The Example assumes that you invest $10,000 in the Fund for the time periods indicated, and then redeem 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. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy Narrative [Text Block]

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The Fund invests principally in securities of companies included in the underlying index and in derivative instruments which primarily consist of equity index swaps, futures contracts, and options on securities, futures contracts, and stock indices. Equity index swaps and futures and options contracts, if used properly, may enable the Fund to meet its investment objective by increasing the Fund’s exposure to the securities included in the underlying index or to securities whose performance is highly correlated to that of the underlying index. The Fund may also invest in exchange-traded funds (“ETFs”) that provide exposure to one or more foreign countries and in American Depositary Receipts (“ADRs”) to gain exposure to the underlying index. While the Fund anticipates investing in these instruments to seek to achieve its investment objective, the extent of the Fund’s investment in these instruments may vary from day to day depending on a number of different factors, including price, availability, and general market conditions. Under normal circumstances, the Fund will invest at least 80% of its net assets, plus any borrowings for investment purposes, in securities of companies in the underlying index and derivatives and other instruments whose performance is expected to correspond to that of the underlying index. The MSCI EAFE Index is a free float-adjusted market capitalization index that is designed to measure developed market equity performance, excluding the U.S. and Canada. As of [date] the MSCI EAFE Index consisted of the following 21 developed market country indices: [Australia, Austria, Belgium, Denmark, Finland, France, Germany, Greece, Hong Kong, Ireland, Italy, Japan, the Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland and the United Kingdom.] As of [date], the MSCI EAFE Index included companies with capitalizations ranging from $___ billion to $___ billion. Certain of the Fund’s derivative investments may be traded in the over-the-counter (“OTC”) market. On a day-to-day basis, the Fund may hold U.S. government securities or cash equivalents to collateralize its derivative positions. In an effort to ensure that the Fund is fully invested on a day-to-day basis, the Fund may conduct any necessary trading activity at or just prior to the close of the U.S. financial markets. To the extent the underlying index is concentrated in a particular industry, the Fund will necessarily be concentrated in that industry. The Fund is non-diversified and, therefore, may invest a greater percentage of its assets in a particular issuer in comparison to a diversified fund.

Risk Narrative [Text Block]

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As with all mutual funds, a shareholder is subject to the risk that his or her investment could lose money. In addition to this risk, the Fund is subject to the principal risks described below.

ACTIVE TRADING RISK—The Fund may be used as a tool for certain investors that employ trading strategies involving frequent trading. Such trading strategies may lead to increased portfolio turnover in the Fund, higher transaction costs, and the possibility of increased short-term capital gains (which will be taxable to shareholders as ordinary income when distributed to them) and/or long-term capital gains. Large movements of assets into and out of the Fund due to active or frequent trading also may adversely affect the Fund's ability to achieve its investment objective.

CORRELATION AND COMPOUNDING RISK—A number of factors may affect the Fund’s ability to achieve a high degree of correlation with its benchmark, and there can be no guarantee that the Fund will achieve a high degree of correlation. Failure to achieve a high degree of correlation may prevent the Fund from achieving its investment objective. The Fund does not attempt to, and should not be expected to, provide returns which are a multiple of the returns of the underlying index for periods other than a single day. The risk of the Fund not achieving its daily investment objective will be more acute when the underlying index has an extreme one-day movement approaching 50%. In addition, as a result of compounding, the Fund’s performance for periods greater than one day is likely to be either greater than or less than the performance of the underlying index times the stated multiple in the Fund’s investment objective, before accounting for fees and Fund expenses.

Compounding affects all investments, but has a more significant impact on a leveraged index fund. In general, particularly during periods of higher index volatility, compounding will cause longer-term results to be more or less than the return of the Fund’s benchmark. This effect becomes more pronounced as volatility increases.

Fund performance for periods greater than one day can be estimated given any set of assumptions for the following factors: (a) underlying index performance; (b) underlying index volatility; (c) financing rates associated with leverage; (d) other Fund expenses; (e) dividends paid by companies in the underlying index; and (f) period of time. The table below illustrates the impact of two principal factors – volatility and index performance – on Fund performance. The table shows estimated Fund returns for a number of combinations of performance and volatility over a one-year period. Performance shown in the table assumes: (a) no dividends paid by the companies included in the underlying index; (b) no Fund expenses; and (c) a cost of leverage of zero percent. If Fund expenses, including the cost of leverage, were included, the Fund’s performance would be lower than shown.

Areas shaded lighter represent those scenarios where the Fund can be expected to return more than twice the performance of the underlying index; conversely, areas shaded darker represent those scenarios where the Fund can be expected to return less than twice the performance of the underlying index.



Index Performance		Annualized Volatility
1x	2x	10%	25%	50%	75%	100%
-60%	-120%	-84%	-85%	-88%	-91%	-94%
-50%	-100%	-75%	-77%	-81%	-86%	-91%
-40%	-80%	-65%	-66%	-72%	-80%	-87%
-30%	-60%	-52%	-54%	-62%	-72%	-82%
-20%	-40%	-37%	-41%	-49%	-64%	-78%
-10%	-20%	-20%	-24%	-37%	-55%	-71%
0%	0%	-1%	-5%	-22%	-43%	-65%
10%	20%	19%	14%	-5%	-31%	-58%
20%	40%	42%	36%	11%	-15%	-47%
30%	60%	67%	59%	32%	-3%	-38%
40%	80%	93%	84%	52%	11%	-28%
50%	100%	122%	111%	76%	28%	-20%
60%	120%	154%	140%	100%	44%	-10%

The underlying index’s annualized historical volatility rate for the five year period ended [DATE] is ____%. The underlying index’s highest one-year volatility rate during the five year period is ____%. The underlying index’s annualized performance for the five year period ended [DATE] is ____%.

Historical underlying index volatility and performance are not indications of what the underlying index volatility and performance will be in the future. The table is intended to underscore that the Fund is designed as a short-term trading vehicle for investors who intend to actively monitor and manage their portfolios.

COUNTERPARTY CREDIT RISK—The Fund may invest in financial instruments involving counterparties that attempt to gain exposure to a particular group of securities, index or asset class without actually purchasing those securities or investments, or to hedge a position. The Fund’s use of such financial instruments, including swap agreements, involves risks that are different from those associated with ordinary portfolio securities transactions. For example, the Fund is exposed to the risk that the counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty becomes bankrupt or defaults on its payment obligations to the Fund, the Fund may not receive the full amount that it is entitled to receive. If this occurs, the value of your shares in the Fund will decrease.

CURRENCY RISK—The Fund’s indirect and direct 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 being hedged. The Fund also may incur transaction costs in connection with conversions between various currencies. The Fund may attempt to, but is not obligated to, hedge its currency exposure. However, currency hedging strategies may not effectively eliminate all currency risk.

DEPOSITARY RECEIPT RISK—The Fund may hold the securities of non-U.S. companies in the form of ADRs. The underlying securities of the ADRs in the Fund’s portfolio are subject to fluctuations in foreign currency exchange rates that may affect the value of the Fund’s portfolio. In addition, the value of the securities underlying the ADRs may change materially when the U.S. markets are not open for trading. Investments in the underlying foreign securities also involve political and economic risks distinct from those associated with investing in the securities of U.S. issuers.

DERIVATIVES RISK—The Fund’s investments in derivatives may pose risks in addition to and greater than those associated with investing directly in securities or other investments, including risks relating to leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, high price volatility, lack of availability, counterparty credit, liquidity, valuation and legal restrictions. Their use is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. If the Advisor is incorrect about its expectations of market conditions, the use of derivatives could also result in a loss, which in some cases may be unlimited. Certain risks are specific to the derivatives in which the Fund invests.

SWAP AGREEMENTS RISK—Swap agreements are contracts among the Fund and a counterparty to exchange the return of the pre-determined underlying investment (such as the rate of return of the underlying index). Swap agreements may be negotiated bilaterally and traded OTC between two parties or, in some instances, must be transacted through a futures commission merchant and cleared through a clearinghouse that serves as a central counterparty. Risks associated with the use of swap agreements are different from those associated with ordinary portfolio securities transactions, due in part to the fact they could be considered illiquid and many swaps trade on the OTC market. Swaps are particularly subject to counterparty credit, correlation, valuation, liquidity and leveraging risks. Certain standardized swaps are subject to mandatory central clearing. Central clearing is expected to reduce counterparty credit risk and increase liquidity, but central clearing does not make swap transactions risk-free.

FUTURES CONTRACTS RISK—Futures contracts are typically exchange traded contracts that call for the future delivery of an asset at a certain price and date, or cash settlement of the terms of the contract. Risks of futures contracts may be caused by an imperfect correlation between movements in the price of the instruments and the price of the underlying securities. In addition, there is the risk that the Fund may not be able to enter into a closing transaction because of an illiquid market. Exchanges can limit the number of positions that can be held or controlled by the Fund or the Advisor, thus limiting the ability to implement the Fund’s strategies. Futures markets are highly volatile and the use of futures may increase the volatility of the Fund’s NAV. Futures are also subject to leverage risks and to liquidity risk.

OPTIONS RISK—Options or options on futures contracts give the holder of the option the right to buy (or to sell) a position in a security or in a contract to the writer of the option, at a certain price. They are subject to correlation risk because there may be an imperfect correlation between the options and the securities markets that cause a given transaction to fail to achieve its objectives. The successful use of options depends on the Advisor’s ability to correctly predict future price fluctuations and the degree of correlation between the options and securities markets. Exchanges can limit the number of positions that can be held or controlled by the Fund or the Advisor, thus limiting the ability to implement the Fund’s strategies. Options are also particularly subject to leverage risk and can be subject to liquidity risk.

EARLY CLOSING RISK—The Fund is subject to the risk that unanticipated early closings of securities exchanges and other financial markets may result in the Fund’s inability to buy or sell securities or other financial instruments on that day and may cause the Fund to incur substantial trading losses.

EQUITY RISK—The Fund is subject to the risk that the value of the equity securities or equity-based derivatives in the Fund’s portfolio will decline due to volatility in the equity market caused by general market and economic conditions, perceptions regarding particular industries represented in the equity market, or factors relating to specific companies to which the Fund has investment exposure.

FOREIGN ISSUER EXPOSURE RISK—The Fund may invest in securities of foreign companies directly, or in financial instruments that are indirectly linked to the performance of foreign issuers. The Fund’s investments in foreign securities and foreign issuers are subject to additional risks in comparison to U.S. securities and U.S. issuers, including currency fluctuations, adverse political and economic developments, unreliable or untimely information, less liquidity, limited legal recourse and higher transactional costs.

INVESTMENT IN INVESTMENT VEHICLES RISK—Investing in other investment vehicles, including, exchange-traded funds, closed-end funds, affiliated short-term fixed-income funds and other mutual funds, subjects the Fund to those risks affecting the investment vehicle, including the possibility that the value of the underlying securities held by the investment vehicle could decrease. Moreover, the Fund will incur its pro rata share of the expenses of the underlying investment vehicles’ expenses. Consequently, an investment in the Fund entails more direct and indirect expenses than a direct investment in the underlying investment vehicles.

LEVERAGING RISK—The Fund achieves leveraged exposure to the underlying index through the use of derivative instruments. The more the Fund invests in leveraged instruments, the more this leverage will magnify any losses on those investments. The Fund’s investment in these instruments generally requires a small investment relative to the amount of investment exposure assumed. As a result, such investments may give rise to losses that exceed the amount invested in those instruments. Since the Fund’s investment strategy involves consistently applied leverage, the value of the Fund’s shares will tend to increase or decrease more than the value of any increase or decrease in the underlying index. Leverage also will have the effect of magnifying tracking error.

LIQUIDITY RISK—In certain circumstances, it may be difficult for the Fund to purchase and sell a particular security or derivative instrument within a reasonable time at a fair price. While the Fund intends to invest in liquid futures, options, forwards and swap contracts, under certain market conditions, such as when the market makes a “limit move,” it may be difficult or impossible for the Fund to liquidate such investments. In addition, the ability of the Fund to assign an accurate daily value to certain investments may be difficult, and the Advisor may be required to fair value the investments.

MARKET RISK—The market value of the securities and derivatives held by the Fund may fluctuate resulting from factors affecting the individual company or other factors such as changing economic, political or financial market conditions. Moreover, changing economic, political or financial market conditions in one country or geographic region could adversely impact the market value of the securities held by the Fund in a different country or geographic region.

MID-CAPITALIZATION SECURITIES RISK—The Fund is subject to the risk that medium-capitalization stocks may underperform other segments of the equity market or the equity market as a whole.

NON-DIVERSIFICATION RISK—The Fund is considered non-diversified and can invest a greater portion of its assets in securities of individual issuers than a diversified fund. As a result, changes in the market value of a single security could cause greater fluctuations in the value of Fund shares than would occur in a diversified fund.

OTC TRADING RISK—Certain of the derivatives in which the Fund may invest may be traded (and privately negotiated) in the 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 derivatives contracts.

PASSIVE INVESTMENT RISK—The Fund is not actively managed and the Advisor does not attempt to take defensive positions in declining markets. Therefore, the Fund may be subject to greater losses in a declining market than a fund that is actively managed.

PORTFOLIO TURNOVER RISK—Daily rebalancing of the Fund's holdings pursuant to its daily investment objective may lead to a greater number of portfolio transactions in the Fund than experienced by other mutual funds. Such frequent and active trading may lead to significantly higher transaction costs because of increased broker commissions associated with such transactions.

SMALL-CAPITALIZATION SECURITIES RISK—The Fund is subject to the risk that small-capitalization stocks may underperform other segments of the equity market or the equity market as a whole.

TEMPORARY DEFENSIVE INVESTMENT RISK—The Fund does not attempt to take defensive positions in declining markets. Therefore, the Fund may be subject to greater losses in a declining market than a fund that does take defensive positions in declining markets.

TRACKING ERROR RISK—The Advisor may not be able to cause the Fund’s performance to correlate to that of the Fund’s benchmark, either on a daily or aggregate basis. Factors such as Fund expenses, imperfect correlation between the Fund’s investments and those of the underlying index, rounding of share prices, changes to the composition of the underlying index, regulatory policies, high portfolio turnover rate, and the use of leverage all contribute to tracking error. Tracking error may cause the Fund’s performance to be less than you expect.

TRADING HALT RISK—If a trading halt occurs, the Fund may temporarily be unable to purchase or sell securities, options or futures contracts. Such a trading halt near the time the Fund prices its shares may limit the Fund’s ability to use leverage and may prevent the Fund from achieving its investment objective.

Risk Nondiversified Status [Text]

rr_RiskNondiversifiedStatus

NON-DIVERSIFICATION RISK—The Fund is considered non-diversified and can invest a greater portion of its assets in securities of individual issuers than a diversified fund. As a result, changes in the market value of a single security could cause greater fluctuations in the value of Fund shares than would occur in a diversified fund.

Performance Narrative [Text Block]

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A comparison of the Fund’s performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund has not yet commenced operations and, therefore, does not have any performance history. Of course, once the Fund has performance for a full calendar year, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Performance Past Does Not Indicate Future [Text]

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Of course, once the Fund has performance for a full calendar year, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Prospectus:

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Management Fees (as a percentage of Assets)

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Other Expenses (as a percentage of Assets):

^[1]

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Expense Example, with Redemption, 1 Year

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Risk/Return [Heading]

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INVERSE INTERNATIONAL 2X STRATEGY FUND

Objective [Heading]

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INVESTMENT OBJECTIVE

Expense [Heading]

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FEES AND EXPENSES OF THE FUND

Shareholder Fees Caption [Text]

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SHAREHOLDER FEES (fees paid directly from your investment)

Portfolio Turnover [Heading]

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PORTFOLIO TURNOVER

Expense Example [Heading]

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EXAMPLE

Expense Example by, Year, Caption [Text]

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The Example assumes that you invest $10,000 in the Fund for the time periods indicated, and then redeem 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. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy Narrative [Text Block]

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The Fund employs as its investment strategy a program of engaging in short sales of securities generally included in the underlying index and investing in leveraged derivatives instruments, which primarily consist of equity index swaps, futures contracts, and options on securities, futures contracts, and stock indices. Equity index swaps, short sales, and futures and options contracts enable the Fund to pursue its objective without selling short each of the securities included in the underlying index. The Fund may also invest in exchange-traded funds (“ETFs”) that provide exposure to emerging market countries and in American Depositary Receipts (“ADRs”) to gain exposure to the underlying index. While the Fund anticipates investing in these instruments to seek to achieve its investment objective, the extent of the Fund’s investment in these instruments may vary from day to day depending on a number of different factors, including price, availability, and general market conditions. Under normal circumstances, the Fund will invest at least 80% of its net assets, plus any borrowings for investment purposes, in financial instruments with economic characteristics that should perform opposite to the securities of companies included in the underlying index. The MSCI EAFE Index is a free float-adjusted market capitalization index that is designed to measure developed market equity performance, excluding the U.S. and Canada. As of [date] the MSCI EAFE Index consisted of the following 21 developed market country indices: [Australia, Austria, Belgium, Denmark, Finland, France, Germany, Greece, Hong Kong, Ireland, Italy, Japan, the Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland and the United Kingdom.] As of [date], the MSCI EAFE Index included companies with capitalizations ranging from $___ billion to $___ billion. Certain of the Fund’s derivative investments may be traded in the over-the-counter (“OTC”) market. On a day-to-day basis, the Fund may hold U.S. government securities or cash equivalents to collateralize its short sales and derivative positions. . In an effort to ensure that the Fund is fully invested on a day-to-day basis, the Fund may conduct any necessary trading activity at or just prior to the close of the U.S. financial markets. To the extent the underlying index is concentrated in a particular industry the Fund will necessarily be concentrated in that industry. The Fund is non-diversified and, therefore, may invest a greater percentage of its assets in a particular issuer in comparison to a diversified fund.

Risk Narrative [Text Block]

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As with all mutual funds, a shareholder is subject to the risk that his or her investment could lose money. In addition to this risk, the Fund is subject to the principal risks described below.

ACTIVE TRADING RISK—The Fund may be used as a tool for certain investors that employ trading strategies involving frequent trading. Such trading strategies may lead to increased portfolio turnover in the Fund, higher transaction costs, and the possibility of increased short-term capital gains (which will be taxable to shareholders as ordinary income when distributed to them) and/or long-term capital gains. Large movements of assets into and out of the Fund due to active or frequent trading also may adversely affect the Fund's ability to achieve its investment objective.

CORRELATION AND COMPOUNDING RISK—A number of factors may affect the Fund’s ability to achieve a high degree of correlation with its benchmark, and there can be no guarantee that the Fund will achieve a high degree of correlation. Failure to achieve a high degree of correlation may prevent the Fund from achieving its investment objective. The Fund does not attempt to, and should not be expected to, provide returns which are a multiple of the returns of the underlying index for periods other than a single day. The risk of the Fund not achieving its daily investment objective will be more acute when the underlying index has an extreme one-day movement approaching 50%. In addition, as a result of compounding, because the Fund has a single day investment objective, the Fund’s performance for periods greater than one day is likely to be either greater than or less than the inverse of the performance of the underlying index times the stated multiple in the Fund’s investment objective, before accounting for fees and Fund expenses.

Compounding affects all investments, but has a more significant impact on a leveraged fund. In general, particularly during periods of higher index volatility, compounding will cause longer term results to be more or less than the inverse of the return of the underlying index. This effect becomes more pronounced as volatility increases.

Fund performance for periods greater than one day can be estimated given any set of assumptions for the following factors: (a) underlying index performance; (b) underlying index volatility; (c) financing rates associated with leverage; (d) other Fund expenses; (e) dividends paid by companies in the underlying index; and (f) period of time. The table below illustrates the impact of two principal factors – volatility and index performance – on Fund performance. The table shows estimated Fund returns for a number of combinations of performance and volatility over a one-year period. Performance shown in the table assumes: (a) no dividends paid by the companies included in the underlying index; (b) no Fund expenses; and (c) a cost of leverage of zero percent. If Fund expenses, including the cost of leverage, were included, the Fund’s performance would be lower than shown.

Areas shaded lighter represent those scenarios where the Fund can be expected to return more than twice the inverse performance of the underlying index; conversely, areas shaded darker represent those scenarios where the Fund can be expected to return the same or less than twice the inverse performance of the underlying index.



Index Performance		Annualized Volatility
1x	-2x	10%	25%	50%	75%	100%
-60%	120%	506%	404%	199%	13%	-69%
-50%	100%	286%	229%	91%	-27%	-82%
-40%	80%	171%	128%	33%	-49%	-86%
-30%	60%	99%	70%	-1%	-62%	-90%
-20%	40%	52%	31%	-27%	-70%	-93%
-10%	20%	20%	3%	-42%	-77%	-94%
0%	0%	-3%	-18%	-52%	-81%	-96%
10%	-20%	-19%	-31%	-61%	-84%	-96%
20%	-40%	-32%	-43%	-67%	-87%	-97%
30%	-60%	-42%	-51%	-72%	-89%	-97%
40%	-80%	-50%	-58%	-75%	-91%	-97%
50%	-100%	-57%	-63%	-79%	-92%	-98%
60%	-120%	-62%	-68%	-82%	-93%	-98%