485BPOS

Filed with the U.S. Securities and Exchange Commission on March 13, 2018

1933 Act Registration File No.   033-12213

1940 Act File No. 811-05037

UNITED STATES

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.	735	[	X	]

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940		[	X	]
Amendment No.	736	[	X	]

(Check appropriate box or boxes)

PROFESSIONALLY MANAGED PORTFOLIOS

(Exact Name of Registrant as Specified in Charter)

615 East Michigan Street

Milwaukee, WI  53202

(Address of Principal Executive Offices, including Zip Code)

Registrant’s Telephone Number, including Area Code:  (626) 914-7363

Elaine E. Richards, Esq.

Professionally Managed Portfolios

2020 E. Financial Way, Ste. 100

Glendora, CA 91741

(Name and Address of Agent for Service)

Copy to:

Domenick Pugliese, Esq.

Schiff Hardin LLP

666 Fifth Avenue, Suite 1700

New York, NY 10103

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

[	X	]	immediately upon filing pursuant to paragraph (b)
[		]	On (date) pursuant to paragraph (b)
[		]	60 days after filing pursuant to paragraph (a)(1)
[		]	on (date) pursuant to paragraph (a)(1)
[		]	75 days after filing pursuant to paragraph (a)(2)
[		]	on (date) pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box:

[ ] This post-effective amendment designates a new effective date for a previously filed post- effective amendment.

Explanatory Note: This Post-Effective Amendment (“PEA”) No. 735 to the Registration Statement of Professionally Managed Portfolios (the “Trust”) on Form N-1A hereby incorporates Parts A, B and C from the Trust’s PEA No. 732 on Form N‑1A filed on February 27, 2018.  This PEA No. 735 is filed for the sole purpose of submitting the XBRL exhibit for the risk/return summary first provided in PEA No. 732 to the Trust’s Registration Statement for the Trust’s series:  Becker Value Equity Fund.

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 it meets all of the requirements for effectiveness of this registration statement under Rule 485(b) under the Securities Act and has duly caused this Post-Effective Amendment No. 735 to its Registration Statement on Form N-1A to be signed below on its behalf by the undersigned, duly authorized, in the City of Glendora and State of California, on March 13, 2018.

Professionally Managed Portfolios

By: /s/ Elaine E. Richards                     

      Elaine E. Richards

      President

 Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 735 to its Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

Signature	Title	Date
Dorothy A. Berry*	Trustee	March 13, 2018
Dorothy A. Berry
Wallace L. Cook*	Trustee	March 13, 2018
Wallace L. Cook
Eric W. Falkeis*	Trustee	March 13, 2018
Eric W. Falkeis
Carl A. Froebel*	Trustee	March 13, 2018
Carl A. Froebel
Steven J. Paggioli*	Trustee	March 13, 2018
Steven J. Paggioli
/s/ Elaine E. Richards	President and Principal	March 13, 2018
Elaine E. Richards	Executive Officer
Aaron J. Perkovich*	Treasurer and Principal	March 13, 2018
Aaron J. Perkovich	Financial and Accounting Officer
*By: /s/Elaine E. Richards		March 13, 2018
Elaine E. Richards, Attorney-In Fact  pursuant to Power of Attorney

INDEX TO EXHIBITS

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	Oct. 31, 2017
Registrant Name	PROFESSIONALLY MANAGED PORTFOLIOS
Central Index Key	0000811030
Amendment Flag	false
Document Creation Date	Feb. 27, 2018
Document Effective Date	Feb. 28, 2018
Prospectus Date	Feb. 28, 2018
Becker Value Equity Fund | Retail Class
Prospectus:
Trading Symbol	BVEFX
Becker Value Equity Fund | Institutional Class
Prospectus:
Trading Symbol	BVEIX

XML

Becker Value Equity Fund

Becker Value Equity Fund

Investment Objective

The investment objective of the Becker Value Equity Fund (the "Fund") is long-term capital appreciation.

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)

Shareholder Fees - Becker Value Equity Fund	Retail Class	Institutional Class
Redemption Fees (as a percentage of the amount redeemed within 30 days of purchase)	1.00%	1.00%

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

Annual Fund Operating Expenses - Becker Value Equity Fund		Retail Class	Institutional Class
Management Fees		0.55%	0.55%
Distribution (12b-1) Fees		none	none
Other Expenses (including shareholder servicing plan fees of 0.10% for Retail Class)		0.24%	0.14%
Total Annual Fund Operating Expenses		0.79%	0.69%
Fee Waiver/Expense Reimbursement		(0.01%)	(0.01%)
Total Annual Fund Operating Expenses After Fee Waiver/ Expense Reimbursement	[1],[2]	0.78%	0.68%

Expense Example

The Example below is intended to help you compare the cost 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 (taking into account the Expense Caps for one year only).

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

Expense Example - Becker Value Equity Fund - USD ($)	1 year	3 years	5 years	10 years
Retail Class	80	251	438	977
Institutional Class	69	220	383	858

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 costs, which are not reflected in annual operating expenses or in the Example above, affect the Fund's performance.  During the most recent fiscal year, the Fund's portfolio turnover rate was 34% of the average value of its portfolio.

Principal Investment Strategies

The Fund employs a value strategy and invests primarily in common and preferred stocks whose market prices do not reflect their true values, as determined by the Advisor.  The Advisor utilizes a bottom-up approach to stock selection, focusing on company fundamentals.  The Advisor typically invests in companies with sound fundamentals that the Advisor believes are selling at discounted valuations and have low price-to-earnings ("P/E") ratios.  The Advisor primarily selects stocks of companies with market capitalizations exceeding $10 billion, although the Fund invests in securities of companies of any size or market capitalization that present opportunities for value.

The Fund strives to be fully invested at all times.  Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities.  Equity securities in which the Fund may invest include common stock and common stock equivalents (such as rights, warrants and convertible securities), equity exchange-traded funds ("ETFs"), preferred stock, and equity real estate investment trusts ("REITs").  The Fund may also invest up to 15% of its assets in foreign securities, including in emerging markets, through American Depositary Receipts ("ADRs").  ADRs listed on U.S. exchanges are issued by banks or trust companies, and entitle the holder to all dividends and capital gains that are paid out on the underlying foreign shares.  The Advisor may sell a security for a variety of reasons, including, without limitation:  (1) a security subsequently fails to meet the Advisor's initial investment criteria; (2) an issuer specific event, such as an acquisition or recapitalization that changes the fundamental operations of the company; (3) upon comparative analysis, a new security is judged more attractive than a current holding; or (4) views change of the individual holdings as well as the general market.

Principal Risks

All investments involve risks, and the Fund cannot guarantee that it will achieve its investment objective.  An investment in the Fund is not insured or guaranteed by any government agency.  As with any mutual fund investment, the Fund's returns and share price will fluctuate, and you may lose money by investing in the Fund.  Below are some of the specific risks of investing in the Fund.

· General Market Risk.  Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issues in other countries or regions.  Securities in the Fund's portfolio may underperform in comparison to securities in general financial markets, a particular financial market or other asset classes, due to a number of factors, including inflation (or expectations for inflation), interest rates, global demand for particular products or resources, natural disasters or events, terrorism, regulatory events and government controls.

· Value Investing Risk.  The Fund emphasizes a "value" style of investing, which targets undervalued companies with characteristics for improved valuations. This style of investing is subject to the risk that the valuations never improve or that the returns on "value" securities may not move in tandem with the returns on other styles of investing or the stock market in general.

· Equity Securities Risk.  The price of equity securities may rise or fall because of economic or political changes or changes in a company's financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for the Fund's portfolio or the securities market as a whole, such as changes in economic or political conditions.

· Management Risk.  If the Advisor's perception of the value of a company is not realized in the expected time frame, the Fund's overall performance may suffer.  The portfolio managers' management practices, investment strategies, and choice of investments might not work to produce the desired results, and the Fund might underperform other comparable funds.

· Large-Cap Company Risk.  Larger, more established companies may be unable to respond quickly to new competitive challenges like changes in consumer tastes or innovative smaller competitors. In addition, large-cap companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion.

· Small- and Mid-Cap Company Risk.  Stocks of small- and mid-cap companies may be riskier than stocks of larger companies, because many of these companies are young and have a limited track record.  Their securities may trade less frequently and in more limited volume than those of more mature companies.  As a result, small and mid-cap stocks may be significantly more volatile than larger-cap stocks.  Small and mid-cap companies also may lack the managerial, financial or other resources necessary to implement their business plans or succeed in the face of competition.  It may be difficult to sell a small or mid-cap stock, and this lack of market liquidity can adversely affect the Fund's ability to realize the market price of a stock, especially during periods of rapid market decline.

· Foreign Risk.  Foreign securities involve increased risks due to political, social and economic developments abroad, as well as due to differences between U.S. and foreign regulatory practices.  These risks are enhanced in emerging markets which are generally more volatile and less liquid. When the Fund invests in ADRs as a substitute for an investment directly in the underlying foreign shares, the Fund is exposed to the risk that the ADRs may not provide a return that corresponds precisely with that of the underlying foreign shares.

· REIT Risk.  REITs may be subject to certain risks associated with the direct ownership of real property, including declines in the value of real estate, risks related to general and local economic conditions, overbuilding and increased competition, increases in property taxes and operating expenses and variations in rental income.

· ETF Trading Risk.  If the Fund invests in ETFs, it is subject to additional risks that do not apply to other mutual funds that do not invest in ETFs, including the risks that the market price of an ETF's shares may trade at a discount to its net asset value ("NAV"), an active secondary trading market may not develop or be maintained, or trading may be halted by the exchange in which the ETFs trade, which may impact a Fund's ability to sell its shares of an ETF.  If the Fund invests in ETFs, it will indirectly bear its proportionate share of any fees and expenses payable directly by the ETF.  Therefore, the Fund would incur higher expenses, which may be duplicative, than if the Fund did not invest in ETFs.

Performance

The bar chart below shows how the Fund's investment results have varied from year-to-year as represented by the performance of the Retail Class shares.  The table below shows how the Fund's average annual total returns compare over time to those of a value-style broad-based securities market index and a secondary index provided to offer a broader market perspective.  This information provides some indication of the risks of investing in the Fund.  Past performance information 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.beckervaluefunds.com.

Effective at the close of business on August 24, 2012, the Becker Value Equity Fund, a series of Unified Series Trust (the "Predecessor Fund"), reorganized into the Fund, a series of Professionally Managed Portfolios.  Performance information shown prior to the close of business on August 24, 2012 is that of the Predecessor Fund.  Additionally, the Fund has adopted the Financial Statements of the Predecessor Fund.

Retail Class Annual Total Return (years ended December 31)

Best Quarter:	2nd Quarter, 2009, 17.05%
Worst Quarter:	4th Quarter, 2008, -21.87%

Average Annual Total Returns (for the periods ended December 31, 2017)

Average Annual Returns - Becker Value Equity Fund	Label	Average Annual Returns, 1 Year		Average Annual Returns, 5 Years		Average Annual Returns, 10 Years		Average Annual Returns, Since Inception		Average Annual Returns, Inception Date
Retail Class	Retail Class Return Before Taxes	15.14%		14.00%		8.15%		9.26%		Nov. 03, 2003
Institutional Class	Institutional Class Return Before Taxes	15.23%	[1]	14.20%	[1]	8.38%	[1]	9.50%	[1]	Sep. 02, 2011
After Taxes on Distributions | Retail Class	Retail Class Return After Taxes on Distributions	13.81%		12.14%		7.06%		8.21%
After Taxes on Distributions and Sale of Fund Shares | Retail Class	Retail Class Return After Taxes on Distributions and Sale of Fund Shares	9.65%		10.96%		6.39%		7.51%
Russell 1000® Value Index (reflects no deductions for fees, expenses and taxes)	Russell 1000® Value Index (reflects no deductions for fees, expenses and taxes)	13.66%		14.04%		7.10%		8.62%		Nov. 03, 2003
S&P 500® Index (reflects no deductions for fees, expenses and taxes)	S&P 500® Index (reflects no deductions for fees, expenses and taxes)	21.83%		15.79%		8.50%		8.99%		Nov. 03, 2003

After-tax returns are calculated using the historical highest individual federal marginal income tax rates in effect 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.  After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts ("IRAs").  The index returns presented above assume reinvestment of all distributions and exclude the effect of taxes and fees (if expenses and taxes were deducted, the actual returns of the Index would be lower).

The "Return After Taxes on Distributions" shows the effect of taxable distributions (dividends and capital gains distributions), but assumes that you still hold Fund shares at the end of the period.  The "Return After Taxes on Distributions and Sale of Fund Shares" shows the effect of both taxable distributions and any taxable gain or loss that would be realized if a Fund's shares were sold at the end of the specified period.

[1] Becker Capital Management, Inc. (the "Advisor"), has contractually agreed to reduce its management fee and/or reimburse certain expenses (excluding brokerage fees and commissions; borrowing costs, such as (a) interest and (b) dividend expenses on securities sold short; taxes; any indirect expenses, such as Acquired Fund Fees and Expenses; and extraordinary litigation expenses) so that Total Annual Fund Operating Expenses After Fee Waiver/Expense Reimbursement do not exceed 0.78% for the Retail Class and 0.68% for the Institutional Class of each class' respective average daily net assets (the "Expense Caps"). The Expense Caps will remain in effect at least through February 28, 2019. The Agreement may be terminated at any time by the Board of Trustees upon 60 days notice to the Advisor, or by the Advisor with consent of the Board. The Advisor is permitted, with Board approval, to be reimbursed for fee reductions and/or expense payments made in the prior three years. This reimbursement may be requested if the aggregate amount actually paid by the Fund toward operating expenses for the such period (taking into account any reimbursement) does not exceed the lesser of the Expense Caps in place at the time of waiver or at the time of reimbursement.

[2] The Total Annual Operating Expenses After Fee Waiver/Expense Reimbursement do not correlate to the Ratio of Expenses to Average Net Assets After Fees Waived/Recouped and Expenses Absorbed provided in the Financial Highlights Section of the Statutory Prospectus, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.

[1] Performance shown prior to September 2, 2011, the inception of Institutional Class shares, reflects the performance of the Retail Class shares, adjusted to reflect Institutional Class expenses.

XML

Label

Element

Value

Becker Value Equity Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Becker Value Equity Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The investment objective of the Becker Value Equity Fund (the "Fund") is long-term capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

Feb. 28, 2019

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 costs, which are not reflected in annual operating expenses or in the Example above, affect the Fund's performance.  During the most recent fiscal year, the Fund's portfolio turnover rate was 34% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

34.00%

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

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

The Total Annual Operating Expenses After Fee Waiver/Expense Reimbursement do not correlate to the Ratio of Expenses to Average Net Assets After Fees Waived/Recouped and Expenses Absorbed provided in the Financial Highlights Section of the Statutory Prospectus, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Expense Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The Example below is intended to help you compare the cost 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 (taking into account the Expense Caps for one year only).

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 employs a value strategy and invests primarily in common and preferred stocks whose market prices do not reflect their true values, as determined by the Advisor.  The Advisor utilizes a bottom-up approach to stock selection, focusing on company fundamentals.  The Advisor typically invests in companies with sound fundamentals that the Advisor believes are selling at discounted valuations and have low price-to-earnings ("P/E") ratios.  The Advisor primarily selects stocks of companies with market capitalizations exceeding $10 billion, although the Fund invests in securities of companies of any size or market capitalization that present opportunities for value.

The Fund strives to be fully invested at all times.  Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities.  Equity securities in which the Fund may invest include common stock and common stock equivalents (such as rights, warrants and convertible securities), equity exchange-traded funds ("ETFs"), preferred stock, and equity real estate investment trusts ("REITs").  The Fund may also invest up to 15% of its assets in foreign securities, including in emerging markets, through American Depositary Receipts ("ADRs").  ADRs listed on U.S. exchanges are issued by banks or trust companies, and entitle the holder to all dividends and capital gains that are paid out on the underlying foreign shares.  The Advisor may sell a security for a variety of reasons, including, without limitation:  (1) a security subsequently fails to meet the Advisor's initial investment criteria; (2) an issuer specific event, such as an acquisition or recapitalization that changes the fundamental operations of the company; (3) upon comparative analysis, a new security is judged more attractive than a current holding; or (4) views change of the individual holdings as well as the general market.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

All investments involve risks, and the Fund cannot guarantee that it will achieve its investment objective.  An investment in the Fund is not insured or guaranteed by any government agency.  As with any mutual fund investment, the Fund's returns and share price will fluctuate, and you may lose money by investing in the Fund.  Below are some of the specific risks of investing in the Fund.

· General Market Risk.  Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issues in other countries or regions.  Securities in the Fund's portfolio may underperform in comparison to securities in general financial markets, a particular financial market or other asset classes, due to a number of factors, including inflation (or expectations for inflation), interest rates, global demand for particular products or resources, natural disasters or events, terrorism, regulatory events and government controls.

· Value Investing Risk.  The Fund emphasizes a "value" style of investing, which targets undervalued companies with characteristics for improved valuations. This style of investing is subject to the risk that the valuations never improve or that the returns on "value" securities may not move in tandem with the returns on other styles of investing or the stock market in general.

· Equity Securities Risk.  The price of equity securities may rise or fall because of economic or political changes or changes in a company's financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for the Fund's portfolio or the securities market as a whole, such as changes in economic or political conditions.

· Management Risk.  If the Advisor's perception of the value of a company is not realized in the expected time frame, the Fund's overall performance may suffer.  The portfolio managers' management practices, investment strategies, and choice of investments might not work to produce the desired results, and the Fund might underperform other comparable funds.

· Large-Cap Company Risk.  Larger, more established companies may be unable to respond quickly to new competitive challenges like changes in consumer tastes or innovative smaller competitors. In addition, large-cap companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion.

· Small- and Mid-Cap Company Risk.  Stocks of small- and mid-cap companies may be riskier than stocks of larger companies, because many of these companies are young and have a limited track record.  Their securities may trade less frequently and in more limited volume than those of more mature companies.  As a result, small and mid-cap stocks may be significantly more volatile than larger-cap stocks.  Small and mid-cap companies also may lack the managerial, financial or other resources necessary to implement their business plans or succeed in the face of competition.  It may be difficult to sell a small or mid-cap stock, and this lack of market liquidity can adversely affect the Fund's ability to realize the market price of a stock, especially during periods of rapid market decline.

· Foreign Risk.  Foreign securities involve increased risks due to political, social and economic developments abroad, as well as due to differences between U.S. and foreign regulatory practices.  These risks are enhanced in emerging markets which are generally more volatile and less liquid. When the Fund invests in ADRs as a substitute for an investment directly in the underlying foreign shares, the Fund is exposed to the risk that the ADRs may not provide a return that corresponds precisely with that of the underlying foreign shares.

· REIT Risk.  REITs may be subject to certain risks associated with the direct ownership of real property, including declines in the value of real estate, risks related to general and local economic conditions, overbuilding and increased competition, increases in property taxes and operating expenses and variations in rental income.

· ETF Trading Risk.  If the Fund invests in ETFs, it is subject to additional risks that do not apply to other mutual funds that do not invest in ETFs, including the risks that the market price of an ETF's shares may trade at a discount to its net asset value ("NAV"), an active secondary trading market may not develop or be maintained, or trading may be halted by the exchange in which the ETFs trade, which may impact a Fund's ability to sell its shares of an ETF.  If the Fund invests in ETFs, it will indirectly bear its proportionate share of any fees and expenses payable directly by the ETF.  Therefore, the Fund would incur higher expenses, which may be duplicative, than if the Fund did not invest in ETFs.

Risk Lose Money [Text]

rr_RiskLoseMoney

As with any mutual fund investment, the Fund's returns and share price will fluctuate, and you may lose money by investing in the Fund.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The bar chart below shows how the Fund's investment results have varied from year-to-year as represented by the performance of the Retail Class shares.  The table below shows how the Fund's average annual total returns compare over time to those of a value-style broad-based securities market index and a secondary index provided to offer a broader market perspective.  This information provides some indication of the risks of investing in the Fund.  Past performance information 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.beckervaluefunds.com.

Effective at the close of business on August 24, 2012, the Becker Value Equity Fund, a series of Unified Series Trust (the "Predecessor Fund"), reorganized into the Fund, a series of Professionally Managed Portfolios.  Performance information shown prior to the close of business on August 24, 2012 is that of the Predecessor Fund.  Additionally, the Fund has adopted the Financial Statements of the Predecessor Fund.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

This information provides some indication of the risks of investing in the Fund.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.beckervaluefunds.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance information is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Retail Class Annual Total Return (years ended December 31)

Bar Chart Footnotes [Text Block]

rr_BarChartFootnotesTextBlock

Best Quarter:	2nd Quarter, 2009, 17.05%
Worst Quarter:	4th Quarter, 2008, -21.87%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

17.05%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(21.87%)

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

rr_IndexNoDeductionForFeesExpensesTaxes

(reflects no deductions for fees, expenses and taxes)

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

Actual after-tax returns depend on an investor's tax situation and may differ from those shown. After-tax returns shown 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 Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns shown 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 Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates in effect 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.  After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts ("IRAs").  The index returns presented above assume reinvestment of all distributions and exclude the effect of taxes and fees (if expenses and taxes were deducted, the actual returns of the Index would be lower).

The "Return After Taxes on Distributions" shows the effect of taxable distributions (dividends and capital gains distributions), but assumes that you still hold Fund shares at the end of the period.  The "Return After Taxes on Distributions and Sale of Fund Shares" shows the effect of both taxable distributions and any taxable gain or loss that would be realized if a Fund's shares were sold at the end of the specified period.

Caption

rr_AverageAnnualReturnCaption

Average Annual Total Returns (for the periods ended December 31, 2017)

Becker Value Equity Fund | Russell 1000® Value Index (reflects no deductions for fees, expenses and taxes)

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

Russell 1000® Value Index (reflects no deductions for fees, expenses and taxes)

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

13.66%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

14.04%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

7.10%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

8.62%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Nov. 03, 2003

Becker Value Equity Fund | S&P 500® Index (reflects no deductions for fees, expenses and taxes)

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

S&P 500® Index (reflects no deductions for fees, expenses and taxes)

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

21.83%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

15.79%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

8.50%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

8.99%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Nov. 03, 2003

Becker Value Equity Fund | Retail Class

Risk/Return:

rr_RiskReturnAbstract

Redemption Fee (as a percentage of Amount Redeemed)

rr_RedemptionFeeOverRedemption

(1.00%)

Management Fees

rr_ManagementFeesOverAssets

0.55%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses (including shareholder servicing plan fees of 0.10% for Retail Class)

rr_OtherExpensesOverAssets

0.24%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.79%

Fee Waiver/Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.01%)

Total Annual Fund Operating Expenses After Fee Waiver/ Expense Reimbursement

rr_NetExpensesOverAssets

0.78%

^[1],[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 80

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

251

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

438

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 977

Annual Return 2008

rr_AnnualReturn2008

(30.53%)

Annual Return 2009

rr_AnnualReturn2009

26.92%

Annual Return 2010

rr_AnnualReturn2010

12.17%

Annual Return 2011

rr_AnnualReturn2011

(0.64%)

Annual Return 2012

rr_AnnualReturn2012

15.66%

Annual Return 2013

rr_AnnualReturn2013

36.40%

Annual Return 2014

rr_AnnualReturn2014

11.20%

Annual Return 2015

rr_AnnualReturn2015

(7.03%)

Annual Return 2016

rr_AnnualReturn2016

18.60%

Annual Return 2017

rr_AnnualReturn2017

15.14%

Label

rr_AverageAnnualReturnLabel

Retail Class Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

15.14%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

14.00%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

8.15%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

9.26%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Nov. 03, 2003

Becker Value Equity Fund | Retail Class | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

Retail Class Return After Taxes on Distributions

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

13.81%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

12.14%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

7.06%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

8.21%

Becker Value Equity Fund | Retail Class | After Taxes on Distributions and Sale of Fund Shares

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

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

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

9.65%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

10.96%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

6.39%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

7.51%

Becker Value Equity Fund | Institutional Class

Risk/Return:

rr_RiskReturnAbstract

Redemption Fee (as a percentage of Amount Redeemed)

rr_RedemptionFeeOverRedemption

(1.00%)

Management Fees

rr_ManagementFeesOverAssets

0.55%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses (including shareholder servicing plan fees of 0.10% for Retail Class)

rr_OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.69%

Fee Waiver/Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.01%)

Total Annual Fund Operating Expenses After Fee Waiver/ Expense Reimbursement

rr_NetExpensesOverAssets

0.68%

^[1],[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 69

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

220

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

383

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 858

Label

rr_AverageAnnualReturnLabel

Institutional Class Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

15.23%

^[3]

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

14.20%

^[3]

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

8.38%

^[3]

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

9.50%

^[3]

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Sep. 02, 2011

[1] Becker Capital Management, Inc. (the "Advisor"), has contractually agreed to reduce its management fee and/or reimburse certain expenses (excluding brokerage fees and commissions; borrowing costs, such as (a) interest and (b) dividend expenses on securities sold short; taxes; any indirect expenses, such as Acquired Fund Fees and Expenses; and extraordinary litigation expenses) so that Total Annual Fund Operating Expenses After Fee Waiver/Expense Reimbursement do not exceed 0.78% for the Retail Class and 0.68% for the Institutional Class of each class' respective average daily net assets (the "Expense Caps"). The Expense Caps will remain in effect at least through February 28, 2019. The Agreement may be terminated at any time by the Board of Trustees upon 60 days notice to the Advisor, or by the Advisor with consent of the Board. The Advisor is permitted, with Board approval, to be reimbursed for fee reductions and/or expense payments made in the prior three years. This reimbursement may be requested if the aggregate amount actually paid by the Fund toward operating expenses for the such period (taking into account any reimbursement) does not exceed the lesser of the Expense Caps in place at the time of waiver or at the time of reimbursement.

[2] The Total Annual Operating Expenses After Fee Waiver/Expense Reimbursement do not correlate to the Ratio of Expenses to Average Net Assets After Fees Waived/Recouped and Expenses Absorbed provided in the Financial Highlights Section of the Statutory Prospectus, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.

[3] Performance shown prior to September 2, 2011, the inception of Institutional Class shares, reflects the performance of the Retail Class shares, adjusted to reflect Institutional Class expenses.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Prospectus Date	rr_ProspectusDate	Feb. 28, 2018