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Label Element Value
Prospectus [Line Items] rr_ProspectusLineItems  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Oct. 31, 2018
Entity Registrant Name dei_EntityRegistrantName Manager Directed Portfolios
Entity Central Index Key dei_EntityCentralIndexKey 0001359057
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Mar. 25, 2019
Document Effective Date dei_DocumentEffectiveDate Apr. 24, 2019
Prospectus Date rr_ProspectusDate Apr. 24, 2019
Entity Inv Company Type dei_EntityInvCompanyType N-1A
iM DBi Managed Futures Strategy ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading iM DBi Managed Futures Strategy ETF
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The iM DBi Managed Futures Strategy ETF (the “Fund”) seeks long-term capital appreciation.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not include the brokerage commissions and other charges that investors may pay on their purchases and sales of Shares.
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. Because the Fund is newly organized, portfolio turnover information is not yet available.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
The Fund is a non-diversified actively-managed exchange-traded fund (“ETF”) that does not seek to replicate the performance of a specific index. Rather, the Fund seeks to achieve its objective by: (i) investing its assets pursuant to managed futures strategy (described below); (ii) allocating up to 10% of its total assets in its wholly-owned subsidiary (the “Subsidiary”), which is organized under the laws of the Cayman Islands, is advised by the Sub-Adviser (as defined herein), and will comply with the Fund’s investment objective and investment policies; and (iii) investing directly in select debt instruments for cash management and other purposes.
 
The Fund’s managed futures strategy employs long and short positions in derivatives, primarily futures contracts and forward contracts, across the broad asset classes of equities, fixed income, currencies and, through the Subsidiary, commodities. Fund positions in those contracts are determined based on a proprietary, quantitative model – the Dynamic Beta Engine – that seeks to identify the main drivers of performance by approximating the current asset allocation of a selected pool of the largest commodity trading advisor hedge funds (“CTA”), which are hedge funds that use futures or forward contracts to achieve their investment objectives. The Dynamic Beta Engine analyzes recent historical performance in order to estimate the current asset allocation of a selected pool of the largest CTAs. The Sub-Adviser relies exclusively on the model and does not have discretion to override the model-determined asset allocation or portfolio weights. The Sub-Adviser will periodically review whether instruments should be added to or removed from the model in order to improve the model’s efficiency. The model’s asset allocation is limited to asset classes that are traded on U.S.-based exchanges. Based on this analysis, the Fund will invest in an optimized portfolio of long and short positions in domestically-traded, liquid derivative contracts selected from a pool of the most liquid derivative contracts, as determined by the Sub-Adviser.
 
Futures contracts and forward contracts are contractual agreements to buy or sell a particular currency, commodity or financial instrument at a pre-determined price in the future. The Fund takes long positions in derivative contracts that provide exposure to various asset classes, sectors and/or markets that the Fund expects to rise in value, and takes short positions in asset classes, sectors or and/or markets that the Fund expects to fall in value. Currently, the Fund expects to limit its investments to highly-liquid, domestically-traded contracts that the Sub-Adviser believes exhibit the highest correlation to what the Sub-Adviser perceives to be the core positions of the target hedge funds. Such core positions are generally long and short positions in domestically-traded derivative contracts viewed as highly liquid by the Sub-Adviser.The Fund may have gross notional exposure, which is defined as the sum of the notional exposure of both long and short derivative positions across the Fund, that approximates the current asset allocation and matches the risk profile of a diversified pool of the largest CTAs. The Investment Company Act of 1940, as amended (the “1940 Act”), and the rules and interpretations thereunder, impose certain limitations on the Fund’s ability to use leverage. Under normal market conditions, the Sub-Adviser, on average, will target an annualized volatility level for the Fund of 8-10%.
 
The Sub-Adviser will, in an effort to reduce certain risks (e.g., volatility of returns), limit the Fund’s gross notional exposure on certain futures contracts whose returns are expected to be particularly volatile. In addition to these specific exposure limits, the Sub-Adviser will use quantitative methods to assess the level of risk for the Fund.
 
The Fund intends to gain exposure to commodities through its investments in the Subsidiary and may invest up to 10% of its total assets in the Subsidiary. Generally, the Subsidiary will invest primarily in commodity futures, but it may also invest in financial futures, fixed income securities, pooled investment vehicles, including those that are not registered with the SEC under the 1940 Act, and other investments intended to serve as margin or collateral for the Subsidiary’s derivative positions. Unlike the Fund, the Subsidiary may invest without limitation in commodity-linked derivative instruments; however, the Subsidiary will comply with the same 1940 Act asset coverage requirements with respect to its investments in commodity-linked derivatives that are applicable to the Fund’s transactions in derivatives. In addition, to the extent applicable to the investment activities of the Subsidiary, the Subsidiary will be subject to the same fundamental investment restrictions and will follow the same compliance policies and procedures as the Fund. Unlike the Fund, the Subsidiary will not seek to qualify as a regulated investment company (“RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”). The Fund is the sole investor in the Subsidiary and does not expect shares of the Subsidiary to be offered or sold to other investors.
 
In addition to its use of futures and investment in the Subsidiary, the Fund expects, under normal circumstances, to invest in debt securities to collateralize its derivatives investments, for liquidity purposes, or to enhance yield. The Fund may hold fixed instruments of varying maturities, but that have an average duration of less than one year. In particular, the Fund may hold government money market instruments, such as U.S. Treasury securities and U.S. government agency discount notes and bonds with maturities of two years or less. In addition, the Fund may invest in bank obligations, which may include certificates of deposit, commercial paper, asset-backed commercial paper, unsecured bank promissory notes, bank loans, bankers’ acceptances, and time deposits, as well as other short-term instruments, such as loan participations, and commercial paper. The Fund may also hold short-term U.S. corporate bonds rated AAA (or equivalent) by a nationally recognized statistical ratings organization.
 
Since the Fund is non-diversified, it may invest a greater percentage of its assets in a particular investment or issuer than a diversified fund.
Risk [Heading] rr_RiskHeading Principal Risks of Investing in the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
The principal risks of investing in the Fund are summarized below. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its objectives. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. The following risks could affect the value of your investment in the Fund:
 
Managed Futures Strategy Risk. In seeking to achieve its investment objective, the Fund will utilize various investment strategies that involve the use of complex investment techniques, and there is no guarantee that these strategies will succeed. The use of such strategies and techniques may subject the Fund to greater volatility and loss. There can be no assurance that utilizing a certain approach or model will achieve a particular level of return or reduce volatility and loss.
Futures Contracts Risk. Futures contracts have a high degree of price variability and are subject to occasional rapid and substantial changes. There is an imperfect correlation between the change in market value of the futures contracts and the market value of the underlying instrument or reference assets with respect to such contracts. Futures contracts pose the risk of a possible lack of a liquid secondary market, resulting in the potential inability to close a futures contract when desired. Futures contracts are also subject to risks related to possible market disruptions or other extraordinary events, including but not limited to, governmental intervention, and potentially unlimited losses caused by unanticipated market movements. Futures contracts are subject to the possibility that the counterparties to the contracts will default in the performance of their obligations. If the Fund has insufficient cash, it may either have to sell securities from its portfolio to meet daily variation margin requirements with respect to its futures contracts, or close certain positions at a time when it may be disadvantageous to do so. The successful use of futures contracts draws upon the Sub-Adviser’s skill and experience with respect to such instruments and is subject to special risk considerations.
The use of futures contracts, which are derivative instruments, will have the economic effect of financial leverage. Financial leverage magnifies exposure to the swings in prices of an asset class underlying an investment and results in increased volatility, which means the Fund will have the potential for greater losses than if the Fund did not employ leverage in its investment activity. Leveraging tends to magnify, sometimes significantly, the effect of any increase or decrease in the Fund’s exposure to an asset class and may cause the value of the Fund’s securities or related derivatives instruments to be volatile. There is no assurance that the Fund’s investment in a futures contract with leveraged exposure to certain investments and markets will enable the Fund to achieve its investment objective.
 
Forward Contracts Risk. Forward contracts involve an obligation to purchase or sell a specific currency at a future date, which may be any fixed number of days from the date of the contract as agreed by the parties in an amount and at a price set at the time of the contract. At the maturity of a forward contract, a fund may either accept or make delivery of the currency specified in the contract or, at or prior to maturity, enter into a closing transaction involving the purchase or sale of an offsetting contract. The Fund may invest in non-deliverable forwards, which are cash-settled, short-term forward contracts on foreign currencies that are non-convertible and that may be thinly traded or illiquid. The use of forward contracts involves various risks, including the risks associated with fluctuations in foreign currency and the risk that the counterparty will fail to fulfill its obligations.
Commodities Risk. Exposure to the commodities markets (including financial futures markets) may subject the Fund, through its investment in the Subsidiary, to greater volatility than investments in traditional securities. Prices of commodities and related contracts may fluctuate significantly over short periods for a variety of reasons, including changes in interest rates, supply and demand relationships and balances of payments and trade; weather and natural disasters; and governmental, agricultural, trade, fiscal, monetary and exchange control programs and policies. The commodity markets are subject to temporary distortions and other disruptions. U.S. futures exchanges and some foreign exchanges have regulations that limit the amount of fluctuation in futures contract prices which may occur during a single business day. Limit prices have the effect of precluding trading in a particular contract or forcing the liquidation of contracts at disadvantageous times or prices.
Counterparty Risk. The derivative contracts entered into by the Fund or its Subsidiary may be privately negotiated in the over-the-counter market. These contracts also involve exposure to credit risk, since contract performance depends in part on the financial condition of the counterparty. Relying on a counterparty exposes the Fund to the risk that a counterparty will not settle a transaction in accordance with its terms and conditions because of a dispute over the terms of the contract (whether or not bona fide) or because of a credit or liquidity problem, thus causing the Fund to suffer a loss. If a counterparty defaults on its payment obligations to the Fund, this default will cause the value of an investment in the Fund to decrease. In addition, to the extent the Fund deals with a limited number of counterparties, it will be more susceptible to the credit risks associated with those counterparties. The ability of the Fund to transact business with any one or number of counterparties and the absence of a regulated market to facilitate settlement may increase the potential for losses by the Fund.
Credit Risk. Credit risk refers to the possibility that the issuer of the security or a counterparty in respect of a derivative instrument will not be able to satisfy its payment obligations to the Fund when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. Securities rated in the four highest categories by the rating agencies are considered investment grade but they may also have some speculative characteristics. Investment grade ratings do not guarantee that bonds will not lose value or default. In addition, the credit quality of securities may be lowered if an issuer’s financial condition changes.
Currency Risk. The Fund’s exposure to foreign currencies subjects the Fund to the risk that those currencies will decline in value relative to the U.S. Dollar, or, in the case of short positions, that the U.S. Dollar will decline in value relative to the currency that the Fund is short. Currency rates in foreign countries may fluctuate significantly over short periods of time for any number of reasons, including changes in interest rates and the imposition of currency controls or other political developments in the U.S. or abroad.
Derivatives Risk. Derivatives include instruments and contracts that are based on, and are valued in relation to, one or more underlying securities, financial benchmarks or indices, such as futures swap agreements and forward contracts. Derivatives typically have economic leverage inherent in their terms. The primary types of derivatives in which the Fund or the Subsidiary invest are futures contracts and forward contracts. Futures contracts and forward contracts can be highly volatile, illiquid and difficult to value, and changes in the value of such instruments held directly or indirectly by the Fund may not correlate with the underlying instrument or reference assets, or the Fund’s other investments. Although the value of futures contracts and forward contracts depends largely upon price movements in the underlying instrument or reference asset, there are additional risks associated with futures contracts and forward contracts that are possibly greater than the risks associated with investing directly in the underlying instruments or reference assets, including illiquidity risk, leveraging risk and counterparty credit risk. A small position in futures contracts or forward contracts could have a potentially large impact on the Fund’s performance. Trading restrictions or limitations may be imposed by an exchange, and government regulations may restrict trading in futures contracts and forward contracts.Equity Securities Risk. The Fund may invest in, or have exposure to, equity securities. Equity securities tend to be more volatile than other investment choices, such as debt and money market instruments. The value of your investment may decrease in response to overall stock market movements or the value of individual securities.
ETF Risks. The Fund is an ETF, 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.
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.
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, 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.
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 Shares.
 
Debt Securities and Fixed-Income Risk. Fixed income securities, such as U.S. Treasuries, or derivatives based on fixed income securities, are subject to credit risk and interest rate risk. Credit risk, as described more fully below, refers to the possibility that the issuer of a debt security will be unable to make interest payments or repay principal when it becomes due. Interest rate risk refers to fluctuations in the value of a debt security resulting from changes in the general level of interest rates. Prices of fixed income securities tend to move inversely with changes in interest rates. Typically, a rise in rates will adversely affect fixed income security prices and, accordingly, the Fund’s returns and share price. In addition, the Fund may be subject to “call” risk, which is the risk that during a period of falling interest rates the issuer may redeem a security by repaying it early (which may reduce the Fund’s income if the proceeds are reinvested at lower interest rates), and “extension” risk, which occurs during a rising interest rate environment because certain obligations will be paid off by an issuer more slowly than anticipated (causing the value of those securities held by the Fund to fall).
General Market Risk. The Fund’s NAV and investment return will fluctuate based upon changes in the value of its portfolio securities. You could lose money on your investment in the Fund, or the Fund could underperform other investments.
Government Securities and Agency Risk. Direct obligations of the U.S. Government such as Treasury bills, notes and bonds are supported by its full faith and credit. Indirect obligations issued by Federal agencies and government-sponsored entities generally are not backed by the full faith and credit of the U.S. Treasury. Accordingly, while U.S. Government agencies and instrumentalities may be chartered or sponsored by Acts of Congress, their securities are neither issued nor guaranteed by the U.S. Treasury. Some of these indirect obligations may be supported by the right of the issuer to borrow from the Treasury; others are supported by the discretionary authority of the U.S. Government to purchase the agency’s obligations; still others are supported only by the credit of the instrumentality.
Interest Rate Risk. Interest rate risk is the risk that prices of fixed income securities generally increase when interest rates decline and decrease when interest rates increase. The Fund may lose money if short term or long term interest rates rise sharply or otherwise change in a manner not anticipated by the Sub-Adviser. The Fund may be subject to heightened interest rate risk due to rising rates as the current period of historically low interest rates may be ending. Interest rate risk is generally greater for fixed-income securities with longer maturities or durations, but increasing interest rates may have an adverse effect on the value of the Fund’s investment portfolio as a whole, as investors and markets adjust expected returns relative to such increasing rates. The negative impact on fixed income securities from the resulting rate increases for that and other reasons could be swift and significant
Leverage Risk. Although the Fund will not borrow funds for trading, the Fund should be considered highly leveraged and is suitable only for investors with high tolerance for investment risk. Leverage embedded in the various derivative instruments traded may result in the Fund or its Subsidiary holding positions whose face or notional value may be many times the Fund’s NAV. As a result of this leveraging, even a small movement in the price of a commodity can cause a correspondingly large profit or loss. Losses incurred on leveraged investments increase in direct proportion to the degree of leverage employed. Furthermore, derivative instruments and futures contracts are highly volatile and are subject to occasional rapid and substantial fluctuations. Volatility is a statistical measurement of the variation of returns of a security or fund or index over time. Higher volatility generally indicates higher risk. You could lose all or substantially all of your investment in the Fund should the Fund’s trading positions suddenly turn unprofitable.
Liquidity Risk. The Fund is subject to liquidity risk primarily due to its investments in derivatives. Investments in derivative instruments involve the risk that the Fund may be unable to sell the derivative instrument or sell it at a reasonable price.
Management Risk. The Fund is actively-managed and may not meet its investment objective based on the portfolio managers’ success or failure to implement investment strategies for the Fund.
Market Risk. The trading prices of equity securities and other instruments fluctuate in response to a variety of factors, including the activities and financial condition of individual companies, the market in which an issuer competes, and general economic conditions. The Fund’s NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.
New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors have no track record or history on which to base their investment decision.
Non-Diversified Fund Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer. As a result, a decline in the value of an investment in a single issuer could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
OTC Trading Risk. Certain of the derivatives in which the Fund may invest may be traded (and privately negotiated) in the “over-the-counter” or “OTC” market. While the OTC derivatives market is the primary trading venue for many derivatives, it is largely unregulated. As a result and similar to other privately negotiated contracts, the Fund is subject to counterparty credit risk with respect to such derivative contracts.
Portfolio Turnover Risk. The Fund may frequently buy and sell portfolio securities and other assets to rebalance the Fund’s exposure to various market sectors. Higher portfolio turnover may result in the Fund paying higher levels of transaction costs and generating greater tax liabilities for shareholders. Portfolio turnover risk may cause the Fund’s performance to be less than you expect.
Regulatory Risk. Governments, agencies or other regulatory bodies may adopt or change laws or regulations that could adversely affect the issuer, or market value, of an instrument held by the Fund or its Subsidiary or that could adversely impact the Fund’s performance.
Short Sales Risk. The Fund may take a short position in a derivative instrument, such as a future, or forward, or swap or a security. A short position on a derivative instrument or security involves the risk of a theoretically unlimited increase in the value of the underlying instrument. Short sales also involve transaction and other costs that will reduce potential Fund gains and increase potential Fund losses.
Subsidiary Risk. By investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary’s investments. The derivatives and other investments held by the Subsidiary are generally similar to those that are permitted to be held by the Fund and are subject to the same 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/or 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.
Tax Risk. In order to qualify as a RIC under Subchapter M of the Code and be eligible to receive “pass-through” tax treatment, the Fund must, among other things, must meet certain requirements regarding the source of its income, the diversification of its assets and the distribution of its income. Under the source of income test, at least 90% of a RIC’s gross income each year must be “qualifying income,” which generally consists of dividends, interest, gains on investment assets and certain other categories of investment income. Although qualifying income generally does not include income derived directly from commodities, including certain commodity-linked derivatives, the Internal Revenue Service (“IRS”) issued many private letter rulings (which the Fund may not use or cite as precedent because only the recipient of a private letter ruling may rely upon it) between 2006 and 2011 concluding that income a RIC derives from a wholly owned foreign subsidiary (a controlled foreign corporation or “CFC”), such as the Subsidiary, which earns income derived from commodities is qualifying income. The Fund’s investment in the Subsidiary is intended to provide the Fund with exposure to the commodities markets within the limitations of the Code such that the Fund continues to qualify as a RIC, but there is a risk that the IRS could assert that the income that the Fund derives from the Subsidiary and/or certain commodity-linked structured notes will not be considered qualifying income for purposes of the source of income test.

The aforementioned 2006 to 2011 private letter rulings may no longer represent the IRS’ current views and the policies underlying those private letter rulings will be officially overturned if Treasury Regulations proposed on September 28, 2016 (the “Proposed Regulations”) are finalized as proposed. Under the Proposed Regulations, the pro rata share of a CFC’s income that the Code requires a RIC shareholder to include in the RIC’s gross income each taxable year whether or not distributed (a “Subpart F Inclusion”), which the 2006 through 2011 private letter rulings concluded was qualifying income for a RIC, will no longer be considered qualifying income. Instead, only actual distributions that the CFC makes to the RIC out of the CFC’s earnings and profits for the applicable taxable year that are attributable to the Subpart F Inclusion (“Earnings and Profits”) will qualify. Although the Fund generally receives annual distributions from the Subsidiary of CFC Earnings and Profits, if any, each taxable year, if in one or more taxable years the Fund did not receive any such distributions, received less than all of such Earnings and Profits, or the IRS concluded that the amounts the Fund received were not “distributions” for U.S. federal income tax purposes, the Fund might have difficulty in such years satisfying the source of income test to qualify as a RIC.

The federal income tax treatment of the Fund’s income from the Subsidiary also may be negatively affected by future legislation, Treasury Regulations (proposed or final), and/or other IRS guidance or authorities that could affect the character, timing of recognition, and/or amount of the Fund’s investment company taxable income and/or net capital gains and, therefore, the distributions it makes. If the Fund failed the source of income test for any taxable year but was eligible to and did cure the failure, it could incur potentially significant additional federal income tax expenses. If, on the other hand, the Fund failed to qualify as a RIC for any taxable year and was ineligible to or otherwise did not cure the failure, it would be subject to federal income tax at the fund-level on its taxable income at the regular corporate tax rate (without reduction for distributions to shareholders), with the consequence that its income available for distribution to shareholders would be reduced and distributions from its current or accumulated earnings and profits would generally be taxable to its shareholders as dividend income.

Changes in the laws of the United States and/or the Cayman Islands could result in the inability of the Fund and/or the Subsidiary to operate as described in this Prospectus and the Statement of Additional Information (“SAI”) 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.
Risk Lose Money [Text] rr_RiskLoseMoney As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer. As a result, a decline in the value of an investment in a single issuer could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The Fund is new and therefore does not have a performance history for a full calendar year. In the future, performance information for the Fund will be presented in this section. Updated performance information is also available on the Fund’s website at www.imglobalpartner.com.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess The Fund is new and therefore does not have a performance history for a full calendar year. In the future, performance information for the Fund will be presented in this section.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.imglobalpartner.com
iM DBi Managed Futures Strategy ETF | iM DBi Managed Futures Strategy ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.85%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets none
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 87
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 $ 271