v3.25.1
Label Element Value
Riverbridge Growth Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading RIVERBRIDGE GROWTH FUND
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The investment objective of the Riverbridge Growth Fund (the “Fund”) is to seek 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, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below.

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 Mar. 31, 2026
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 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 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 6% of the average value of its portfolio.

Portfolio Turnover, Rate rr_PortfolioTurnoverRate 6.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other 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 example reflects the Fund’s contractual fee waiver and/or expense reimbursement only for the term of the contractual fee waiver and/or expense reimbursement.

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

Under normal circumstances, the Fund invests in equity securities of companies of any size, including small- and mid-capitalization companies. The Fund’s investments in equity securities may include common stock, preferred stock and convertible securities. While the Fund invests primarily in equity securities of U.S. issuers, it may invest in securities of non-U.S. issuers. The Fund’s investments in foreign securities are primarily comprised of U.S. dollar-denominated securities of foreign issuers traded in the United States and American Depositary Receipts (“ADRs”). ADRs are receipts that represent interests in foreign securities held on deposit by U.S. banks. The Fund will invest in a portfolio of securities typically spread across many economic sectors, although from time to time, the Fund may have a significant portion of its assets in one or more market sectors such as the information technology sector. The Fund’s advisor seeks to diversify the Fund’s exposure to earnings catalysts (e.g. consumer spending, U.S. healthcare reimbursement and energy pricing) rather than limit the Fund’s exposure to individual market sectors.

The Fund’s advisor believes that earnings power determines the value of a franchise. The Fund’s advisor focuses on companies that it views as building their earnings power and building their intrinsic, or actual, values over long periods of time. The Fund’s advisor uses a bottom-up approach that seeks to identify high quality growth companies that demonstrate the ability to sustain strong secular earnings growth, regardless of overall economic conditions.

Risk [Heading] rr_RiskHeading Principal Risks of Investing
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year for Institutional Class Shares and by showing how the average annual total returns of each class of the Fund compare with the average annual total returns of the S&P 500 Index, the Fund’s broad-based securities market index, and the Russell 3000 Growth Index, the Fund’s secondary benchmark index that more closely represents the investment exposure sought by the Fund. Performance for classes other than those shown may vary from the performance shown to the extent the expenses for those classes differ. Updated performance information is available at the Fund’s website, www.riverbridge.com, or by calling the Fund at 1-888-447-4470. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year for Institutional Class Shares and by showing how the average annual total returns of each class of the Fund compare with the average annual total returns of the S&P 500 Index, the Fund’s broad-based securities market index, and the Russell 3000 Growth Index, the Fund’s secondary benchmark index that more closely represents the investment exposure sought by the Fund.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-888-447-4470
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.riverbridge.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture 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 Total Return (before taxes) for Institutional Class Shares For each calendar year at net asset value per share (“NAV”)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

Institutional Class Shares

   

Highest Calendar Quarter Return at NAV

27.48%

Quarter Ended 06/30/2020

Lowest Calendar Quarter Return at NAV

(20.70)%

Quarter Ended 06/30/2022

Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for periods ended December 31, 2024)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical 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 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.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown for Institutional Class Shares only and after-tax returns for classes other than Institutional Class will vary from returns shown for Institutional Class.
Riverbridge Growth Fund | Risk Lose Money [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Risk is inherent in all investing and you could lose money by investing in the Fund.
Riverbridge Growth Fund | Market risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Market risk.    The market price of a security or instrument may decline, sometimes rapidly or unpredictably, due to general market conditions that are not specifically related to a particular company, such as real or perceived adverse economic, political, or geopolitical conditions throughout the world, changes in the general outlook for corporate earnings, changes in interest or currency rates, or adverse investor sentiment generally. The market value of a security or instrument also may decline because of factors that affect a particular industry or industries,

such as tariffs, labor shortages or increased production costs and competitive conditions within an industry. In addition, local, regional or global events such as war, acts of terrorism, international conflicts, the effects of climate change, trade disputes, supply chain disruptions, cybersecurity events, the spread of infectious illness or other public health issues, natural disasters or climate events, or other events could have a significant impact on a security or instrument. The increasing interconnectivity between global economies and financial markets increases the likelihood that events or conditions in one region or financial market may adversely impact issuers in a different country, region or financial market.

Riverbridge Growth Fund | Equity risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Equity risk.    The value of the equity securities held by the Fund may fall due to general market and economic conditions, perceptions regarding the industries in which the issuers of securities held by the Fund participate, or factors relating to specific companies in which the Fund invests.

Riverbridge Growth Fund | Growth-oriented investment strategies risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Growth-oriented investment strategies risk.    Growth funds generally focus on stocks of companies believed to have above-average potential for growth in revenue and earnings. Growth securities typically are very sensitive to market movements because their market prices frequently reflect projections of future earnings or revenues, and when it appears that those expectations will not be met, the prices of growth securities typically fall.

Riverbridge Growth Fund | Sector focus risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Sector focus risk.    The Fund may invest a larger portion of its assets in one or more sectors than many other mutual funds, and thus will be more susceptible to negative events affecting those sectors. For example, as of November 30, 2024, 37.6% of the Fund’s net assets were invested in the information technology sector. Companies in the information technology sector can be significantly affected by intense competition, consumer preferences, problems with product compatibility and government regulation.

Riverbridge Growth Fund | Small-cap and mid-cap company risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Small-cap and mid-cap company risk.    The securities of small-capitalization and mid-capitalization companies may be subject to more abrupt or erratic market movements and may have lower trading volumes or more erratic trading than securities of larger, more established companies or market averages in general. In addition, such companies typically are more likely to be adversely affected than large capitalization companies by changes in earning results, business prospects, investor expectations or poor economic or market conditions.

Riverbridge Growth Fund | Management and strategy risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Management and strategy risk.    The value of your investment depends on the judgment of the Fund’s advisor about the quality, relative yield, value or market trends affecting a particular security, industry, sector or region, which may prove to be incorrect.

Riverbridge Growth Fund | Foreign investment risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Foreign investment risk.    The prices of foreign securities may be more volatile than the prices of securities of U.S. issuers because of economic and social conditions abroad, political developments, and changes in the regulatory environments of foreign countries. Changes in exchange rates and interest rates, and the imposition of sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and/or other governments may adversely affect the values of the Fund’s foreign investments. Foreign companies are generally subject to different legal and accounting standards than U.S. companies, and foreign financial intermediaries may be subject to less supervision and regulation than U.S. financial firms. Foreign securities include ADRs. Unsponsored ADRs are organized independently and without the cooperation of the foreign issuer of the underlying securities, and involve additional risks because U.S. reporting requirements do not apply. In addition, the issuing bank may deduct shareholder distribution, custody, foreign currency exchange, and other fees from the payment of dividends. Emerging markets tend to be more volatile than the markets of more mature economies and generally have less diverse and less mature economic structures and less stable political systems than those of developed countries.

Riverbridge Growth Fund | Preferred stock risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Preferred stock risk.    Preferred stock represents an equity interest in a company that generally entitles the holder to receive, in preference to the holders of other stocks such as common stock, dividends and a fixed share of the proceeds resulting from a liquidation of the company. The market value of preferred stock is subject to company-specific and market risks applicable generally to equity securities and is also sensitive to changes in the company’s creditworthiness, the ability of the company to make payments on the preferred stock, and changes in interest rates, typically declining in value if interest rates rise.

Riverbridge Growth Fund | Convertible securities risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Convertible securities risk.    Convertible securities are subject to market and interest rate risk and credit risk. When the market price of the equity security underlying a convertible security decreases the convertible security tends to trade on the basis of its yield and other fixed income characteristics, and is more susceptible to credit and interest rate risks. When the market price of such equity security rises, the convertible security tends to trade on the basis of its equity conversion features and be more exposed to market risk. Convertible securities are typically issued by smaller capitalized companies with stock prices that may be more volatile than those of other companies.

Riverbridge Growth Fund | Recent market events [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Recent market events.    Periods of market volatility may occur in response to market events, public health emergencies, natural disasters or climate events, and other economic, political, and global macro factors. For example, in recent years the large expansion of government deficits and debt as a result of government actions to mitigate the effects of the COVID-19 pandemic and inflation have resulted in extreme volatility in the global economy and in global financial markets. In addition, military conflicts and wars, such as Russia’s invasion of Ukraine and the war among Israel, Hamas and other militant groups in the Middle East, have increased tensions in Europe and the Middle East and have caused and could continue to cause market disruptions in the regions and globally. These and other similar events could be prolonged and could adversely affect the value and liquidity of the Fund’s investments, impair the Fund’s ability to satisfy redemption requests, and negatively impact the Fund’s performance.

Riverbridge Growth Fund | Cybersecurity risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Cybersecurity risk.    Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, customer data (including private shareholder information), or proprietary information, or cause the Fund, the Fund’s advisor, and/or other service providers (including custodians, sub-custodians, transfer agents and financial intermediaries) to suffer data breaches, data corruption or loss of operational functionality. In an extreme case, a shareholder’s ability to exchange or redeem Fund shares may be affected. Issuers or securities in which the Fund invests are also subject to cybersecurity risks, and the value of those securities could decline is the issuers experience cybersecurity incidents.

Riverbridge Growth Fund | S&P 500 Index (Reflects No Deductions for Fees, Expenses or Taxes)  
Risk/Return: rr_RiskReturnAbstract  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes Reflects No Deductions for Fees, Expenses or Taxes
Label rr_AverageAnnualReturnLabel S&P 500 Index (Reflects No Deductions for Fees, Expenses or Taxes)
One Year rr_AverageAnnualReturnYear01 25.02%
Five Years rr_AverageAnnualReturnYear05 14.53%
Ten Years rr_AverageAnnualReturnYear10 13.10%
Riverbridge Growth Fund | Russell 3000 Growth Index (Reflects No Deductions for Fees, Expenses or Taxes)  
Risk/Return: rr_RiskReturnAbstract  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes Reflects No Deductions for Fees, Expenses or Taxes
Label rr_AverageAnnualReturnLabel Russell 3000 Growth Index (Reflects No Deductions for Fees, Expenses or Taxes)
One Year rr_AverageAnnualReturnYear01 32.46%
Five Years rr_AverageAnnualReturnYear05 18.25%
Ten Years rr_AverageAnnualReturnYear10 16.22%
Riverbridge Growth Fund | Investor Class Shares  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Redemption fee if redeemed within 90 days of purchase (as a percentage of amount redeemed) rr_RedemptionFeeOverRedemption 1.00%
Wire fee rr_RedemptionFee $ 20
Overnight check delivery fee rr_ExchangeFee 25
Retirement account fees (annual maintenance fee) rr_MaximumAccountFee $ 15
Management fees rr_ManagementFeesOverAssets 0.75%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Shareholder service fees rr_Component1OtherExpensesOverAssets 0.07%
All other expenses rr_Component3OtherExpensesOverAssets 0.22%
Other expenses rr_OtherExpensesOverAssets 0.29%
Total annual fund operating expenses rr_ExpensesOverAssets 1.29%
Fees waived and/or expenses reimbursed rr_FeeWaiverOrReimbursementOverAssets (0.08%) [1]
Total annual fund operating expenses after waiving fees and/or reimbursing expenses rr_NetExpensesOverAssets 1.21% [1]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 123
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 401
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 700
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,549
Label rr_AverageAnnualReturnLabel Investor Class Shares – Return Before Taxes
One Year rr_AverageAnnualReturnYear01 19.29%
Five Years rr_AverageAnnualReturnYear05 11.24%
Ten Years rr_AverageAnnualReturnYear10 12.22%
Riverbridge Growth Fund | Institutional Class Shares  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Redemption fee if redeemed within 90 days of purchase (as a percentage of amount redeemed) rr_RedemptionFeeOverRedemption 1.00%
Wire fee rr_RedemptionFee $ 20
Overnight check delivery fee rr_ExchangeFee 25
Retirement account fees (annual maintenance fee) rr_MaximumAccountFee $ 15
Management fees rr_ManagementFeesOverAssets 0.75%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Shareholder service fees rr_Component1OtherExpensesOverAssets 0.07%
All other expenses rr_Component3OtherExpensesOverAssets 0.22%
Other expenses rr_OtherExpensesOverAssets 0.29%
Total annual fund operating expenses rr_ExpensesOverAssets 1.04%
Fees waived and/or expenses reimbursed rr_FeeWaiverOrReimbursementOverAssets (0.08%) [1]
Total annual fund operating expenses after waiving fees and/or reimbursing expenses rr_NetExpensesOverAssets 0.96% [1]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 98
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 323
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 566
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,264
Annual Return 2015 rr_AnnualReturn2015 4.37%
Annual Return 2016 rr_AnnualReturn2016 5.66%
Annual Return 2017 rr_AnnualReturn2017 25.42%
Annual Return 2018 rr_AnnualReturn2018 4.24%
Annual Return 2019 rr_AnnualReturn2019 30.28%
Annual Return 2020 rr_AnnualReturn2020 44.29%
Annual Return 2021 rr_AnnualReturn2021 9.23%
Annual Return 2022 rr_AnnualReturn2022 (30.70%)
Annual Return 2023 rr_AnnualReturn2023 32.04%
Annual Return 2024 rr_AnnualReturn2024 19.58%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Calendar Quarter Return at NAV
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 27.48%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Calendar Quarter Return at NAV
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (20.70%)
Label rr_AverageAnnualReturnLabel Institutional Class Shares – Return Before Taxes
One Year rr_AverageAnnualReturnYear01 19.58%
Five Years rr_AverageAnnualReturnYear05 11.51%
Ten Years rr_AverageAnnualReturnYear10 12.47%
Riverbridge Growth Fund | Institutional Class Shares | Institutional Class Shares – Return After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Institutional Class Shares – Return After Taxes on Distributions
One Year rr_AverageAnnualReturnYear01 18.98% [2]
Five Years rr_AverageAnnualReturnYear05 11.02% [2]
Ten Years rr_AverageAnnualReturnYear10 11.84% [2]
Riverbridge Growth Fund | Institutional Class Shares | Institutional Class Shares – Return After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Institutional Class Shares – Return After Taxes on Distributions and Sale of Fund Shares
One Year rr_AverageAnnualReturnYear01 12.04% [2]
Five Years rr_AverageAnnualReturnYear05 9.15% [2]
Ten Years rr_AverageAnnualReturnYear10 10.25% [2]
[1] The Fund’s advisor has contractually agreed to waive its fees and/or pay for operating expenses of the Fund to ensure that total annual fund operating expenses (excluding any taxes, leverage interest, brokerage commissions, dividend and interest expenses on short sales, acquired fund fees and expenses (as determined in accordance with SEC Form N-1A), expenses incurred in connection with any merger or reorganization and extraordinary expenses such as litigation expenses) do not exceed 1.21% and 0.96% of the average daily net assets of the Fund’s Investor Class and Institutional Class shares, respectively. This agreement is in effect through March 31, 2026, and it may be terminated before that date only by the Trust’s Board of Trustees. The Fund’s advisor is permitted to seek reimbursement from the Fund, subject to certain limitations, of fees waived or payments made to the Fund for a period ending three full fiscal years after the date of the waiver or payment. This reimbursement may be requested from the Fund if the reimbursement will not cause the Fund’s annual expense ratio to exceed the lesser of (a) the expense limitation in effect at the time such fees were waived or payments made, or (b) the expense limitation in effect at the time of the reimbursement.
[2] After-tax returns are calculated using the historical 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. 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. After-tax returns are shown for Institutional Class Shares only and after-tax returns for classes other than Institutional Class will vary from returns shown for Institutional Class.