485BPOS

As filed with the Securities and Exchange Commission on June 12, 2018

1933 Act Registration File No. 333-62298

1940 Act File No. 811-10401

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933		[X]
Pre-Effective Amendment No.		[   ]
Post-Effective Amendment No.	657	[X]

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940		[X]
Amendment No.	659	[X]

TRUST FOR PROFESSIONAL MANAGERS

(Exact Name of Registrant as Specified in Charter)

615 East Michigan Street

Milwaukee, Wisconsin 53202

(Address of Principal Executive Offices) (Zip Code)

 (Registrant’s Telephone Number, including Area Code) (414) 287-3338

Adam W. Smith, Esq.

U.S. Bancorp Fund Services, LLC

615 East Michigan Street, 2^nd Floor

Milwaukee, Wisconsin 53202

(Name and Address of Agent for Service)

Copies to:

Carol A. Gehl, Esq.

Godfrey & Kahn, S.C.

833 East Michigan Street, Suite 1800

Milwaukee, Wisconsin 53202

(414) 273-3500

It is proposed that this filing will become effective (check appropriate box)

[X]	Immediately upon filing pursuant to Rule 485(b).
[   ]	on (date) pursuant to Rule 485(b).
[   ]	60 days after filing pursuant to Rule 485 (a)(1).
[   ]	on (date), pursuant to Rule 485(a)(1).
[   ]	75 days after filing pursuant to Rule 485 (a)(2).
[   ]	on (date) pursuant to Rule 485(a)(2).

If appropriate, check the following box:

[X] This PEA No. 657hereby incorporates Parts A, B and C from the Fund’s PEA No. 655 on Form N‑1A filed June 12, 2018.  This PEA No. 657 is filed for the sole purpose of submitting the XBRL exhibit for the risk/return summary first provided in PEA No. 655.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that this Post-Effective Amendment No. 657 to its Registration Statement meets all of the requirements for effectiveness pursuant to Rule 485(b) of the Securities Act of 1933, as amended, and the Registrant has duly caused this Post-Effective Amendment No. 657 to its Registration Statement on Form N-1A to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Milwaukee and State of Wisconsin, on the 12^th day of June, 2018.

TRUST FOR PROFESSIONAL MANAGERS

By:  /s/ John P. Buckel                                         

John P. Buckel

President and Principal Executive Officer

Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 657 to its Registration Statement has been signed below on June 12, 2018, by the following persons in the capacities indicated.

Signature	Title
Joseph C. Neuberger*                               Joseph C. Neuberger	Chairperson and Interested Trustee
Michael D. Akers*                                      Michael D. Akers	Independent Trustee
Gary A. Drska*                                            Gary A. Drska	Independent Trustee
Jonas B. Siegel*                                          Jonas B. Siegel	Independent Trustee
/s/ John P. Buckel                                       John P. Buckel	President and Principal Executive Officer
Jennifer A. Lima*                                        Jennifer A. Lima	Vice President, Treasurer and Principal Financial and Accounting Officer
* By:        /s/ John P. Buckel                      John P. Buckel * Attorney-in-Fact pursuant to Power of Attorney previously filed with Registrant’s Post-Effective Amendment No. 603 to its Registration Statement on Form N-1A with the SEC on March 21, 2017, and is incorporated by reference.

EXHIBIT INDEX

Exhibit	Exhibit No.
Instance Document	EX-101.INS
Schema Document	EX-101.SCH
Calculation Linkbase Document	EX-101.CAL
Definition Linkbase Document	EX-101.DEF
Label Linkbase Document	EX-101.LAB
Presentation Linkbase Document	EX-101.PRE

XML

Document and Entity Information	Total
Prospectus:
Document Type	485BPOS
Document Period End Date	Feb. 28, 2018
Registrant Name	TRUST FOR PROFESSIONAL MANAGERS
Central Index Key	0001141819
Amendment Flag	false
Document Creation Date	Jun. 05, 2018
Document Effective Date	Jun. 05, 2018
Prospectus Date	Jun. 05, 2018
CrossingBridge Long/Short Credit Fund | CrossingBridge Long/Short Credit Fund - Institutional Class Shares
Prospectus:
Trading Symbol	CCLIX
CrossingBridge Long/Short Credit Fund | CrossingBridge Long/Short Credit Fund - Class A Shares
Prospectus:
Trading Symbol	CLCAX

XML

CrossingBridge Long/Short Credit Fund

CrossingBridge Long/Short Credit Fund

Investment Objective

The CrossingBridge Long/Short Credit Fund (the “Fund”) seeks absolute total returns over a complete market cycle.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.  You may qualify for sales charge discounts on Class A shares if you or your family invest, or agree to invest in the future, at least $50,000 in the Fund’s Class A shares.  More information about these and other discounts is available from your financial professional and under “Shareholder Information – Class A Sales Charge Reductions and Waivers” beginning on page 22 of this Prospectus and under “Additional Purchase and Redemption Information – Sales Charges on Class A Shares” beginning on page 48 of the Fund’s Statement of Additional Information (“SAI”).

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - CrossingBridge Long/Short Credit Fund	CrossingBridge Long/Short Credit Fund - Institutional Class Shares	CrossingBridge Long/Short Credit Fund - Class A Shares
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	5.00%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or the net asset value at redemption on share purchases of $1,000,000 or more that are redeemed within 12 months of purchase)	none	0.50%

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - CrossingBridge Long/Short Credit Fund		CrossingBridge Long/Short Credit Fund - Institutional Class Shares	CrossingBridge Long/Short Credit Fund - Class A Shares
Management Fees		1.25%	1.25%
Distribution (12b-1) Fees		none	0.25%
Other Expenses		0.83%	0.81%
Shareholder Servicing Plan Fees		0.10%	0.10%
Dividends and Interest Expense on Short Positions		0.43%	0.41%
Remainder of Other Expenses		0.30%	0.30%
Acquired Fund Fees and Expenses	[1]	0.07%	0.07%
Total Annual Fund Operating Expenses		2.15%	2.38%
Less: Fee Waiver and/or Expense Reimbursement		(0.30%)	(0.30%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	[2]	1.85%	2.08%

Example

This Example is intended to help you compare the costs of investing in the Fund with the cost of investing in other mutual funds.  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.  The operating expense limitation discussed in the table above is reflected only through May 7, 2020 .

Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expense Example - CrossingBridge Long/Short Credit Fund - USD ($)	One Year	Three Years	Five Years	Ten Years
CrossingBridge Long/Short Credit Fund - Institutional Class Shares	188	614	1,098	2,434
CrossingBridge Long/Short Credit Fund - Class A Shares	750	1,149	1,654	3,036

Portfolio Turnover

The Fund pays transaction costs, such as commissions or spreads, when it buys and sells securities (or “turns over” its portfolio).  A higher portfolio turnover rate may generate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account.  These costs, which are not reflected in the annual fund operating expenses or in the Example, affect the Fund’s performance.  During the most recent fiscal year, the Fund’s portfolio turnover rate was 116.33% of the average value of its portfolio.

Principal Investment Strategies

The Adviser believes that the Fund’s investment objective of seeking absolute total returns over a complete market cycle, typically three to five years, can be achieved primarily through a portfolio of long and short investments in Credit-Related Instruments (defined below).

The Fund’s investment strategy involves taking both long and short positions in a variety of Credit-Related Instrumentsbased on the perception of such securities being overvalued or undervalued and desire to lessen exposure to general market risk.  In making decisions to “sell short” a Credit-Related Instrument, many factors may be considered, including whether a security’s price target has been met, whether there has been an overvaluation of the issuer by the market, and whether there has been a clear deterioration of future earnings power.  The Fund’s net long exposure (the market value of long positions minus the market value of short positions) will vary over time based on the Adviser’s assessment of market conditions and other factors.  In general, it is anticipated that the Fund’s portfolio will not be more than 100% short.  With a long position, the Fund purchases a security outright, while with a short position, the Fund sells a security that it has borrowed.  When the Fund sells a security short, it borrows the security from a third party and sells it at the then-current market price.  The Fund is then obligated to buy the security on a later date so that it can return the security to the lender.”

In managing the Fund’s holdings, the Adviser combines a top-down, in-depth understanding of credit cycles with a bottom-up, fundamental research process and event-driven investment selection that the Adviser believes will produce consistent returns through all phases of economic and market cycles.

The Fund may invest in fixed income securities of U.S. and foreign issuers (including issuers located in emerging markets), and derivative instruments that are linked to fixed income securities (collectively, “Credit-Related Instruments”).  Under normal market conditions, the Fund invests at least 80% of its net assets (including any borrowings for investment purposes) in Credit-Related Instruments.  Credit-Related Instruments include corporate bonds, debt securities and other fixed income instruments issued by various U.S. and non-U.S. governments (including their agencies or instrumentalities) and private-sector entities, municipal securities, exchange-traded notes (“ETNs”), convertible securities, distressed debt securities, bank loan participations, and mortgage-backed and asset-backed securities and variable and floating rate securities.  The Fund’s investments in mortgage-backed and asset-backed securities may be issued by various U.S. Government, municipal or private-sector entities, and may consist of residential mortgage-backed securities and commercial mortgage-backed securities.  These investments may include securities of varying maturities, durations and ratings, including securities that have been rated below investment grade by a nationally recognized statistical ratings organization (“NRSRO”), commonly referred to as “junk bonds” or “high yield bonds.”  Credit-Related Instruments may also be secured or unsecured, or have various rankings (such as senior or subordinate) to other debt securities of the same issuer.  In addition to direct investments in Credit-Related Instruments and derivative instruments that are linked to Credit-Related Instruments, the Fund may invest in shares of other investment companies that invest in Credit-Related Instruments and derivative instruments that are linked to Credit-Related Instruments, including shares of exchange-traded funds (“ETFs”) or closed-end funds.

The Fund may also invest up to 20% of its net assets in equity instruments, including long and short positions in equity securities of companies with market capitalizations of any size, including common and preferred stock of U.S. and foreign issuers (including issuers located in emerging markets), equity swaps and derivative instruments that are linked to equity securities.  In addition to direct investments in equity securities and equity-linked instruments, the Fund may invest in shares of other investment companies and ETFs that invest in equity securities and equity-linked instruments.

The Fund’s investments in derivative instruments, specifically futures contracts, options, options on futures contracts, swap agreements and credit default swaps (collectively, “Derivatives”), may be used as a substitute for making direct investments in the underlying instruments or to reduce exposure to, or “hedge,” against market volatilities and other risks.  The Fund may use a Derivative investment rather than investing directly in an underlying asset class as a low-cost, effective means to gain exposure to an asset class.

Derivatives and short sale transactions involve the use of leverage.  Accordingly, the Fund will maintain long positions in securities available for collateral, consisting of cash, cash equivalents and other liquid securities, to meet any applicable asset coverage obligations under the 1940 Act.  The Fund is “non-diversified,” meaning that a relatively high percentage of its assets may be invested in a limited number of issuers of securities.

The Adviser monitors the Fund’s portfolio on a daily basis, and may sell or reduce a position when a more attractive investment becomes available or when the value of an investment becomes unattractive, taking into consideration current market conditions.  The Fund may also sell an investment based on the Adviser’s re-evaluation of an investment’s credit profile.

Principal Risks

Before investing in the Fund, you should carefully consider your own investment goals, the amount of time you are willing to leave your money invested, and the amount of risk you are willing to take.  Remember, in addition to possibly not achieving your investment goals, you could lose all or a portion of your investment in the Fund over long or even short periods of time.  The principal risks of investing in the Fund are:

· General Market Risk.  Certain investments selected for the Fund’s portfolio may be worth less than the price originally paid for them, or less than they were worth at an earlier time.  The value of the Fund’s investments may go up or down, sometimes dramatically and unpredictably, based on current market conditions, such as real or perceived adverse political or economic conditions, inflation, changes in interest rates, lack of liquidity in the fixed income markets or adverse investor sentiment.

· Recent Market Events Risk.  Changes in market conditions will not have the same impact on all types of securities.  In response to the global financial crisis that began in 2008, the U.S. government, the Federal Reserve and certain foreign banks took  steps to support financial markets, including by keeping interest rates at historically low levels.  More recently, the Federal Reserve has reduced its market support activities.  Further reduction or withdrawal of this support could negatively impact financial markets generally, and have, to a certain extent, resulted in higher interest rates and increased market volatility.  A rising interest rate environment may reduce the value and liquidity of certain securities held by the Fund.  The full impact of these changes on the markets, and the practical implications for market participants, may not be fully known for some time.

· Management Risk.  The Adviser’s judgments about the attractiveness, value and potential appreciation or depreciation of a particular security the Fund purchases or sells short, respectively, may prove to be incorrect and that the investment strategies employed by the Adviser in selecting investments for the Fund may not result in an increase in the value of your investment or in overall performance equal to other similar investment vehicles having similar investment strategies.

· Liquidity Risk.  Certain investments and markets can become illiquid at times and negatively impact the price of an investment if the Fund were to sell during times of illiquidity.

· Bank Loan Risk.  The Fund’s investments in secured and unsecured participations in bank loans and assignments of such loans may create substantial risk.  In making investments in such loans, which are made by banks or other financial intermediaries to borrowers, the Fund will depend primarily upon the creditworthiness of the borrower for payment of principal and interest.  Bank loans may not be securities and therefore may not have the protections afforded by the federal securities laws.  The settlement period for transactions involving bank loans may be longer than seven days.

· Convertible Securities Risk.  The market value of a convertible security will perform the same as a regular fixed income security; that is, if market interest rates rise, the value of the convertible security falls.  In the event of a liquidation of the issuing company, holders of convertible securities generally would be paid after the company’s creditors but before the company’s common shareholders.  Consequently, an issuer’s convertible securities generally may be viewed as having more risk than its debt securities but less risk than its common stock.

· Credit-Related Instruments Risk.  Interest rates may go up resulting in a decrease in the value of the securities held by the Fund.  Interest rates have been historically low, so the Fund faces a heightened risk that interest rates may rise.  Credit risk is the risk that an issuer will not make timely payments of principal and interest.  A credit rating assigned to a particular debt security is essentially the opinion of an NRSRO as to the credit quality of an issuer and may prove to be inaccurate.  There is also the risk that a bond issuer may “call,” or repay, its high yielding bonds before their maturity dates.  Debt securities subject to prepayment can offer less potential for gains during a declining interest rate environment and similar or greater potential for loss in a rising interest rate environment.  Limited trading opportunities for certain fixed income securities may make it more difficult to sell or buy a security at a favorable price or time, particularly during periods of market turmoil, and may also make these securities difficult to value.

· High-Yield Securities Risk.  The fixed income investments held by the Fund that are rated below investment grade, also known as “junk bonds”, are subject to additional risk factors such as increased possibility of default, illiquidity of the security, and changes in value based on public perception of the issuer.  Such securities are generally considered speculative because they present a greater risk of loss, including default, than higher quality fixed income investments.

· Distressed Securities Risk. The Fund’s investment in distressed securities may involve a substantial degree of risk.  These instruments, which involve loans, loan participations, bonds, notes, non-performing and sub-performing mortgage loans typically are unrated, lower-rated, in default or close to default.  Many of these instruments are not publicly traded, and may become illiquid. The prices of such instruments may be extremely volatile. Securities of distressed companies are generally more likely to become worthless than the securities of more financially stable companies. Valuing such instruments may be difficult, and the Fund may lose all of its investment, or it may be required to accept cash or securities with a value less than the Fund’s original investment. Issuers of distressed securities are typically in a weak financial condition and may default, in which case the Fund may lose its entire investment.

· Derivatives Risk.  Derivatives, including futures contracts, options, options on futures contracts, swap agreements and credit default swaps, may be more volatile than investments directly in the underlying securities, involve additional costs and may involve a small initial investment relative to the risk assumed, and may cause the Fund to lose more money than the principal amount invested in such instruments.  In addition, Derivatives also involve the risk of mispricing or improper valuation, andthe value of a Derivative may not correlate perfectly to the underlying financial asset, index or other investment or overall securities markets.  Specific types of Derivatives are also subject to a number of additional risks, such as:

· Options and Futures Risk.  Options and futures contracts may be more volatile than investments directly in the underlying securities, involve additional costs and may involve a small initial investment relative to the risk assumed.

· Swap Agreement Risk.  A swap contract may not be assigned without the consent of the counterparty, and may result in losses in the event of a default or bankruptcy of the counterparty.

· Credit Default Swap Risk.  Credit default swaps are subject to general market risk, liquidity risk and counterparty credit risk.  If the Fund is a buyer in a credit default swap agreement and no credit event occurs, then it will lose its investment.  If the Fund is a seller in a credit default swap and an event of default occurs, there may be a loss of value to the Fund.

· Liquidity Risk.  The Fund may not be able to sell or close out a derivative instrument.

· Interest Rate Risk.  Underlying investments may lose value due to interest rate changes.

· Credit Risk.  Underlying investments may lose value due to borrowers defaulting or failing to pay back debt.

· Counterparty Risk. Counterparty risk arises upon entering into borrowing arrangements or derivative transactions and is the risk from the potential inability or unwillingness of counterparties to meet the terms of their contacts.

· Short Sales Risk.  The risk of loss if the value of a security sold short increases prior to the delivery date, since the Fund must pay more for the security than it received from the purchaser in the short sale.  Therefore, the risk of loss may be unlimited.  In addition, the Fund must pay any dividends or interest payable that accrues on a security sold short until it is replaced.

· Foreign Investments Risk.  Investments in Credit-Related Instruments of foreign issuers involve certain risks not generally associated with investments in the securities of U.S. issuers, including changes in currency exchange rates, unstable political, social and economic conditions, a lack of adequate or accurate company information, differences in the way securities markets operate, less secure international banks or securities depositories than those in the U.S. and foreign controls on investment. In addition, individual foreign economies may differ favorably or unfavorably from the U.S. economy in such respects as growth of gross domestic product, rates of inflation, capital reinvestment, resources, self-sufficiency and balance of payments position.  Income earned on foreign investments may be subject to foreign withholding taxes.  The Fund may invest in emerging market countries, which can involve higher degrees of risk as compared with developed economies.

· Investment Company and Exchange-Traded Fund Risk.  When the Fund invests in other investment companies, including ETFs, it will bear additional expenses based on its pro rata share of the other investment company’s or ETF’s operating expenses, including the potential duplication of management fees.  The risk of owning an ETF generally reflects the risks of owning the underlying investments the ETF holds.  The Fund also will incur brokerage costs when it purchases and sells ETFs.ETFs may trade at a discount or premium to net asset value.

· Exchange-Traded Note Risk.  The value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in the underlying securities markets, changes in the applicable interest rates, changes in the issuer’s credit rating and economic, legal, political or geographic events that affect the referenced index.  In addition, the notes issued by ETNs and held by a fund are unsecured debt of the issuer.

· Government-Sponsored Entities Risk. The Fund invests in securities issued or guaranteed by government-sponsored entities.  However, these securities may not be guaranteed or insured by the U.S. Government and may only be supported by the credit of the issuing agency.

· Asset-Backed and Mortgage-Backed Securities Risk.  Asset-backed and mortgage-backed securities are subject to risk of prepayment.  These types of securities may also decline in value because of mortgage foreclosures or defaults on the underlying obligations.  Asset-backed and mortgage-backed securities are also subject to extension risk, the risk that rising interest rates could cause prepayments to decrease, extending the life of asset-backed and mortgage-backed securities with lower payment rates.

· Municipal Securities Risk.  The value of municipal securities may be adversely affected by local political and economic factors, supply and demand factors, the creditworthiness of the issuer, or the ability of the issuer or projects backing such securities to generate taxes or revenues.

· Equity Securities Risk. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change.  Preferred stocks are subject to the risk that the dividend on the stock may be changed or omitted by the issuer, and that participation in the growth of an issuer may be limited.

· 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.

· Leverage Risk.  Leverage is the practice of borrowing money to purchase securities.  Investments in Derivatives and selling securities short also involve the use of leverage.  Leverage can increase the investment returns of the Fund.  However, if the securities decrease in value, the Fund will suffer a greater loss than would have resulted without the use of leverage.  The Fund will maintain long positions in securities available for collateral, consisting of cash, cash equivalents, and other liquid securities, to meet any applicable asset coverage obligations under the 1940 Act.  However, if the value of such collateral declines, margin calls by lending brokers could result in the liquidation of collateral securities at disadvantageous prices.

· Tax Risk.  The Fund’s investment strategies, specifically its investments in Derivatives, may subject the Fund to special tax rules, the effect of which may be to accelerate income to the Fund, defer losses to the Fund, cause adjustments in the holding periods of the Fund’s securities, convert long-term capital gains into short-term capital gains or convert short-term capital losses into long-term capital losses.

· Cybersecurity Risk.  With the increased use of technologies such as the Internet to conduct business, the Fund is susceptible to operational, information security, and related risks.  Cyber incidents affecting the Fund or its service providers may cause disruptions and impact business operations, potentially resulting in financial losses, interference with the Fund’s ability to calculate its NAV, impediments to trading, the inability of shareholders to transact business, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, or additional compliance costs.

Performance

The performance information provides some indication of the risks of investing in the Fund by showing the Fund’s performance for the past calendar year and by showing how the Fund’s average annual returns for one year and since inception compare with those of a broad measure of market performance.  Past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.  Updated performance information is available on the Fund’s website at www.crossingbridgefunds.com or by calling the Fund toll-free at 888-898-2780.

Calendar Year Total Return as of December 31*

* The returns shown in the bar chart are for Institutional Class shares of the Fund.  Class A shares would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the classes do not have the same expenses.

The Fund’s calendar year-to-date return for Institutional Class shares as of March 31, 2018 was 0.06%.  During the period of time shown in the bar chart, the Fund’s highest quarterly return was 2.55% for the quarter ended June 30, 2016, and the lowest quarterly return was -0.31% for the quarter ended September 30, 2017.

Average Annual Total Returns as of December 31, 2017

Average Annual Returns - CrossingBridge Long/Short Credit Fund	Label	Averagel Annual Returns, 1 Year	Averagel Annual Returns, Since Inception	Averagel Annual Returns, Inception Date
CrossingBridge Long/Short Credit Fund - Institutional Class Shares	Institutional Class Return Before Taxes	0.93%	2.19%	Feb. 27, 2015
CrossingBridge Long/Short Credit Fund - Class A Shares	Class A Shares Return Before Taxes	(4.40%)	0.08%	Feb. 27, 2015
After Taxes on Distributions | CrossingBridge Long/Short Credit Fund - Institutional Class Shares	Institutional Class Return After Taxes on Distributions	(0.31%)	0.81%
After Taxes on Distributions and Sale of Fund Shares | CrossingBridge Long/Short Credit Fund - Institutional Class Shares	Institutional Class Return After Taxes on Distributions and Sale of Fund Shares	0.53%	1.04%
Bloomberg Barclays U.S. Aggregate Total Return Bond Index (reflects no deduction for fees, expenses or taxes)	Bloomberg Barclays U.S. Aggregate Total Return Bond Index (reflects no deduction for fees, expenses or taxes)	7.50%	5.58%	Feb. 27, 2015

After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.  Actual after-tax returns depend on your tax situation and may differ from those shown.  The after-tax returns shown are not relevant to shareholders who hold their shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”).  After-tax returns are shown only for the Institutional Class shares.  The after-tax returns for Class A shares will vary.  The Class A returns shown above reflect applicable sales charges.

In certain cases, the figure representing “Returns After Taxes on Distributions and Sale of Fund Shares” may be higher than the other return figures in the table for the same period.  A higher after-tax return results when a capital loss occurs upon redemption and provides an assumed tax deduction that benefits the investor.

[1] Please note that Total Annual Fund Operating Expenses in the table above do not correlate to the ratio of Expenses to Average Net Assets found within the "Financial Highlights" section of this Prospectus, which does not include Acquired Fund Fees and Expenses.

[2] Pursuant to an operating expense limitation agreement between CrossingBridge Advisors, LLC (the "Adviser"), the Fund's investment adviser, and the Fund, the Adviser has agreed to waive its management fees and/or reimburse Fund expenses to ensure that Total Annual Fund Operating Expenses (exclusive of front-end or contingent deferred loads, Rule 12b-1 plan fees, shareholder servicing plan fees, taxes, interest (including interest incurred in connection with bank and custody overdrafts) leverage (i.e., any expenses incurred in connection with borrowings made by the Fund), dividends and interest expenses on short positions, acquired fund fees and expenses, brokerage commissions and other transaction expenses, expenses incurred in connection with any merger or reorganization, proxy expenses, and extraordinary expenses (collectively "Excluded Expenses")) do not exceed 1.25% of the Fund's average annual net assets, through at least May 7, 2020. To the extent the Fund incurs Excluded Expenses, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement may be greater than 1.25%. The operating expense limitation agreement can be terminated only by, or with the consent of, the Trust's Board of Trustees (the "Board of Trustees"). The Adviser may request recoupment of previously waived fees and paid expenses from the Fund up to three years from the date such fees and expenses were waived or paid, subject to the operating expense limitation agreement, if such reimbursement will not cause the Fund's expense ratio, after recoupment has been taken into account, to exceed the lesser of: (1) the expense limitation in place at the time of the waiver and/or expense payment; or (2) the expense limitation in place at the time of the recoupment.

XML

Label

Element

Value

CrossingBridge Long/Short Credit Fund

Risk/Return:

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Risk/Return [Heading]

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CrossingBridge Long/Short Credit Fund

Objective [Heading]

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Investment Objective

Objective, Primary [Text Block]

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The CrossingBridge Long/Short Credit Fund (the “Fund”) seeks absolute total returns over a complete market cycle.

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.  You may qualify for sales charge discounts on Class A shares if you or your family invest, or agree to invest in the future, at least $50,000 in the Fund’s Class A shares.  More information about these and other discounts is available from your financial professional and under “Shareholder Information – Class A Sales Charge Reductions and Waivers” beginning on page 22 of this Prospectus and under “Additional Purchase and Redemption Information – Sales Charges on Class A Shares” beginning on page 48 of the Fund’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

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Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

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Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

May 07, 2020

Portfolio Turnover [Heading]

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Portfolio Turnover

Portfolio Turnover [Text Block]

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The Fund pays transaction costs, such as commissions or spreads, when it buys and sells securities (or “turns over” its portfolio).  A higher portfolio turnover rate may generate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account.  These costs, which are not reflected in the annual fund operating expenses or in the Example, affect the Fund’s performance.  During the most recent fiscal year, the Fund’s portfolio turnover rate was 116.33% of the average value of its portfolio.

Portfolio Turnover, Rate

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116.33%

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

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Please note that Total Annual Fund Operating Expenses in the table above do not correlate to the ratio of Expenses to Average Net Assets found within the “Financial Highlights” section of this Prospectus, which does not include Acquired Fund Fees and Expenses.

Expense Example [Heading]

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Example

Expense Example Narrative [Text Block]

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This Example is intended to help you compare the costs of investing in the Fund with the cost of investing in other mutual funds.  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.  The operating expense limitation discussed in the table above is reflected only through May 7, 2020 .

Expense Example by, Year, Caption [Text]

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Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Strategy [Heading]

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Principal Investment Strategies

Strategy Narrative [Text Block]

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The Adviser believes that the Fund’s investment objective of seeking absolute total returns over a complete market cycle, typically three to five years, can be achieved primarily through a portfolio of long and short investments in Credit-Related Instruments (defined below).

The Fund’s investment strategy involves taking both long and short positions in a variety of Credit-Related Instrumentsbased on the perception of such securities being overvalued or undervalued and desire to lessen exposure to general market risk.  In making decisions to “sell short” a Credit-Related Instrument, many factors may be considered, including whether a security’s price target has been met, whether there has been an overvaluation of the issuer by the market, and whether there has been a clear deterioration of future earnings power.  The Fund’s net long exposure (the market value of long positions minus the market value of short positions) will vary over time based on the Adviser’s assessment of market conditions and other factors.  In general, it is anticipated that the Fund’s portfolio will not be more than 100% short.  With a long position, the Fund purchases a security outright, while with a short position, the Fund sells a security that it has borrowed.  When the Fund sells a security short, it borrows the security from a third party and sells it at the then-current market price.  The Fund is then obligated to buy the security on a later date so that it can return the security to the lender.”

In managing the Fund’s holdings, the Adviser combines a top-down, in-depth understanding of credit cycles with a bottom-up, fundamental research process and event-driven investment selection that the Adviser believes will produce consistent returns through all phases of economic and market cycles.

The Fund may invest in fixed income securities of U.S. and foreign issuers (including issuers located in emerging markets), and derivative instruments that are linked to fixed income securities (collectively, “Credit-Related Instruments”).  Under normal market conditions, the Fund invests at least 80% of its net assets (including any borrowings for investment purposes) in Credit-Related Instruments.  Credit-Related Instruments include corporate bonds, debt securities and other fixed income instruments issued by various U.S. and non-U.S. governments (including their agencies or instrumentalities) and private-sector entities, municipal securities, exchange-traded notes (“ETNs”), convertible securities, distressed debt securities, bank loan participations, and mortgage-backed and asset-backed securities and variable and floating rate securities.  The Fund’s investments in mortgage-backed and asset-backed securities may be issued by various U.S. Government, municipal or private-sector entities, and may consist of residential mortgage-backed securities and commercial mortgage-backed securities.  These investments may include securities of varying maturities, durations and ratings, including securities that have been rated below investment grade by a nationally recognized statistical ratings organization (“NRSRO”), commonly referred to as “junk bonds” or “high yield bonds.”  Credit-Related Instruments may also be secured or unsecured, or have various rankings (such as senior or subordinate) to other debt securities of the same issuer.  In addition to direct investments in Credit-Related Instruments and derivative instruments that are linked to Credit-Related Instruments, the Fund may invest in shares of other investment companies that invest in Credit-Related Instruments and derivative instruments that are linked to Credit-Related Instruments, including shares of exchange-traded funds (“ETFs”) or closed-end funds.

The Fund may also invest up to 20% of its net assets in equity instruments, including long and short positions in equity securities of companies with market capitalizations of any size, including common and preferred stock of U.S. and foreign issuers (including issuers located in emerging markets), equity swaps and derivative instruments that are linked to equity securities.  In addition to direct investments in equity securities and equity-linked instruments, the Fund may invest in shares of other investment companies and ETFs that invest in equity securities and equity-linked instruments.

The Fund’s investments in derivative instruments, specifically futures contracts, options, options on futures contracts, swap agreements and credit default swaps (collectively, “Derivatives”), may be used as a substitute for making direct investments in the underlying instruments or to reduce exposure to, or “hedge,” against market volatilities and other risks.  The Fund may use a Derivative investment rather than investing directly in an underlying asset class as a low-cost, effective means to gain exposure to an asset class.

Derivatives and short sale transactions involve the use of leverage.  Accordingly, the Fund will maintain long positions in securities available for collateral, consisting of cash, cash equivalents and other liquid securities, to meet any applicable asset coverage obligations under the 1940 Act.  The Fund is “non-diversified,” meaning that a relatively high percentage of its assets may be invested in a limited number of issuers of securities.

The Adviser monitors the Fund’s portfolio on a daily basis, and may sell or reduce a position when a more attractive investment becomes available or when the value of an investment becomes unattractive, taking into consideration current market conditions.  The Fund may also sell an investment based on the Adviser’s re-evaluation of an investment’s credit profile.

Risk [Heading]

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Principal Risks

Risk Narrative [Text Block]

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Before investing in the Fund, you should carefully consider your own investment goals, the amount of time you are willing to leave your money invested, and the amount of risk you are willing to take.  Remember, in addition to possibly not achieving your investment goals, you could lose all or a portion of your investment in the Fund over long or even short periods of time.  The principal risks of investing in the Fund are:

· General Market Risk.  Certain investments selected for the Fund’s portfolio may be worth less than the price originally paid for them, or less than they were worth at an earlier time.  The value of the Fund’s investments may go up or down, sometimes dramatically and unpredictably, based on current market conditions, such as real or perceived adverse political or economic conditions, inflation, changes in interest rates, lack of liquidity in the fixed income markets or adverse investor sentiment.

· Recent Market Events Risk.  Changes in market conditions will not have the same impact on all types of securities.  In response to the global financial crisis that began in 2008, the U.S. government, the Federal Reserve and certain foreign banks took  steps to support financial markets, including by keeping interest rates at historically low levels.  More recently, the Federal Reserve has reduced its market support activities.  Further reduction or withdrawal of this support could negatively impact financial markets generally, and have, to a certain extent, resulted in higher interest rates and increased market volatility.  A rising interest rate environment may reduce the value and liquidity of certain securities held by the Fund.  The full impact of these changes on the markets, and the practical implications for market participants, may not be fully known for some time.

· Management Risk.  The Adviser’s judgments about the attractiveness, value and potential appreciation or depreciation of a particular security the Fund purchases or sells short, respectively, may prove to be incorrect and that the investment strategies employed by the Adviser in selecting investments for the Fund may not result in an increase in the value of your investment or in overall performance equal to other similar investment vehicles having similar investment strategies.

· Liquidity Risk.  Certain investments and markets can become illiquid at times and negatively impact the price of an investment if the Fund were to sell during times of illiquidity.

· Bank Loan Risk.  The Fund’s investments in secured and unsecured participations in bank loans and assignments of such loans may create substantial risk.  In making investments in such loans, which are made by banks or other financial intermediaries to borrowers, the Fund will depend primarily upon the creditworthiness of the borrower for payment of principal and interest.  Bank loans may not be securities and therefore may not have the protections afforded by the federal securities laws.  The settlement period for transactions involving bank loans may be longer than seven days.

· Convertible Securities Risk.  The market value of a convertible security will perform the same as a regular fixed income security; that is, if market interest rates rise, the value of the convertible security falls.  In the event of a liquidation of the issuing company, holders of convertible securities generally would be paid after the company’s creditors but before the company’s common shareholders.  Consequently, an issuer’s convertible securities generally may be viewed as having more risk than its debt securities but less risk than its common stock.

· Credit-Related Instruments Risk.  Interest rates may go up resulting in a decrease in the value of the securities held by the Fund.  Interest rates have been historically low, so the Fund faces a heightened risk that interest rates may rise.  Credit risk is the risk that an issuer will not make timely payments of principal and interest.  A credit rating assigned to a particular debt security is essentially the opinion of an NRSRO as to the credit quality of an issuer and may prove to be inaccurate.  There is also the risk that a bond issuer may “call,” or repay, its high yielding bonds before their maturity dates.  Debt securities subject to prepayment can offer less potential for gains during a declining interest rate environment and similar or greater potential for loss in a rising interest rate environment.  Limited trading opportunities for certain fixed income securities may make it more difficult to sell or buy a security at a favorable price or time, particularly during periods of market turmoil, and may also make these securities difficult to value.

· High-Yield Securities Risk.  The fixed income investments held by the Fund that are rated below investment grade, also known as “junk bonds”, are subject to additional risk factors such as increased possibility of default, illiquidity of the security, and changes in value based on public perception of the issuer.  Such securities are generally considered speculative because they present a greater risk of loss, including default, than higher quality fixed income investments.

· Distressed Securities Risk. The Fund’s investment in distressed securities may involve a substantial degree of risk.  These instruments, which involve loans, loan participations, bonds, notes, non-performing and sub-performing mortgage loans typically are unrated, lower-rated, in default or close to default.  Many of these instruments are not publicly traded, and may become illiquid. The prices of such instruments may be extremely volatile. Securities of distressed companies are generally more likely to become worthless than the securities of more financially stable companies. Valuing such instruments may be difficult, and the Fund may lose all of its investment, or it may be required to accept cash or securities with a value less than the Fund’s original investment. Issuers of distressed securities are typically in a weak financial condition and may default, in which case the Fund may lose its entire investment.

· Derivatives Risk.  Derivatives, including futures contracts, options, options on futures contracts, swap agreements and credit default swaps, may be more volatile than investments directly in the underlying securities, involve additional costs and may involve a small initial investment relative to the risk assumed, and may cause the Fund to lose more money than the principal amount invested in such instruments.  In addition, Derivatives also involve the risk of mispricing or improper valuation, andthe value of a Derivative may not correlate perfectly to the underlying financial asset, index or other investment or overall securities markets.  Specific types of Derivatives are also subject to a number of additional risks, such as:

· Options and Futures Risk.  Options and futures contracts may be more volatile than investments directly in the underlying securities, involve additional costs and may involve a small initial investment relative to the risk assumed.

· Swap Agreement Risk.  A swap contract may not be assigned without the consent of the counterparty, and may result in losses in the event of a default or bankruptcy of the counterparty.

· Credit Default Swap Risk.  Credit default swaps are subject to general market risk, liquidity risk and counterparty credit risk.  If the Fund is a buyer in a credit default swap agreement and no credit event occurs, then it will lose its investment.  If the Fund is a seller in a credit default swap and an event of default occurs, there may be a loss of value to the Fund.

· Liquidity Risk.  The Fund may not be able to sell or close out a derivative instrument.

· Interest Rate Risk.  Underlying investments may lose value due to interest rate changes.

· Credit Risk.  Underlying investments may lose value due to borrowers defaulting or failing to pay back debt.

· Counterparty Risk. Counterparty risk arises upon entering into borrowing arrangements or derivative transactions and is the risk from the potential inability or unwillingness of counterparties to meet the terms of their contacts.

· Short Sales Risk.  The risk of loss if the value of a security sold short increases prior to the delivery date, since the Fund must pay more for the security than it received from the purchaser in the short sale.  Therefore, the risk of loss may be unlimited.  In addition, the Fund must pay any dividends or interest payable that accrues on a security sold short until it is replaced.

· Foreign Investments Risk.  Investments in Credit-Related Instruments of foreign issuers involve certain risks not generally associated with investments in the securities of U.S. issuers, including changes in currency exchange rates, unstable political, social and economic conditions, a lack of adequate or accurate company information, differences in the way securities markets operate, less secure international banks or securities depositories than those in the U.S. and foreign controls on investment. In addition, individual foreign economies may differ favorably or unfavorably from the U.S. economy in such respects as growth of gross domestic product, rates of inflation, capital reinvestment, resources, self-sufficiency and balance of payments position.  Income earned on foreign investments may be subject to foreign withholding taxes.  The Fund may invest in emerging market countries, which can involve higher degrees of risk as compared with developed economies.

· Investment Company and Exchange-Traded Fund Risk.  When the Fund invests in other investment companies, including ETFs, it will bear additional expenses based on its pro rata share of the other investment company’s or ETF’s operating expenses, including the potential duplication of management fees.  The risk of owning an ETF generally reflects the risks of owning the underlying investments the ETF holds.  The Fund also will incur brokerage costs when it purchases and sells ETFs.ETFs may trade at a discount or premium to net asset value.

· Exchange-Traded Note Risk.  The value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in the underlying securities markets, changes in the applicable interest rates, changes in the issuer’s credit rating and economic, legal, political or geographic events that affect the referenced index.  In addition, the notes issued by ETNs and held by a fund are unsecured debt of the issuer.

· Government-Sponsored Entities Risk. The Fund invests in securities issued or guaranteed by government-sponsored entities.  However, these securities may not be guaranteed or insured by the U.S. Government and may only be supported by the credit of the issuing agency.

· Asset-Backed and Mortgage-Backed Securities Risk.  Asset-backed and mortgage-backed securities are subject to risk of prepayment.  These types of securities may also decline in value because of mortgage foreclosures or defaults on the underlying obligations.  Asset-backed and mortgage-backed securities are also subject to extension risk, the risk that rising interest rates could cause prepayments to decrease, extending the life of asset-backed and mortgage-backed securities with lower payment rates.

· Municipal Securities Risk.  The value of municipal securities may be adversely affected by local political and economic factors, supply and demand factors, the creditworthiness of the issuer, or the ability of the issuer or projects backing such securities to generate taxes or revenues.

· Equity Securities Risk. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change.  Preferred stocks are subject to the risk that the dividend on the stock may be changed or omitted by the issuer, and that participation in the growth of an issuer may be limited.

· 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.

· Leverage Risk.  Leverage is the practice of borrowing money to purchase securities.  Investments in Derivatives and selling securities short also involve the use of leverage.  Leverage can increase the investment returns of the Fund.  However, if the securities decrease in value, the Fund will suffer a greater loss than would have resulted without the use of leverage.  The Fund will maintain long positions in securities available for collateral, consisting of cash, cash equivalents, and other liquid securities, to meet any applicable asset coverage obligations under the 1940 Act.  However, if the value of such collateral declines, margin calls by lending brokers could result in the liquidation of collateral securities at disadvantageous prices.

· Tax Risk.  The Fund’s investment strategies, specifically its investments in Derivatives, may subject the Fund to special tax rules, the effect of which may be to accelerate income to the Fund, defer losses to the Fund, cause adjustments in the holding periods of the Fund’s securities, convert long-term capital gains into short-term capital gains or convert short-term capital losses into long-term capital losses.

· Cybersecurity Risk.  With the increased use of technologies such as the Internet to conduct business, the Fund is susceptible to operational, information security, and related risks.  Cyber incidents affecting the Fund or its service providers may cause disruptions and impact business operations, potentially resulting in financial losses, interference with the Fund’s ability to calculate its NAV, impediments to trading, the inability of shareholders to transact business, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, or additional compliance costs.

Risk Lose Money [Text]

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Remember, in addition to possibly not achieving your investment goals, you could lose all or a portion of your investment in the Fund over long or even short periods of time.

Risk Nondiversified Status [Text]

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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]

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Performance

Performance Narrative [Text Block]

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The performance information provides some indication of the risks of investing in the Fund by showing the Fund’s performance for the past calendar year and by showing how the Fund’s average annual returns for one year and since inception compare with those of a broad measure of market performance.  Past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.  Updated performance information is available on the Fund’s website at www.crossingbridgefunds.com or by calling the Fund toll-free at 888-898-2780.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The performance information provides some indication of the risks of investing in the Fund by showing the Fund’s performance for the past calendar year and by showing how the Fund’s average annual returns for one year and since inception compare with those of a broad measure of market performance.

Performance Availability Phone [Text]

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888-898-2780

Performance Availability Website Address [Text]

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www.crossingbridgefunds.com

Performance Past Does Not Indicate Future [Text]

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Past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

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Calendar Year Total Return as of December 31*

Bar Chart Footnotes [Text Block]

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* The returns shown in the bar chart are for Institutional Class shares of the Fund.  Class A shares would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the classes do not have the same expenses.

Bar Chart Closing [Text Block]

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The Fund’s calendar year-to-date return for Institutional Class shares as of March 31, 2018 was 0.06%.  During the period of time shown in the bar chart, the Fund’s highest quarterly return was 2.55% for the quarter ended June 30, 2016, and the lowest quarterly return was -0.31% for the quarter ended September 30, 2017.

Year to Date Return, Label

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year-to-date return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Mar. 31, 2018

Bar Chart, Year to Date Return

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0.06%

Highest Quarterly Return, Label

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highest quarterly return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2016

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

2.55%

Lowest Quarterly Return, Label

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lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2017

Lowest Quarterly Return

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(0.31%)

Performance Table Does Reflect Sales Loads

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The Class A returns shown above reflect applicable sales charges.

Index No Deduction for Fees, Expenses, Taxes [Text]

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(reflects no deduction for fees, expenses or taxes)

Performance Table Uses Highest Federal Rate

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After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

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Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to shareholders who hold their shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”).

Performance Table One Class of after Tax Shown [Text]

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After-tax returns are shown only for the Institutional Class shares. The after-tax returns for Class A shares will vary.

Performance Table Explanation after Tax Higher

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In certain cases, the figure representing “Returns After Taxes on Distributions and Sale of Fund Shares” may be higher than the other return figures in the table for the same period. A higher after-tax return results when a capital loss occurs upon redemption and provides an assumed tax deduction that benefits the investor.

Performance Table Closing [Text Block]

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After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.  Actual after-tax returns depend on your tax situation and may differ from those shown.  The after-tax returns shown are not relevant to shareholders who hold their shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”).  After-tax returns are shown only for the Institutional Class shares.  The after-tax returns for Class A shares will vary.  The Class A returns shown above reflect applicable sales charges.

In certain cases, the figure representing “Returns After Taxes on Distributions and Sale of Fund Shares” may be higher than the other return figures in the table for the same period.  A higher after-tax return results when a capital loss occurs upon redemption and provides an assumed tax deduction that benefits the investor.

Caption

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Average Annual Total Returns as of December 31, 2017

CrossingBridge Long/Short Credit Fund | Bloomberg Barclays U.S. Aggregate Total Return Bond Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

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Label

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Bloomberg Barclays U.S. Aggregate Total Return Bond Index (reflects no deduction for fees, expenses or taxes)

Averagel Annual Returns, 1 Year

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7.50%

Averagel Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

5.58%

Averagel Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Feb. 27, 2015

CrossingBridge Long/Short Credit Fund | CrossingBridge Long/Short Credit Fund - Institutional Class Shares

Risk/Return:

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Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or the net asset value at redemption on share purchases of $1,000,000 or more that are redeemed within 12 months of purchase)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

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1.25%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Servicing Plan Fees

rr_Component1OtherExpensesOverAssets

0.10%

Dividends and Interest Expense on Short Positions

rr_Component2OtherExpensesOverAssets

0.43%

Remainder of Other Expenses

rr_Component3OtherExpensesOverAssets

0.30%

Other Expenses

rr_OtherExpensesOverAssets

0.83%

Acquired Fund Fees and Expenses

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0.07%

^[1]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.15%

Less: Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.30%)

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.85%

^[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 188

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

614

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,098

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 2,434

Annual Return 2016

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6.77%

Annual Return 2017

rr_AnnualReturn2017

0.93%

Label

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Institutional Class Return Before Taxes

Averagel Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

0.93%

Averagel Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

2.19%

Averagel Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Feb. 27, 2015

CrossingBridge Long/Short Credit Fund | CrossingBridge Long/Short Credit Fund - Institutional Class Shares | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

Institutional Class Return After Taxes on Distributions

Averagel Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

(0.31%)

Averagel Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

0.81%

CrossingBridge Long/Short Credit Fund | CrossingBridge Long/Short Credit Fund - Institutional Class Shares | After Taxes on Distributions and Sale of Fund Shares

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

Institutional Class Return After Taxes on Distributions and Sale of Fund Shares

Averagel Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

0.53%

Averagel Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

1.04%

CrossingBridge Long/Short Credit Fund | CrossingBridge Long/Short Credit Fund - Class A Shares

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.00%

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or the net asset value at redemption on share purchases of $1,000,000 or more that are redeemed within 12 months of purchase)

rr_MaximumDeferredSalesChargeOverOfferingPrice

0.50%

Management Fees

rr_ManagementFeesOverAssets

1.25%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Servicing Plan Fees

rr_Component1OtherExpensesOverAssets

0.10%

Dividends and Interest Expense on Short Positions

rr_Component2OtherExpensesOverAssets

0.41%

Remainder of Other Expenses

rr_Component3OtherExpensesOverAssets

0.30%

Other Expenses

rr_OtherExpensesOverAssets

0.81%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.07%

^[1]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.38%

Less: Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.30%)

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

2.08%

^[2]

Expense Breakpoint Discounts [Text]

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You may qualify for sales charge discounts on Class A shares if you or your family invest, or agree to invest in the future, at least $50,000 in the Fund’s Class A shares.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

750

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

1,149

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,654

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 3,036

Label

rr_AverageAnnualReturnLabel

Class A Shares Return Before Taxes

Averagel Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

(4.40%)

Averagel Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

0.08%

Averagel Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Feb. 27, 2015

[1] Please note that Total Annual Fund Operating Expenses in the table above do not correlate to the ratio of Expenses to Average Net Assets found within the "Financial Highlights" section of this Prospectus, which does not include Acquired Fund Fees and Expenses.

[2] Pursuant to an operating expense limitation agreement between CrossingBridge Advisors, LLC (the "Adviser"), the Fund's investment adviser, and the Fund, the Adviser has agreed to waive its management fees and/or reimburse Fund expenses to ensure that Total Annual Fund Operating Expenses (exclusive of front-end or contingent deferred loads, Rule 12b-1 plan fees, shareholder servicing plan fees, taxes, interest (including interest incurred in connection with bank and custody overdrafts) leverage (i.e., any expenses incurred in connection with borrowings made by the Fund), dividends and interest expenses on short positions, acquired fund fees and expenses, brokerage commissions and other transaction expenses, expenses incurred in connection with any merger or reorganization, proxy expenses, and extraordinary expenses (collectively "Excluded Expenses")) do not exceed 1.25% of the Fund's average annual net assets, through at least May 7, 2020. To the extent the Fund incurs Excluded Expenses, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement may be greater than 1.25%. The operating expense limitation agreement can be terminated only by, or with the consent of, the Trust's Board of Trustees (the "Board of Trustees"). The Adviser may request recoupment of previously waived fees and paid expenses from the Fund up to three years from the date such fees and expenses were waived or paid, subject to the operating expense limitation agreement, if such reimbursement will not cause the Fund's expense ratio, after recoupment has been taken into account, to exceed the lesser of: (1) the expense limitation in place at the time of the waiver and/or expense payment; or (2) the expense limitation in place at the time of the recoupment.

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Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Prospectus Date	rr_ProspectusDate	Jun. 05, 2018