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Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading All American Equity Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The All American Equity Fund's primary objective is to seek long-term capital appreciation.

Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

The following table describes the fees and expenses that you may pay if you buy and hold Investor Class shares of the fund. These fees are paid directly from your investment.

Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Maximum sales charge rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Redemption Fee (as a percentage of Amount Redeemed) rr_RedemptionFeeOverRedemption (0.05%)
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)
Management fee rr_ManagementFeesOverAssets 0.80%
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 1.67%
Total annual fund operating expenses rr_ExpensesOverAssets 2.72%
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 where 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. The fund had a portfolio turnover rate of 221% for the fiscal year ended December 31, 2012.

Portfolio Turnover, Rate rr_PortfolioTurnoverRate 221.00%
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 Investor Class of 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% annual return and the fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your cost would be:

Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption If you redeem your shares:
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 285
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 854
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,450
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 3,061
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption If you do not redeem your shares:
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 275
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 844
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,440
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 3,051
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Adviser uses a matrix of "top-down" macro models and "bottom-up" micro stock selection models to determine weighting in sectors and individual securities. The Adviser believes government policies are a precursor to change, and as a result, it monitors and tracks the fiscal and monetary policies of the world's largest countries both in terms of economic stature and population. The Adviser focuses on historical and socioeconomic cycles, and it applies both statistical and fundamental models, including "growth at a reasonable price" (GARP), to identify companies with superior growth and value metrics. The Adviser overlays these explicit knowledge models with the tacit knowledge obtained by domestic and global travel for first-hand observation of local and geopolitical conditions, as well as specific companies and projects.


The Adviser's "bottom-up" stock selection approach is generally characterized as growth at a reasonable price, which focuses on three key drivers: revenue growth, earnings growth and return on equity. The Adviser searches for growth companies that have strong fundamentals and are also trading at reasonable valuations. Shareholder yield is another factor the Adviser considers when evaluating a company. Shareholder yield is determined by the dividends that a company pays to its shareholders and/or by a company buyback of stock from shareholders. The focus of the stock selection is on large capitalization companies.


Under normal market conditions, the All American Equity Fund will invest substantially all (greater than 80%) of its net assets in equity and equity-related securities defined as "all American." The equity and equity-related securities in which the fund primarily invests are common stocks, preferred stocks, convertible securities, rights and warrants, and depository receipts (ADRs and GDRs).


The All American Equity Fund will consider any of the following companies to be "all American":


1.  companies offering stock registered on a United States stock exchange;


2.  companies offering stock traded on Nasdaq or the over-the-counter markets;


3.  companies deriving more than 50% of their revenue from operations in the United States;


4.  companies incorporated in the United States; or


5.  companies having their principal place of business or corporate headquarters located in the United States.


The fund also may purchase call and put options, and enter into covered option writing transactions. In addition, the fund may invest up to 15% of its net assets in illiquid securities.


The Adviser uses a matrix of statistical models to monitor market volatility and money flows, and as a result, it may at times maintain higher than normal cash levels. For example, the Adviser may take a temporary defensive position when the securities trading markets or the economy are experiencing excessive volatility, a prolonged general decline, or other adverse conditions.

Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

•  Main Risk. As with all mutual funds, loss of money is a risk of investing in the fund.


•  Market Risk. The value of the fund's shares will go up and down based on the performance of the companies whose securities it owns and other factors affecting the securities market generally.


•  Portfolio Management Risk. The skill of the Adviser will play a significant role in the fund's ability to achieve its investment objectives.


•  Growth Stock Risk. Growth stocks generally experience share price fluctuations as the market reacts to changing perceptions of the underlying companies' growth potentials and broader economic activities.


•  Sector Risk. The fund may invest a significant amount of its assets in certain sectors, which exposes the fund to greater market risk than if the fund diversified its assets among various sectors.


•  Options Risk. Investing in options, LEAPS (an option that has an expiration date of up to two and one half years), and other instruments with option-type elements may increase the volatility and/or transaction expenses of the fund. An option may expire without value, resulting in a loss of the fund's initial investment and may be less liquid and more volatile than an investment in the underlying securities


•  Illiquidity Risk. Illiquid securities are those securities that cannot be disposed of in seven days or less at approximately the value at which a fund carries them on its balance sheet. These investments may involve a high degree of business and financial risk.

Risk Lose Money [Text] rr_RiskLoseMoney As with all mutual funds, loss of money is a risk of investing in the fund.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance Information
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table show the volatility of the fund's Investor Class share returns, which is one indicator of the risks of investing in the fund. The bar chart shows changes in the fund's returns from year to year during the period indicated. The table compares the fund's average annual returns for the last 1-, 5- and 10-year periods to those of a broad-based securities market index. How the fund performed in the past, before and after taxes, is not an indication of how it will perform in the future. You may obtain performance data current to the most recent month end at www.usfunds.com or by calling 1-800-873-8637.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table show the volatility of the fund's Investor Class share returns, which is one indicator of the risks of investing in the fund.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-800-873-8637
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.usfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture How the fund performed in the past, before and after taxes, is not an indication of how it will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns (as of December 31 each year) All American Fund
Annual Return 2003 rr_AnnualReturn2003 31.31%
Annual Return 2004 rr_AnnualReturn2004 5.05%
Annual Return 2005 rr_AnnualReturn2005 11.87%
Annual Return 2006 rr_AnnualReturn2006 10.91%
Annual Return 2007 rr_AnnualReturn2007 27.03%
Annual Return 2008 rr_AnnualReturn2008 (39.72%)
Annual Return 2009 rr_AnnualReturn2009 13.75%
Annual Return 2010 rr_AnnualReturn2010 15.92%
Annual Return 2011 rr_AnnualReturn2011 0.14%
Annual Return 2012 rr_AnnualReturn2012 11.80%
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

Best quarter shown in the bar chart above: 13.79% in the fourth quarter of 2003.


Worst quarter shown in the bar chart above: (21.09)% in the third quarter of 2008.

Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2003
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.79%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.09%)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historic marginal individual federal 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. 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.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the highest historic marginal individual federal 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 are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Caption rr_AverageAnnualReturnCaption Average Annual Total Returns (for the periods ended December 31, 2012)
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 11.80%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (2.30%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 6.82%
After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 11.80%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (2.33%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 5.98%
After Taxes on Distributions and Sale of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 7.67%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (1.95%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 5.57%
S&P 500 Index (reflects no deduction for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 16.00%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 1.66%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.09%