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  <rr:OperatingExpensesCaption contextRef="S000000825Member_S000000825Member">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) </rr:OperatingExpensesCaption>
  <rr:ExpensesExplanationOfNonrecurringAccountFee contextRef="S000000825Member_S000000825Member">(transfer agent charge of $15 for each wire redemption)</rr:ExpensesExplanationOfNonrecurringAccountFee>
  <rr:ShareholderFeesCaption contextRef="S000000825Member_S000000825Member">Shareholder Fees (fees paid directly from your investment) </rr:ShareholderFeesCaption>
  <rr:StrategyHeading contextRef="S000000825Member_S000000825Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="S000000825Member_S000000825Member">&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;Brandywine Fund invests principally in common stocks of U.S. companies and, to a lesser extent, in equity securities of foreign issuers, usually those that are publicly traded in the United States either directly or through American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;).&amp;#160;&amp;#160;The Fund is not subject to a percentage limit with regard to its investment in foreign issuers.&amp;#160;&amp;#160;In addition to common stocks and ADRs , equity securities in which the Fund may invest include preferred stocks, convertible securities, and rights.&amp;#160;&amp;#160; The Fund utilizes a fundamentals-driven, company-by-company investment approach that is based on the belief that you should invest in individual businesses, not in the stock market.&amp;#160;&amp;#160; It will invest in companies in a broad range of industries and generally focuses on companies whose earnings under normal economic conditions are growing by at least 20% per year and whose stocks sell at reasonable price-to-earnings ratios.&amp;#160;&amp;#160;The Fund targets fundamentally sound companies of all sizes that are experiencing positive change.&lt;/font&gt; &lt;/div&gt; &lt;br/&gt;&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;The Fund employs a firm sell discipline.&amp;#160;&amp;#160;The Fund will sell a stock:&lt;/font&gt; &lt;/div&gt; &lt;br/&gt;&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;display: inline; font-size: 10pt; font-family: Wingdings;&quot;&gt;n&lt;/font&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;With deteriorating fundamentals such as contracting margins or reduced revenue growth&lt;/font&gt; &lt;/div&gt; &lt;br/&gt;&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;display: inline; font-size: 10pt; font-family: Wingdings;&quot;&gt;n&lt;/font&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;When investor expectations have become unrealistically high&lt;/font&gt; &lt;/div&gt; &lt;br/&gt;&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;display: inline; font-size: 10pt; font-family: Wingdings;&quot;&gt;n&lt;/font&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;When it finds a better investment&lt;/font&gt; &lt;/div&gt; &lt;br/&gt;&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;While this sell discipline is likely to cause the Fund to have an annual portfolio turnover rate that may exceed 200%, it also causes the Fund to keep seeking better investment alternatives.&lt;/font&gt; &lt;/div&gt;</rr:StrategyNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="S000000825Member_S000000825Member">Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="S000000825Member_S000000825Member">&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;The bar chart and table that follow provide some indication of the risks of investing in Brandywine Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how its average annual returns over 1, 5 and 10 years compare with those of the S&amp;amp;P 500&lt;font style=&quot;DISPLAY: inline; FONT-SIZE: 70%; VERTICAL-ALIGN: text-top&quot;&gt;&amp;#174;&lt;/font&gt;, Russell 3000&lt;font style=&quot;DISPLAY: inline; FONT-SIZE: 70%; VERTICAL-ALIGN: text-top&quot;&gt;&amp;#174;&lt;/font&gt; and Russell 3000&lt;font style=&quot;DISPLAY: inline; FONT-SIZE: 70%; VERTICAL-ALIGN: text-top&quot;&gt;&amp;#174;&lt;/font&gt; Growth Indexes.&amp;#160;&amp;#160; For a description of the indexes, please see &amp;#8220;Index Descriptions&amp;#8221; on page 17. &amp;#160;&amp;#160;Updated performance is available on the Fund&amp;#8217;s website , www.brandywinefunds.com.&amp;#160;&amp;#160;Please be aware that past performance (before and after taxes) is not necessarily an indication of future performance.&lt;/font&gt; &lt;/div&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="S000000825Member_S000000825Member">Brandywine Fund, Inc. (Total return per calendar year)</rr:BarChartHeading>
  <rr:AnnualReturn2003 unitRef="pure" contextRef="S000000825Member_S000000825Member_C000002440Member" decimals="INF">0.3146</rr:AnnualReturn2003>
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  <rr:HighestQuarterlyReturnLabel contextRef="S000000825Member_S000000825Member">highest total return</rr:HighestQuarterlyReturnLabel>
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  <rr:BarChartHighestQuarterlyReturnDate contextRef="S000000825Member_S000000825Member">2010-12-31</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="S000000825Member_S000000825Member">lowest total return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn unitRef="pure" contextRef="S000000825Member_S000000825Member" decimals="INF">-0.2498</rr:BarChartLowestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="S000000825Member_S000000825Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
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  <rr:AverageAnnualReturnYear05 unitRef="pure" contextRef="S000000825Member_S000000825Member_index_Russell_3000_Growth_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember" decimals="INF">0.0315</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear10 unitRef="pure" contextRef="S000000825Member_S000000825Member_index_Russell_3000_Growth_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember" decimals="INF">0.0769</rr:AverageAnnualReturnYear10>
  <rr:PerformanceTableTextBlock contextRef="S000000825Member_S000000825Member">~ http://bradywinefunds.com/20130131/role/ScheduleAverageAnnualReturnsTransposed20005 column dei_LegalEntityAxis compact ck0000780253_S000000825Member column rr_PerformanceMeasureAxis compact * row primary compact * ~</rr:PerformanceTableTextBlock>
  <rr:PerformanceTableClosingTextBlock contextRef="S000000825Member_S000000825Member">&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;The after-tax returns above were calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&amp;#160;&amp;#160;Actual after-tax returns depend on an investor&amp;#8217;s tax situation and may differ from those shown.&amp;#160; &amp;#160;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.&amp;#160;&amp;#160;The Fund&amp;#8217;s &amp;#8220;Return after taxes on distributions and sale of Fund shares&amp;#8221; may be higher than its returns before taxes and after taxes on distributions because it may include a tax benefit resulting from the capital losses that would have been incurred.&lt;/font&gt; &lt;/div&gt; </rr:PerformanceTableClosingTextBlock>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="S000000825Member_S000000825Member">The after-tax returns above were calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="S000000825Member_S000000825Member">The bar chart and table that follow provide some indication of the risks of investing in Brandywine Fund by showing changes in the Fund&apos;s performance from year to year and by showing how its average annual returns over 1, 5 and 10 years compare with those of the S&amp;P 500, Russell 3000 and Russell 3000 Growth Indexes.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="S000000825Member_S000000825Member">Please be aware that past performance (before and after taxes) is not necessarily an indication of future performance.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="S000000825Member_S000000825Member">(reflects no deduction for fees, expenses, or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="S000000825Member_S000000825Member">The Fund&apos;s &quot;Return after taxes on distributions and sale of Fund shares&quot; may be higher than its returns before taxes and after taxes on distributions because it may include a tax benefit resulting from the capital losses that would have been incurred.</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="S000000825Member_S000000825Member">www.brandywinefunds.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="S000000825Member_S000000825Member">Actual after-tax returns depend on an investor&apos;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.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:AverageAnnualReturnCaption contextRef="S000000825Member_S000000825Member">Average Annual Total Returns (for the periods ended December 31, 2012 )</rr:AverageAnnualReturnCaption>
  <rr:RiskHeading contextRef="S000000825Member_S000000825Member">Principal Investment Risks</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="S000000825Member_S000000825Member">&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;There is a risk that you could lose all or a portion of your money on your investment in Brandywine Fund.&amp;#160;&amp;#160;This risk may increase during times of significant market volatility.&amp;#160;&amp;#160;The following additional risks could affect the value of your investment:&lt;/font&gt; &lt;/div&gt; &lt;br/&gt;&lt;table border=&quot;0&quot; cellpadding=&quot;0&quot; cellspacing=&quot;0&quot; id=&quot;hangingindent-0&quot; width=&quot;100%&quot; style=&quot;FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-SIZE: 10pt; FONT-FAMILY: times new roman&quot;&gt; &lt;tr valign=&quot;top&quot;&gt; &lt;td style=&quot;TEXT-ALIGN: right; WIDTH: 27pt&quot;&gt; &lt;div style=&quot;TEXT-ALIGN: right; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;display: inline; font-size: 10pt; font-family: Wingdings;&quot;&gt;n&lt;/font&gt;&lt;/font&gt; &lt;/div&gt; &lt;/td&gt; &lt;td style=&quot;TEXT-ALIGN: justify; TEXT-INDENT: 9pt&quot;&gt; &lt;div style=&quot;TEXT-ALIGN: justify; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;DISPLAY: inline; FONT-WEIGHT: bold&quot;&gt;Market Risk&lt;/font&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&amp;#8211;&lt;/font&gt; The prices of the stocks and ADRs in which the Fund invests may decline for a number of reasons.&amp;#160;&amp;#160;These reasons include factors that may be specific to one or more stocks in which the Fund invests as well as factors that affect the equity securities markets generally.&amp;#160;&amp;#160;The price declines may be steep, sudden and/or prolonged.&lt;/font&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;br/&gt;&lt;table border=&quot;0&quot; cellpadding=&quot;0&quot; cellspacing=&quot;0&quot; id=&quot;hangingindent-1&quot; width=&quot;100%&quot; style=&quot;FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-SIZE: 10pt; FONT-FAMILY: times new roman&quot;&gt; &lt;tr valign=&quot;top&quot;&gt; &lt;td style=&quot;TEXT-ALIGN: right; WIDTH: 27pt&quot;&gt; &lt;div style=&quot;TEXT-ALIGN: right; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;display: inline; font-size: 10pt; font-family: Wingdings;&quot;&gt;n&lt;/font&gt;&lt;/font&gt; &lt;/div&gt; &lt;/td&gt; &lt;td style=&quot;TEXT-ALIGN: justify; TEXT-INDENT: 9pt&quot;&gt; &lt;div style=&quot;TEXT-ALIGN: justify; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;DISPLAY: inline; FONT-WEIGHT: bold&quot;&gt;Foreign Security Risk&lt;/font&gt; &amp;#8211; Investments in foreign securities, even though publicly traded in the United States, may involve risks in addition to those inherent in domestic investments.&amp;#160;&amp;#160;Foreign companies may not be subject to regulatory requirements comparable to those of U.S. companies and, as a consequence, there may be less publicly available information about such companies.&amp;#160;&amp;#160;Also, foreign companies may not be subject to uniform accounting, auditing and financial reporting standards and requirements comparable to those applicable to U.S. companies.&lt;/font&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;br/&gt;&lt;table border=&quot;0&quot; cellpadding=&quot;0&quot; cellspacing=&quot;0&quot; id=&quot;hangingindent-2&quot; width=&quot;100%&quot; style=&quot;FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-SIZE: 10pt; FONT-FAMILY: times new roman&quot;&gt; &lt;tr valign=&quot;top&quot;&gt; &lt;td style=&quot;TEXT-ALIGN: right; WIDTH: 27pt&quot;&gt; &lt;div style=&quot;TEXT-ALIGN: right; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;display: inline; font-size: 10pt; font-family: Wingdings;&quot;&gt;n&lt;/font&gt;&lt;/font&gt; &lt;/div&gt; &lt;/td&gt; &lt;td style=&quot;TEXT-ALIGN: justify; TEXT-INDENT: 9pt&quot;&gt; &lt;div style=&quot;TEXT-ALIGN: justify; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;DISPLAY: inline; FONT-WEIGHT: bold&quot;&gt;Portfolio Turnover Risk&lt;/font&gt; &amp;#8211; High portfolio turnover necessarily results in greater transaction costs, such as brokerage commissions, which the Fund must pay, and short-term capital gains (or losses) to investors.&amp;#160;&amp;#160;Greater transaction costs may reduce Fund performance.&amp;#160;&amp;#160;Distributions to shareholders of short-term capital gains are taxed as ordinary income under current federal income tax laws.&lt;/font&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;br/&gt;&lt;table border=&quot;0&quot; cellpadding=&quot;0&quot; cellspacing=&quot;0&quot; id=&quot;hangingindent-3&quot; width=&quot;100%&quot; style=&quot;FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-SIZE: 10pt; FONT-FAMILY: times new roman&quot;&gt; &lt;tr valign=&quot;top&quot;&gt; &lt;td style=&quot;TEXT-ALIGN: right; WIDTH: 27pt&quot;&gt; &lt;div style=&quot;TEXT-ALIGN: right; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;display: inline; font-size: 10pt; font-family: Wingdings;&quot;&gt;n&lt;/font&gt;&lt;/font&gt; &lt;/div&gt; &lt;/td&gt; &lt;td style=&quot;TEXT-ALIGN: justify; TEXT-INDENT: 9pt&quot;&gt; &lt;div style=&quot;TEXT-ALIGN: justify; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;&lt;font style=&quot;DISPLAY: inline; FONT-WEIGHT: bold&quot;&gt;Mid-Cap Company Risk&lt;/font&gt; &amp;#8211; There is a risk that the securities of mid-capitalization companies may have limited liquidity and greater price volatility than securities of large- capitalization companies, which can negatively affect the Fund&amp;#8217;s ability to sell these securities at quoted market prices.&lt;/font&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;br/&gt;&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;The Fund is a suitable investment only for those investors who have long-term investment goals such as investing for retirement.&amp;#160;&amp;#160;If you are uncomfortable with an investment that will fluctuate in value, the Fund may not be the right choice for you.&lt;/font&gt; &lt;/div&gt;</rr:RiskNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="S000000825Member_S000000825Member">There is a risk that you could lose all or a portion of your money on your investment in Brandywine Fund. </rr:RiskLoseMoney>
  <rr:ExpenseExampleHeading contextRef="S000000825Member_S000000825Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="S000000825Member_S000000825Member">&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.&lt;/font&gt; &lt;/div&gt; &lt;br/&gt;&lt;div align=&quot;justify&quot; style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;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.&amp;#160;&amp;#160;The example also assumes that your investment has a 5% return each year and that the Fund&amp;#8217;s operating expenses remain the same.&lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleYear01 unitRef="usd" contextRef="S000000825Member_S000000825Member_C000002440Member" decimals="0">110</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 unitRef="usd" contextRef="S000000825Member_S000000825Member_C000002440Member" decimals="0">343</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 unitRef="usd" contextRef="S000000825Member_S000000825Member_C000002440Member" decimals="0">595</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 unitRef="usd" contextRef="S000000825Member_S000000825Member_C000002440Member" decimals="0">1317</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="S000000825Member_S000000825Member">~ http://bradywinefunds.com/20130131/role/ScheduleExpenseExampleTransposed20003 column dei_LegalEntityAxis compact ck0000780253_S000000825Member row primary compact * ~</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ExpenseExampleByYearCaption contextRef="S000000825Member_S000000825Member">Although your actual costs may be higher or lower, based on these assumptions, your costs would be:</rr:ExpenseExampleByYearCaption>
  <rr:ObjectiveHeading contextRef="S000000825Member_S000000825Member">Investment Objective</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="S000000825Member_S000000825Member">&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;Brandywine Fund seeks capital appreciation.&lt;/font&gt; &lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="S000000825Member_S000000825Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="S000000825Member_S000000825Member">&lt;div style=&quot;TEXT-INDENT: 18pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt&quot; align=&quot;justify&quot;&gt; &lt;font style=&quot;DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt&quot;&gt;The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio).&amp;#160;&amp;#160;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.&amp;#160;&amp;#160;These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund&amp;#8217;s performance.&amp;#160;&amp;#160;During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 256 % of the average value of its portfolio.&lt;/font&gt; &lt;/div&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverRate unitRef="pure" contextRef="S000000825Member_S000000825Member" decimals="INF">2.56</rr:PortfolioTurnoverRate>
</xbrl>
