485BPOS

As filed with the Securities and Exchange Commission on October 5, 2012

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.	339	[X]

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940		[X]
Amendment No.	341	[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

Rachel A. Spearo, Esq.

U.S. Bancorp Fund Services, LLC

615 East Michigan Street, 2nd Floor

Milwaukee, Wisconsin 53202

(Name and Address of Agent for Service)

Copies to:

Carol A. Gehl, Esq.

Godfrey & Kahn, S.C.

780 North Water Street

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).
[   ]	on (date) pursuant to Rule 485(a)(1).
[   ]	60 days after filing 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. 339 hereby incorporates Parts A, B and C from the Fund’s PEA No. 331 on Form N-1A filed September 21, 2012.  This PEA No. 339 is filed for the sole purpose of submitting the XBRL exhibit for the risk/return summary first provided in PEA No. 331.

1

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, (the “Act”) and the Investment Company Act of 1940, as amended, the Registrant certifies that this Post-Effective Amendment No. 339 to its Registration Statement meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Act and the Registrant has duly caused this Post-Effective Amendment No. 339 to its Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the County of Milwaukee and State of Wisconsin, on the 5th day of October, 2012.

TRUST FOR PROFESSIONAL MANAGERS

By:  /s/ John P. Buckel

John P. Buckel

Vice President, Treasurer and Principal Accounting Officer

Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 339 to its Registration Statement has been signed below on October 5, 2012, by the following persons in the capacities indicated.

Signature	Title
Joseph C. Neuberger* Joseph C. Neuberger	Chairperson, President and Trustee
Dr. Michael D. Akers* Dr. Michael D. Akers	Independent Trustee
Gary A. Drska* Gary A. Drska	Independent Trustee
Jonas B. Siegel* Jonas B. Siegel	Independent Trustee
* By:      /s/ John Buckel

John Buckel

*Attorney-in-Fact pursuant to Power of Attorney

previously filed with Registrant’s Post-Effective

Amendment No. 289 to its Registration Statement

on Form N-1A with the SEC on February 15, 2012,

and is incorporated by reference.

2

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

3

XML

Barrett Growth Fund (Prospectus Summary) | Barrett Growth Fund

Barrett Growth Fund

Investment Objective

The Barrett Growth Fund (the "Fund") seeks to achieve long-term capital
appreciation and to maximize after-tax returns.

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.

Shareholder Fees (fees paid directly from your investment) None

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

Annual Fund Operating Expenses		Barrett Growth Fund
Management Fees		1.00%
Distribution and Service (12b-1) Fees	[1]	none
Other Expenses		1.36%
Total Annual Fund Operating Expenses	[2]	2.36%
Fee Waiver/Expense Reimbursement		(1.11%)
Total Annual Fund Operating Expenses After Fee Waiver/Expense Reimbursement	[3]	1.25%

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 fee waiver/expense reimbursement arrangement discussed
in the table above is reflected only through September 28, 2013.

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

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Barrett Growth Fund	146	648	1,177	2,626

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover rate
may indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These transaction costs, and potentially
higher taxes, 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 19.27% of the average value of its
portfolio.

Principal Investment Strategies

The Fund invests primarily in a diversified portfolio of common stocks of large-
and mid-cap U.S. companies selected by the Adviser. The Fund considers mid-cap
companies to be companies with market capitalizations of approximately $1
billion to $10 billion and large-cap companies to be companies with market
capitalizations greater than $10 billion. The Fund may also purchase securities
with an equity component, such as preferred stock, warrants, rights or other
securities that are convertible into or exchangeable for shares of common
stock. The Fund may invest up to 25% of its net assets in foreign securities,
and will normally make such investments through the purchase of American
Depositary Receipts ("ADRs").

The Fund takes a conservative approach to growth stock investing that emphasizes
"Growth at a Reasonable Price." The Fund invests in common stocks of high-quality
companies that Barrett believes have superior growth potential and stocks that can
be purchased at reasonable prices. The Fund makes investments in companies that
have solid long-term earnings prospects and the Fund expects to hold these investments
for prolonged periods of time, thereby avoiding short-term capital gains. The Adviser
focuses on identifying companies that will produce earnings and cash flow growth in
excess of companies in the Standard & Poor's 500 Composite Stock Price Index ("S&P
500® Index"). The Adviser makes investments in companies that it believes produce
superior earnings at reasonable valuations. Superior relative earnings growth is
usually driven by new products and services; niche products in growth sectors and
industries; open-ended global growth opportunities; and cyclical companies whose
margins are benefiting from a recovery in their respective industries. Stocks are
sold when there is likely to be deterioration in earnings growth or other financial
metrics, including balance sheet items. Maintaining a competitive industry position
and management stability are also important factors in retaining a company position.
Unusually weak relative stock market performance is another signal that prompts the
Adviser to immediately reevaluate a holding.

The Adviser mitigates risk in several ways. In order to invest in a specific
company the Adviser carefully analyzes the company's balance sheet and overall
ability to withstand adverse economic conditions. More broadly, the Adviser
diversifies the portfolio across multiple industries, economic sectors and
geographic regions to reduce the risk of a particular industry's or region's
weakness adversely affecting the total Fund. Since the Adviser focuses on buying
companies at reasonable valuations, the risk of overpaying for companies with
strong earnings growth is also reduced. The Fund invests in companies across the
large - and mid-capitalization spectrum which provides the Fund with exposure to
companies of different revenue and earnings levels. Finally, the Fund emphasizes
objectivity in evaluating existing holdings and sells holdings when the
fundamental outlook for a company is expected to deteriorate.

From time to time, the Fund may purchase options, futures contracts or other
instruments, such as depositary receipts, that relate to a particular stock
index, to allow the Fund to quickly invest excess cash in order to gain
exposure to the markets until the Fund can purchase individual stocks.

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 money by investing in the
Fund. The principal risks of investing in the Fund are:

o Management Risk. The risk that 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 investments.       
  
o General Market Risk. The risk that certain securities 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.  
                                     
o Equity Market 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 stock is      
  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.   
  
o Growth Stock Risk. The prices of growth stocks may be more sensitive to changes
  in current or expected earnings than the prices of other stocks.               
  
o Foreign Securities Risk. The risk of investments in foreign companies,         
  including ADRs, which represent an ownership in a foreign security, involve    
  certain risks not generally associated with investments in the securities of   
  U.S. companies, 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 international      
  country 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.
  These risks may also apply to U.S. companies that have substantial foreign
  operations.                                                            
  
o Large-Capitalization Company Risk. Larger, more established companies may be   
  unable to respond quickly to new competitive challenges such as changes in     
  consumer tastes or innovative smaller competitors. Also, large-capitalization  
  companies are sometimes unable to attain the high growth rates of successful,  
  smaller companies, especially during extended periods of economic expansion.   
  
o Mid-Capitalization Company Risk. The mid-capitalization companies in which the
  Fund may invest may be more vulnerable to adverse business or economic events  
  than larger, more established companies. In particular, these mid-sized        
  companies may pose additional risks, including liquidity risk, because these   
  companies may have limited product lines, markets and financial resources, and
  may depend upon a relatively small management group. Therefore, mid-cap stocks
  may be more volatile than those of larger companies.                           

o Options and Futures Risk. Options and futures may be more volatile than        
  investments in securities, involve additional costs and may involve a small    
  initial investment relative to the risk assumed. In addition, the value of an  
  option or future may not correlate perfectly to the underlying securities index
  or overall securities markets.

Performance

The performance information demonstrates the risks of investing in the Fund by
showing changes in the Fund's performance from year to year and by showing how
the Fund's average annual returns for one, five and ten years compare with those
of a broad measure of market performance and the returns of an additional index
of other mutual funds with characteristics similar to those of the Fund. The
Fund is the successor to the Barrett Growth Fund, a series of the Barrett Funds
(the "Predecessor Fund"). The performance information included herein reflects
the performance of the Predecessor Fund for periods prior to the reorganization,
which occurred on March 30, 2010. Remember, the Fund's 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 http://barrettasset.com or by calling toll-free at 1-877-363-6333.

Calendar Year Returns as of December 31

The Fund's calendar year-to-date return as of June 30, 2012 was 6.74%. During
the period shown in the bar chart, the best performance for a quarter was 13.25%
(for the quarter ended June 30, 2003) and the worst performance was -21.84% (for
the quarter ended December 31, 2008).

Average Annual Total Returns (for the Periods Ended December 31, 2011)

Average Annual Total Returns	Label	1 Year	5 Years	10 Years
Barrett Growth Fund	Return Before Taxes	(5.76%)	(3.58%)	(0.13%)
Barrett Growth Fund After Taxes on Distributions	Return After Taxes on Distributions	(5.76%)	(3.58%)	(0.13%)
Barrett Growth Fund After Taxes on Distributions and Sales	Return After Taxes on Distributions and Sale of Fund Shares	(3.75%)	(3.01%)	(0.11%)
Barrett Growth Fund S&P 500® Index	S&P 500® Index (reflects no deductions for fees, expenses, or taxes)	2.11%	(0.25%)	2.92%
Barrett Growth Fund Lipper Large-Cap Growth Funds Index®	Lipper Large-Cap Growth Funds Index® (reflects no deductions for fees, expenses, or taxes)	(2.90%)	0.85%	1.43%

After-tax returns are calculated using the historically highest individual
federal marginal income tax rates and do not reflect the impact of state and
local taxes. Actual after-tax returns depend on an investor's tax situation and
may differ from those shown, and after-tax returns are not relevant to investors
who hold their Fund shares through tax-deferred arrangements such as 401(k)
plans or individual retirement accounts ("IRAs"). In certain cases, the figure
representing "Return After Taxes on Distributions and Sale of Fund Shares" may
be higher than the other return figures 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] The Fund did not incur expenses under its Distribution (Rule 12b-1) Plan during its last fiscal year. However, under such plan, the Fund may pay a distribution fee of up to 0.25% of the Fund's average daily net assets.

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

[3] Pursuant to an operating expense limitation agreement between Barrett Asset Management, LLC, the Fund's investment adviser ("Barrett," or the "Adviser") and the Fund, the Adviser has agreed to waive its management fees and/or absorb expenses of the Fund to ensure that Total Annual Fund Operating Expenses (exclusive of interest, acquired fund fees and expenses, leverage and tax expenses, dividends and interest expenses on short positions, brokerage commissions and extraordinary expenses) do not exceed 1.25% of the Fund's average net assets through September 28, 2013. The current 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 is permitted to seek reimbursement from the Fund, subject to limitations, for management fees it waived and Fund expenses it paid.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Sep. 28, 2012
Barrett Growth Fund (Prospectus Summary) | Barrett Growth Fund
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Barrett Growth Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Barrett Growth Fund (the "Fund") seeks to achieve long-term capital appreciation and to maximize after-tax returns.
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.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These transaction costs, and potentially higher taxes, 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 19.27% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	19.27%
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	Please note that Total Annual Fund Operating Expenses in the table above do not correlate to the Expenses to Average Net Assets found within the "Financial Highlights" section of this prospectus, which do not include Acquired Fund Fees and Expenses.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	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 fee waiver/expense reimbursement arrangement discussed in the table above is reflected only through September 28, 2013.
Expense Example by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategies
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests primarily in a diversified portfolio of common stocks of large- and mid-cap U.S. companies selected by the Adviser. The Fund considers mid-cap companies to be companies with market capitalizations of approximately $1 billion to $10 billion and large-cap companies to be companies with market capitalizations greater than $10 billion. The Fund may also purchase securities with an equity component, such as preferred stock, warrants, rights or other securities that are convertible into or exchangeable for shares of common stock. The Fund may invest up to 25% of its net assets in foreign securities, and will normally make such investments through the purchase of American Depositary Receipts ("ADRs"). The Fund takes a conservative approach to growth stock investing that emphasizes "Growth at a Reasonable Price." The Fund invests in common stocks of high-quality companies that Barrett believes have superior growth potential and stocks that can be purchased at reasonable prices. The Fund makes investments in companies that have solid long-term earnings prospects and the Fund expects to hold these investments for prolonged periods of time, thereby avoiding short-term capital gains. The Adviser focuses on identifying companies that will produce earnings and cash flow growth in excess of companies in the Standard & Poor's 500 Composite Stock Price Index ("S&P 500® Index"). The Adviser makes investments in companies that it believes produce superior earnings at reasonable valuations. Superior relative earnings growth is usually driven by new products and services; niche products in growth sectors and industries; open-ended global growth opportunities; and cyclical companies whose margins are benefiting from a recovery in their respective industries. Stocks are sold when there is likely to be deterioration in earnings growth or other financial metrics, including balance sheet items. Maintaining a competitive industry position and management stability are also important factors in retaining a company position. Unusually weak relative stock market performance is another signal that prompts the Adviser to immediately reevaluate a holding. The Adviser mitigates risk in several ways. In order to invest in a specific company the Adviser carefully analyzes the company's balance sheet and overall ability to withstand adverse economic conditions. More broadly, the Adviser diversifies the portfolio across multiple industries, economic sectors and geographic regions to reduce the risk of a particular industry's or region's weakness adversely affecting the total Fund. Since the Adviser focuses on buying companies at reasonable valuations, the risk of overpaying for companies with strong earnings growth is also reduced. The Fund invests in companies across the large - and mid-capitalization spectrum which provides the Fund with exposure to companies of different revenue and earnings levels. Finally, the Fund emphasizes objectivity in evaluating existing holdings and sells holdings when the fundamental outlook for a company is expected to deteriorate. From time to time, the Fund may purchase options, futures contracts or other instruments, such as depositary receipts, that relate to a particular stock index, to allow the Fund to quickly invest excess cash in order to gain exposure to the markets until the Fund can purchase individual stocks.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	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 money by investing in the Fund. The principal risks of investing in the Fund are: o Management Risk. The risk that 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 investments.           o General Market Risk. The risk that certain securities 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.                                         o Equity Market 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 stock is         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.       o Growth Stock Risk. The prices of growth stocks may be more sensitive to changes   in current or expected earnings than the prices of other stocks.                   o Foreign Securities Risk. The risk of investments in foreign companies,            including ADRs, which represent an ownership in a foreign security, involve       certain risks not generally associated with investments in the securities of      U.S. companies, 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 international         country 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.   These risks may also apply to U.S. companies that have substantial foreign   operations.                                                                o Large-Capitalization Company Risk. Larger, more established companies may be      unable to respond quickly to new competitive challenges such as changes in        consumer tastes or innovative smaller competitors. Also, large-capitalization     companies are sometimes unable to attain the high growth rates of successful,     smaller companies, especially during extended periods of economic expansion.       o Mid-Capitalization Company Risk. The mid-capitalization companies in which the   Fund may invest may be more vulnerable to adverse business or economic events     than larger, more established companies. In particular, these mid-sized           companies may pose additional risks, including liquidity risk, because these      companies may have limited product lines, markets and financial resources, and   may depend upon a relatively small management group. Therefore, mid-cap stocks   may be more volatile than those of larger companies.                            o Options and Futures Risk. Options and futures may be more volatile than           investments in securities, involve additional costs and may involve a small       initial investment relative to the risk assumed. In addition, the value of an     option or future may not correlate perfectly to the underlying securities index   or overall securities markets.
Risk Lose Money [Text]	rr_RiskLoseMoney	Remember, in addition to possibly not achieving your investment goals, you could lose money by investing in the Fund.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The performance information demonstrates the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for one, five and ten years compare with those of a broad measure of market performance and the returns of an additional index of other mutual funds with characteristics similar to those of the Fund. The Fund is the successor to the Barrett Growth Fund, a series of the Barrett Funds (the "Predecessor Fund"). The performance information included herein reflects the performance of the Predecessor Fund for periods prior to the reorganization, which occurred on March 30, 2010. Remember, the Fund's 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 http://barrettasset.com or by calling toll-free at 1-877-363-6333.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The performance information demonstrates the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for one, five and ten years compare with those of a broad measure of market performance and the returns of an additional index of other mutual funds with characteristics similar to those of the Fund.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-877-363-6333
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://barrettasset.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Remember, the Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	Calendar Year Returns as of December 31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	The Fund's calendar year-to-date return as of June 30, 2012 was 6.74%. During the period shown in the bar chart, the best performance for a quarter was 13.25% (for the quarter ended June 30, 2003) and the worst performance was -21.84% (for the quarter ended December 31, 2008).
Index No Deduction for Fees, Expenses, Taxes [Text]	rr_IndexNoDeductionForFeesExpensesTaxes	reflects no deductions for fees, expenses, or taxes
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns are not relevant to investors who hold their Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts ("IRAs").
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	In certain cases, the figure representing "Return After Taxes on Distributions and Sale of Fund Shares" may be higher than the other return figures for the same period.
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns are not relevant to investors who hold their Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts ("IRAs"). In certain cases, the figure representing "Return After Taxes on Distributions and Sale of Fund Shares" may be higher than the other return figures 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	rr_AverageAnnualReturnCaption	Average Annual Total Returns (for the Periods Ended December 31, 2011)
Barrett Growth Fund (Prospectus Summary) | Barrett Growth Fund | S&P 500® Index
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	S&P 500® Index (reflects no deductions for fees, expenses, or taxes)
1 Year	rr_AverageAnnualReturnYear01	2.11%
5 Years	rr_AverageAnnualReturnYear05	(0.25%)
10 Years	rr_AverageAnnualReturnYear10	2.92%
Barrett Growth Fund (Prospectus Summary) | Barrett Growth Fund | Lipper Large-Cap Growth Funds Index®
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Lipper Large-Cap Growth Funds Index® (reflects no deductions for fees, expenses, or taxes)
1 Year	rr_AverageAnnualReturnYear01	(2.90%)
5 Years	rr_AverageAnnualReturnYear05	0.85%
10 Years	rr_AverageAnnualReturnYear10	1.43%
Barrett Growth Fund (Prospectus Summary) | Barrett Growth Fund | Barrett Growth Fund
Risk Return [Abstract]	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	1.00%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none	[1]
Other Expenses	rr_OtherExpensesOverAssets	1.36%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.36%	[2]
Fee Waiver/Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(1.11%)
Total Annual Fund Operating Expenses After Fee Waiver/Expense Reimbursement	rr_NetExpensesOverAssets	1.25%	[3]
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	2013-09-28
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	146
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	648
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,177
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	2,626
Annual Return 2002	rr_AnnualReturn2002	(24.64%)
Annual Return 2003	rr_AnnualReturn2003	25.10%
Annual Return 2004	rr_AnnualReturn2004	5.97%
Annual Return 2005	rr_AnnualReturn2005	7.27%
Annual Return 2006	rr_AnnualReturn2006	10.50%
Annual Return 2007	rr_AnnualReturn2007	7.62%
Annual Return 2008	rr_AnnualReturn2008	(37.40%)
Annual Return 2009	rr_AnnualReturn2009	20.77%
Annual Return 2010	rr_AnnualReturn2010	8.70%
Annual Return 2011	rr_AnnualReturn2011	(5.76%)
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	6.74%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	best performance
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2003
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	13.25%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	worst performance
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(21.84%)
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	(5.76%)
5 Years	rr_AverageAnnualReturnYear05	(3.58%)
10 Years	rr_AverageAnnualReturnYear10	(0.13%)
Barrett Growth Fund (Prospectus Summary) | Barrett Growth Fund | Barrett Growth Fund | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	(5.76%)
5 Years	rr_AverageAnnualReturnYear05	(3.58%)
10 Years	rr_AverageAnnualReturnYear10	(0.13%)
Barrett Growth Fund (Prospectus Summary) | Barrett Growth Fund | Barrett Growth Fund | After Taxes on Distributions and Sales
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	(3.75%)
5 Years	rr_AverageAnnualReturnYear05	(3.01%)
10 Years	rr_AverageAnnualReturnYear10	(0.11%)

[1] The Fund did not incur expenses under its Distribution (Rule 12b-1) Plan during its last fiscal year. However, under such plan, the Fund may pay a distribution fee of up to 0.25% of the Fund's average daily net assets.

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

[3] Pursuant to an operating expense limitation agreement between Barrett Asset Management, LLC, the Fund's investment adviser ("Barrett," or the "Adviser") and the Fund, the Adviser has agreed to waive its management fees and/or absorb expenses of the Fund to ensure that Total Annual Fund Operating Expenses (exclusive of interest, acquired fund fees and expenses, leverage and tax expenses, dividends and interest expenses on short positions, brokerage commissions and extraordinary expenses) do not exceed 1.25% of the Fund's average net assets through September 28, 2013. The current 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 is permitted to seek reimbursement from the Fund, subject to limitations, for management fees it waived and Fund expenses it paid.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	May 31, 2012
Registrant Name	dei_EntityRegistrantName	TRUST FOR PROFESSIONAL MANAGERS
Central Index Key	dei_EntityCentralIndexKey	0001141819
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Sep. 21, 2012
Document Effective Date	dei_DocumentEffectiveDate	Sep. 28, 2012
Barrett Growth Fund (Prospectus Summary) | Barrett Growth Fund | Barrett Growth Fund
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	BGRWX