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Label Element Value
Prospectus [Line Items] rr_ProspectusLineItems  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Dec. 31, 2021
Entity Registrant Name dei_EntityRegistrantName PFS Funds
Entity Central Index Key dei_EntityCentralIndexKey 0001103243
Entity Inv Company Type dei_EntityInvCompanyType N-1A
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Apr. 26, 2022
Document Effective Date dei_DocumentEffectiveDate May 01, 2022
Prospectus Date rr_ProspectusDate May 01, 2022
Bretton Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Summary Section
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Bretton Fund seeks 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 expenses and fees that you may pay if you buy and hold 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.
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 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 1.38% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 1.38%
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

The following 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% annual return each year and that the Fund's operating expenses remain the same each year. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading The Principal Investment Strategy of the Fund
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Bretton Fund seeks to achieve long-term capital appreciation by investing in a small number of undervalued securities. Under normal market conditions, the Fund invests primarily in common stocks of companies of all sizes, including small and micro-capitalization companies. The Fund may also invest in other types of equity securities, as well as fixed income securities. Fixed income securities in which the Fund may invest include investment-grade bonds of varying maturities. The Fund will normally hold a core position of between 15 to 20 securities. From time to time, the Fund may invest a significant portion of its assets in a particular sector. The Fund's investment adviser, Bretton Capital Management, LLC (the "Adviser"), attempts to evaluate the underlying economic values of securities and invests in securities whose market values are substantially below their estimated economic values, an approach known as "value investing." The Adviser uses fundamental research to seek companies with attractive attributes. These attributes include a defensible competitive advantage, relevant products, competent and shareholder-oriented management, growth, and a low level of debt. The Adviser seeks ethical

businesses. Although tending to focus on U.S. companies, the Adviser may also invest in foreign companies with these attributes.

The Adviser sells or reduces the Fund's position in a security (1) when it approaches the Adviser's estimate of its fair value, (2) when its economic fundamentals have deteriorated, or (3) when the facts or the analysis surrounding the reason to originally put the security in the Fund's portfolio have changed.

Although the Fund intends to invest primarily in equity and fixed income securities, occasionally the Adviser may not find enough investments that meet the Fund's criteria and maintain without limitation a significant portion of the Fund's assets in cash or cash-equivalents like money-market funds, certificates of deposit and short-term debt obligations.

The Fund is a "non-diversified" fund, which means it can invest in fewer securities at any one time than a diversified fund. Also, from time to time the Fund may invest a significant portion of its assets in a limited number of industry sectors, but will not concentrate in any particular industry.
Risk [Heading] rr_RiskHeading The Principal Risks of Investing in the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Risks in General. Domestic economic growth and market conditions, interest rate levels, and political events are among the factors affecting the securities markets of the Fund's investments. There is risk that these and other factors may adversely affect the Fund's performance. Additionally, unexpected local, regional or global events, such as war; acts of terrorism; financial or social disruptions; natural, environmental or man-made disasters; the spread of infectious illnesses or other public health issues (such as the global pandemic coronavirus disease 2019 (COVID-19)); and recessions and depressions could have a significant impact on the Fund and its investments. The loss of money is a risk of investing in the Fund.

Risks of Investing in Common Stocks. Overall stock market risks may affect the value of the Fund. Factors such as domestic economic growth and market conditions, interest rate levels, and political events affect the securities markets. When the value of the Fund's investments goes down, your investment in the Fund decreases in value and you could lose money.

Risks of Small and Medium Capitalization Companies. The Fund invests in the stocks of small and medium capitalization companies, which may subject the Fund to additional risks. The earnings and prospects of these companies are more volatile than larger companies. Small and medium capitalization companies may have limited product lines and markets and may experience higher failure rates than do larger companies.

Risks of Micro Capitalization Companies. The prices of micro-cap stocks are generally more volatile and their markets are less liquid relative to larger companies. Therefore, the Fund may experience considerably more risk of loss and its returns may differ significantly from funds investing in larger companies or other asset classes.

Risks of Investing in Undervalued Securities. Undervalued securities are, by definition, out of favor with investors, and there is no way to predict when, if ever, the securities may return to favor. Therefore, investors should purchase shares of the Fund only if they intend to be patient, long-term investors.

Foreign Risks. Foreign investments carry potential risks not associated with domestic investments, which may include currency exchange rate fluctuations; political and financial instability; less liquidity and greater volatility; lack of uniform accounting, auditing and financial reporting standards; less government regulation and supervision; increased price volatility; and delays in transaction settlement in some foreign markets.

Fixed Income Securities Risks. Investing in fixed income securities subjects the Fund to interest rate risk and credit risk. Interest rate risk is the risk that increases in interest rates can cause the prices of the Fund's investments in fixed income securities to decline. Credit risk is the

risk that the issuer of the fixed income securities may not be able to meet interest or principal payments when the securities become due.

Sector Risks. Sector risk is the possibility that companies that are in similar businesses may be similarly affected by particular economic or market events. If the Adviser invests a significant portion of the Fund's assets in a particular sector, the Fund is subject to the risk that companies in the same sector are likely to react similarly to adverse legislative or regulatory changes, adverse market conditions, and/or increased competition affecting that market segment.

Risk of Non-Diversification. The Fund is a non-diversified portfolio, which means that it has the ability to take larger positions in a smaller number of securities than a portfolio that is "diversified." Non-diversification increases the risk that the value of the Fund could go down because of the poor performance of a single investment.

Management Risks. The Adviser's implementation of the Fund's strategy may fail to produce the intended results.
Risk Lose Money [Text] rr_RiskLoseMoney The loss of money is a risk of investing in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus The Fund is a non-diversified portfolio, which means that it has the ability to take larger positions in a smaller number of securities than a portfolio that is "diversified." Non-diversification increases the risk that the value of the Fund could go down because of the poor performance of a single investment.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance History
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The information provides some indication of 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 the 1, 5 and 10 year periods compare with those of a broad measure of market performance. 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 www.brettonfund.com or by calling 1-800-231-2901. The bar chart shows calendar year total returns for the Fund for the past ten years.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information provides some indication of 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 the 1, 5 and 10 year periods compare with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-800-231-2901
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.brettonfund.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 Closing [Text Block] rr_BarChartClosingTextBlock

Best Quarter (December 31, 2011) +16.39 %      Worst Quarter (March 31, 2020) -22.25%
Performance Table Heading rr_PerformanceTableHeading AVERAGE ANNUAL TOTAL RETURN  FOR THE PERIODS ENDED 12/31/21 
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 Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and 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 Closing [Text Block] rr_PerformanceTableClosingTextBlock

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, and 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.
Bretton Fund | S&P 500 Index (does not reflect deductions for fees, expenses or taxes)  
Prospectus [Line Items] rr_ProspectusLineItems  
1 Year rr_AverageAnnualReturnYear01 28.71%
5 Years rr_AverageAnnualReturnYear05 18.47%
10 Years rr_AverageAnnualReturnYear10 16.55%
Bretton Fund | Bretton Fund Shares  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol BRTNX
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 1.35%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets none
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.35%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 137
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 428
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 739
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,624
Annual Return 2012 rr_AnnualReturn2012 15.66%
Annual Return 2013 rr_AnnualReturn2013 26.53%
Annual Return 2014 rr_AnnualReturn2014 9.79%
Annual Return 2015 rr_AnnualReturn2015 (6.59%)
Annual Return 2016 rr_AnnualReturn2016 10.68%
Annual Return 2017 rr_AnnualReturn2017 18.19%
Annual Return 2018 rr_AnnualReturn2018 (1.94%)
Annual Return 2019 rr_AnnualReturn2019 35.39%
Annual Return 2020 rr_AnnualReturn2020 8.44%
Annual Return 2021 rr_AnnualReturn2021 27.76%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2011
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.39%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.25%)
1 Year rr_AverageAnnualReturnYear01 27.76%
5 Years rr_AverageAnnualReturnYear05 16.80%
10 Years rr_AverageAnnualReturnYear10 13.70%
Bretton Fund | Bretton Fund Shares | After Taxes on Distributions  
Prospectus [Line Items] rr_ProspectusLineItems  
1 Year rr_AverageAnnualReturnYear01 27.57%
5 Years rr_AverageAnnualReturnYear05 16.70%
10 Years rr_AverageAnnualReturnYear10 13.49%
Bretton Fund | Bretton Fund Shares | After Taxes on Distributions and Sales  
Prospectus [Line Items] rr_ProspectusLineItems  
1 Year rr_AverageAnnualReturnYear01 16.57%
5 Years rr_AverageAnnualReturnYear05 13.61%
10 Years rr_AverageAnnualReturnYear10 11.48%