciation, which would negatively impact the Fund’s performance.
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| Nicholas Bitcoin Tail ETF | Regulated Investment Company Tax Risk [Member] | ||||
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| Risk [Text Block] | Regulated Investment Company Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on Bitcoin-related assets does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options whose value depends on Bitcoin were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Nicholas Bitcoin Tail ETF | Risk Lose Money [Member] | ||||
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| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
| Nicholas Bitcoin Tail ETF | Risk Nondiversified Status [Member] | ||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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