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  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;GABELLI SMALL CAP GROWTH FUND &lt;br/&gt;(the &amp;#8220;Small Cap Growth Fund&amp;#8221;)&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">This example is intended to help you compare the cost of investing in Class AAA Shares of the Small Cap Growth Fund with the cost of investing in other mutual funds. &lt;br /&gt;&lt;br /&gt;The example assumes that you invest $10,000 in the Small Cap Growth 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 Small Cap Growth Fund&amp;#8217;s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">The Small Cap Growth Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the Small Cap Growth Fund&amp;#8217;s shares are held in a taxable account. These costs, which are not reflected in the annual fund operating expenses or in the example, affect the Small Cap Growth Fund&amp;#8217;s performance. During the most recent fiscal year, the Small Cap Growth Fund&amp;#8217;s portfolio turnover rate was 7% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;Principal Investment Strategies&lt;/b&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">Under normal market conditions, the Small Cap Growth Fund invests at least 80% of its net assets in equity securities of companies that are considered to be small companies at the time the Small Cap Growth Fund makes its investment. The Small Cap Growth Fund invests primarily in the common stocks of companies which Gabelli Funds, LLC, the Small Cap Growth Fund&amp;#8217;s adviser (the &amp;#8220;Adviser&amp;#8221;), believes are likely to have rapid growth in revenues and above average rates of earnings growth. The Adviser currently characterizes small companies for the Small Cap Growth Fund as those with total common stock market values of $2 billion or less at the time of investment. &lt;br/&gt;&lt;br/&gt; In selecting investments for the Small Cap Growth Fund, the Adviser seeks issuers with a dominant market share or niche franchise in growing and/or consolidating industries. The Adviser considers for purchase the stocks of small capitalization (capitalization is the price per share multiplied by the number of shares outstanding) companies with experienced management, strong balance sheets, and rising free cash flow and earnings. The Adviser&amp;#8217;s goal is to invest long term in the stocks of companies trading at reasonable market valuations relative to perceived economic worth. &lt;br/&gt;&lt;br/&gt; Frequently, smaller companies exhibit one or more of the following traits: &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; New products or technologies&lt;/li&gt; &lt;li style="margin-left: 80px"&gt; New distribution methods&lt;/li&gt; &lt;li style="margin-left: 80px"&gt; Rapid changes in industry conditions due to regulatory or other developments&lt;/li&gt; &lt;li style="margin-left: 80px"&gt; Changes in management or similar characteristics that may result not only in expected growth in revenues but in an accelerated or above average rate of earnings growth, which would usually be reflected in capital appreciation.&lt;/li&gt;&lt;/ul&gt; In addition, because smaller companies are less actively followed by stock analysts and less information is available on which to base stock price evaluations, the market may overlook favorable trends in particular smaller growth companies and then adjust its valuation more quickly once investor interest is gained.&lt;br/&gt;&lt;br/&gt; &lt;b&gt;You May Want to Invest in the Small Cap Growth Fund if: &lt;/b&gt;&lt;br/&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; you are a long-term investor&lt;/li&gt; &lt;li style="margin-left: 80px"&gt; you seek capital appreciation&lt;/li&gt; &lt;li style="margin-left: 80px"&gt; you believe that the market will favor small capitalization stocks over the long term &lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">An investment in the Small Cap Growth Fund is not guaranteed; you may lose money by investing in the Small Cap Growth Fund. When you sell Small Cap Growth Fund shares, they may be worth more or less than what you paid for them. &lt;br/&gt;&lt;br/&gt; Investing in the Small Cap Growth Fund involves the following risks: &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Equity Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Equity risk is the risk that the prices of the securities held by the Small Cap Growth Fund will change due to general market and economic conditions, perceptions regarding the industries in which the companies issuing the securities participate, and the issuer company&amp;#8217;s particular circumstances.  &lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Value Investing Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Small Cap Growth Fund invests in &amp;#8220;value&amp;#8221; stocks. The portfolio manager may be wrong in the assessment of a company&amp;#8217;s value and the stocks the Small Cap Growth Fund holds may not reach what the portfolio manager believes are their full values. From time to time &amp;#8220;value&amp;#8221; investing falls out of favor with investors. During those periods, the Small Cap Growth Fund&amp;#8217;s relative performance may suffer. &lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Management Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;If the portfolio manager is incorrect in his assessment of the securities the Small Cap Growth Fund holds, then the value of the Small Cap Growth Fund&amp;#8217;s shares may decline.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Small Capitalization Company Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Investing in securities of small capitalization companies may involve greater risks than investing in larger, more established issuers. Smaller capitalization companies typically have relatively lower revenues, limited product lines and lack of management depth, and may have a smaller share of the market for their products or services, than larger capitalization companies. The stocks of smaller capitalization companies tend to have less trading volume than stocks of larger capitalization companies. Less trading volume may make it more difficult for our portfolio managers to sell securities of smaller capitalization companies at quoted market prices. Finally, there are periods when investing in smaller capitalization stocks fall out of favor with investors and the stocks of smaller capitalization companies underperform.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Foreign Securities Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Investments in foreign securities involve risks relating to political, social, and economic developments abroad, as well as risks resulting from the differences between the regulations to which U.S. and foreign issuers and markets are subject. These risks include expropriation, differing accounting and disclosure standards, currency exchange risks, settlement difficulties, market illiquidity, difficulties enforcing legal rights, and greater transaction costs. These risks are more pronounced in the securities of companies located in emerging markets. &lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;SMALL CAP GROWTH FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(Total Returns for the Years Ended December 31) &lt;/b&gt;</rr:BarChartHeading>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;Average Annual Total Returns &lt;br/&gt;(for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.0016</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.0141</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="USD">144</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="USD">446</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="USD">771</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="USD">1691</rr:ExpenseExampleYear10>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.376</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.217</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.059</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.191</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.073</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">-0.31</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.297</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.275</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">-0.049</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.201</rr:AnnualReturn2012>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">The Equity Income Fund seeks to provide a high level of total return on its assets with an emphasis on income.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;Fees and Expenses of the Equity Income Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">This table describes the fees and expenses that you may pay if you buy and hold Class AAA Shares of the Equity Income Fund.</rr:ExpenseNarrativeTextBlock>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_MemberReturnBeforeTaxes_Member" unitRef="pure">0.2007</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.1953</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.1373</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_MemberRussellTwentyHundredIndex_Member" unitRef="pure">0.1635</rr:AverageAnnualReturnYear01>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0545</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.0505</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.0458</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_MemberRussellTwentyHundredIndex_Member" unitRef="pure">0.0356</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1144</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.1084</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.1009</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_MemberRussellTwentyHundredIndex_Member" unitRef="pure">0.0972</rr:AverageAnnualReturnYear10>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.0015</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.014</rr:ExpensesOverAssets>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="USD">143</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="USD">443</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="USD">766</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="USD">1680</rr:ExpenseExampleYear10>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">The Small Cap Growth Fund seeks to provide a high level of capital appreciation.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;Fees and Expenses of the Small Cap Growth Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">This table describes the fees and expenses that you may pay if you buy and hold Class AAA Shares of the Small Cap Growth Fund.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">The bar chart and table that follow provide an indication of the risks of investing in the Small Cap Growth Fund by showing changes in the Small Cap Growth Fund&amp;#8217;s Class AAA Shares performance from year to year and by showing how the Small Cap Growth Fund&amp;#8217;s average annual returns for the one year, five years, and ten years compared with those of a broad based securities market index. As with all mutual funds, the Small Cap Growth Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Small Cap Growth Fund will perform in the future. Updated information on the Small Cap Growth Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">During the calendar years shown in the bar chart, the highest return for a quarter was 20.59% (quarter ended June 30, 2009) and the lowest return for a quarter was (21.87)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">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 the investor&amp;#8217;s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Small Cap Growth Fund shares through tax-deferred arrangements, such as 401(k) plans or Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member" unitRef="pure">0.07</rr:PortfolioTurnoverRate>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">The bar chart and table that follow provide an indication of the risks of investing in the Equity Income Fund by showing changes in the Equity Income Fund&amp;#8217;s Class AAA Shares performance from year to year and by showing how the Equity Income Fund&amp;#8217;s average annual returns for the one year, five years, and ten years compared with those of a broad based securities market index. As with all mutual funds, the Equity Income Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Equity Income  Fund will perform in the future. Updated information on the Equity Income Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">An investment in the Small Cap Growth Fund is not guaranteed; you may lose money by investing in the Small Cap Growth Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">The bar chart and table that follow provide an indication of the risks of investing in the Small Cap Growth Fund by showing changes in the Small Cap Growth Fund&amp;#8217;s Class AAA Shares performance from year to year and by showing how the Small Cap Growth Fund&amp;#8217;s average annual returns for the one year, five years, and ten years compared with those of a broad based securities market index.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">As with all mutual funds, the Small Cap Growth Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Small Cap Growth Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0.2059</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">-0.2187</rr:BarChartLowestQuarterlyReturn>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">During the calendar years shown in the bar chart, the highest return for a quarter was 17.59% (quarter ended June 30, 2009) and the lowest return for a quarter was (20.88)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">After-tax returns shown are not relevant to investors who hold their Small Cap Growth Fund shares through tax-deferred arrangements, such as 401(k) plans or Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1308</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.1281</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.0884</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_MemberSAndpFiveHundredIndex_Member" unitRef="pure">0.16</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0248</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.0228</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.0208</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_MemberSAndpFiveHundredIndex_Member" unitRef="pure">0.0166</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0851</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.0814</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.0747</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_MemberSAndpFiveHundredIndex_Member" unitRef="pure">0.071</rr:AverageAnnualReturnYear10>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">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 the investor&amp;#8217;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 IRAs.</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;GABELLI EQUITY INCOME FUND&lt;br/&gt;(the &amp;#8220;Equity Income Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;Shareholder Fees: &lt;/b&gt;&lt;br/&gt;(fees paid directly from your investment):</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;&lt;br/&gt;(expenses that you pay each year as a percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">This example is intended to help you compare the cost of investing in Class AAA Shares of the Equity Income Fund with the cost of investing in other mutual funds.&lt;br/&gt;&lt;br/&gt;The example assumes that you invest $10,000 in the Equity Income 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 Equity Income Fund&amp;#8217;s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">The Equity Income Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the Equity Income Fund&amp;#8217;s shares are held in a taxable account. These costs, which are not reflected in the annual fund operating expenses or in the example, affect the Equity Income Fund&amp;#8217;s performance. During the most recent fiscal year, the Equity Income Fund&amp;#8217;s portfolio turnover rate was 6% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;Principal Investment Strategies&lt;/b&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">The Equity Income Fund will seek to achieve its investment objective through a combination of capital appreciation and current income by investing, under normal market conditions, at least 80% of its net assets in income-producing equity securities. Income-producing equity securities include, for example, common stock, preferred stock and convertible securities. In making stock selections, Gabelli Funds, LLC, the Equity Income Fund&amp;#8217;s adviser (the &amp;#8220;Adviser&amp;#8221;), looks for securities that have a better yield than the average of the Standard and Poor&amp;#8217;s 500 Index (the &amp;#8220;S&amp;amp;P 500 Index&amp;#8221;), as well as capital gains potential. &lt;br /&gt;&lt;br /&gt; In selecting investments for the Equity Income Fund, the Adviser focuses on issuers that: &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; have strong free cash flow and pay regular dividends&lt;/li&gt; &lt;li style="margin-left: 60px"&gt;have potential for long-term earnings per share growth&lt;/li&gt; &lt;li style="margin-left: 60px"&gt;may be subject to a value catalyst, such as industry developments, regulatory changes, changes in management, sale or spin-off of a division, or the development of a profitable new business&lt;/li&gt; &lt;li style="margin-left: 60px"&gt; are well-managed&lt;/li&gt; &lt;li style="margin-left: 60px"&gt;will benefit from sustainable long-term economic dynamics, such as globalization of an issuer&amp;#8217;s industry or an issuer&amp;#8217;s increased focus on productivity or enhancement of services.&lt;/li&gt;&lt;/ul&gt; The Adviser also believes preferred stock and convertible securities of selected companies offer opportunities for capital appreciation as well as periodic income and may invest a portion of the Equity Income Fund&amp;#8217;s assets in such securities. This is particularly true in the case of companies that have performed below expectations. If a company&amp;#8217;s performance has been poor enough, its preferred stock and convertible debt securities will trade more like common stock than like a fixed income security and may result in above average appreciation if performance improves. Even if the credit quality of the company is not in question, the market price of the convertible security will reflect little or no element of conversion value if the price of its common stock has fallen substantially below the conversion price. This leads to the possibility of capital appreciation if the price of the common stock recovers.&lt;br /&gt;&lt;br /&gt; &lt;b&gt;You May Want to Invest in the Equity Income Fund if: &lt;/b&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; you are a long-term investor&lt;/li&gt; &lt;li style="margin-left: 60px"&gt;you are seeking income as well as capital appreciation&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">An investment in the Equity Income Fund is not guaranteed; you may lose money by investing in the Equity Income Fund. When you sell Equity Income Fund shares, they may be worth more or less than what you paid for them. &lt;br /&gt;&lt;br /&gt; Investing in the Equity Income Fund involves the following risks: &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt; Equity Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Equity risk is the risk that the prices of the securities held by the Equity Income Fund will change due to general market and economic conditions, perceptions regarding the industries in which the companies issuing the securities participate, and the issuer company&amp;#8217;s particular circumstances.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt; Value Investing Risk.&lt;/b&gt; The Equity Income Fund invests in &amp;#8220;value&amp;#8221; stocks. The portfolio manager may be wrong in the assessment of a company&amp;#8217;s value and the stocks the Equity Income Fund holds may not reach what the portfolio manager believes are their full values. From time to time &amp;#8220;value&amp;#8221; investing falls out of favor with investors. During those periods, the Equity Income Fund&amp;#8217;s relative performance may suffer.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt; Management Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;If the portfolio manager is incorrect in his assessment of the securities the Equity Income Fund holds, then the value of the Equity Income Fund&amp;#8217;s shares may decline.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Interest Rate Risk and Credit Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Investments in preferred stock and securities convertible into or exchangeable for common or preferred stock involve interest rate risk and credit risk. When interest rates decline, the value of such securities generally rises. Conversely, when interest rates rise, the value of such securities generally declines. It is also possible that the issuer of a security will not be able to make interest and principal payments when due.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; &lt;b&gt;Low Credit Quality Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Lower rated convertible securities are subject to greater credit risk, greater price volatility, and a greater risk of loss than investment grade securities. There may be less of a market for lower rated convertible securities, which could make it harder to sell them at an acceptable price.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; &lt;b&gt;Foreign Securities Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Investments in foreign securities involve risks relating to political, social, and economic developments abroad, as well as risks resulting from the differences between the regulations to which U.S. and foreign issuers and markets are subject. These risks include expropriation, differing accounting and disclosure standards, currency exchange risks, settlement difficulties, market illiquidity, difficulties enforcing legal rights, and greater transaction costs. These risks are more pronounced in the securities of companies located in emerging markets.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;EQUITY INCOME FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(Total Returns for the Years Ended December 31) &lt;/b&gt;</rr:BarChartHeading>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;b&gt;Average Annual Total Returns&lt;br/&gt;(for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_MemberReturnBeforeTaxes_Member">The Gabelli Small Cap Growth Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002855_MemberClassAaa_Member">The Gabelli Small Cap Growth Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002855_MemberClassAaa_Member">The Gabelli Small Cap Growth Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_MemberRussellTwentyHundredIndex_Member">Russell 2000 Index</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002855_MemberClassAaa_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002855_MemberClassAaa_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_MemberRussellTwentyHundredIndex_Member">(reflects no deduction for fees, expenses, or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTHEGABELLISMALLCAPGROWTHFUND column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTHEGABELLISMALLCAPGROWTHFUND column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member" unitRef="pure">0.06</rr:PortfolioTurnoverRate>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">An investment in the Equity Income Fund is not guaranteed; you may lose money by investing in the Equity Income Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">The bar chart and table that follow provide an indication of the risks of investing in the Equity Income Fund by showing changes in the Equity Income Fund&amp;#8217;s Class AAA Shares performance from year to year and by showing how the Equity Income Fund&amp;#8217;s average annual returns for the one year, five years, and ten years compared with those of a broad based securities market index.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">As with all mutual funds, the Equity Income Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Equity Income  Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.1759</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">-0.2088</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.283</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.13</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.064</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.192</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.089</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">-0.35</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.291</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.17</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.018</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">0.131</rr:AnnualReturn2012>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTHEGABELLISMALLCAPGROWTHFUND column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTHEGABELLISMALLCAPGROWTHFUNDBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTHEGABELLISMALLCAPGROWTHFUND column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_MemberReturnBeforeTaxes_Member">The Gabelli Equity Income Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002851_MemberClassAaa_Member">The Gabelli Equity Income Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002851_MemberClassAaa_Member">The Gabelli Equity Income Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002851_MemberClassAaa_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002851_MemberClassAaa_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_MemberSAndpFiveHundredIndex_Member">S&amp;amp;P 500 Index</rr:AverageAnnualReturnLabel>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_MemberSAndpFiveHundredIndex_Member">(reflects no deduction for fees, expenses, or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;Shareholder Fees: &lt;/b&gt;&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(fees paid directly from your investment):</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAaa_Member">&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(expenses that you pay each year as a percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">The Focus Five Fund seeks to provide a high level of capital appreciation.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;Fees and Expenses of the Focus Five Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">This table describes the fees and expenses that you may pay if you buy and hold Class AAA Shares of the Focus Five Fund.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">The Focus Five Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the Focus Five Fund&amp;#8217;s shares are held in a taxable account. These costs, which are not reflected in the annual fund operating expenses or in the example, affect the Focus Five Fund&amp;#8217;s performance. During the most recent fiscal year, the Focus Five Fund&amp;#8217;s portfolio turnover rate was 140% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">The Small Cap Growth Fund seeks to provide a high level of capital appreciation.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;Fees and Expenses of the Small Cap Growth Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">The table describes the fees and expenses that you may pay if you buy and hold the following classes of shares of the Small Cap Growth Fund. You may qualify for sales charge discounts on Class A Shares if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of the Gabelli family of mutual funds. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares &amp;#8212; Volume Discounts/Rights of Accumulation&amp;#8221;.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;GABELLI SMALL CAP GROWTH FUND (the &amp;#8220;Small Cap Growth Fund&amp;#8221;)&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">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 the investor&amp;#8217;s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Focus Five Fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">The bar chart and table that follow provide an indication of the risks of investing in the Focus Five Fund (including the Focus Five Fund&amp;#8217;s prior investment strategy that was in effect through March 9, 2012) by showing changes in the Focus Five Fund&amp;#8217;s Class AAA Shares performance from year to year and by showing how the Focus Five Fund&amp;#8217;s average annual returns for one year, five years, and ten years compared with those of a broad based securities market index. As with all mutual funds, the Focus Five Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Focus Five Fund will perform in the future. Updated information on the Focus Five Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.&lt;br /&gt;&lt;br /&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">During the calendar years shown in the bar chart, the highest return for a quarter was 26.63% (quarter ended June 30, 2009) and the lowest return for a quarter was (27.77)% (quarter ended December 31, 2008).  &lt;br /&gt;&lt;br /&gt;</rr:BarChartClosingTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;Shareholder Fees: &lt;/b&gt;&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(fees paid directly from your investment):</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(expenses that you pay each year as a percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">This example is intended to help you compare the cost of investing in the Small Cap Growth Fund with the cost of investing in other mutual funds.  &lt;br /&gt;&lt;br /&gt;The example assumes that you invest $10,000 in the Small Cap Growth Fund for the time periods shown 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 the Small Cap Growth Fund&amp;#8217;s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">You would pay the following expenses if you did not redeem your shares of the Small Cap Growth Fund:</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">The Small Cap Growth Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the Small Cap Growth Fund&amp;#8217;s shares are held in a taxable account. These costs, which are not reflected in the annual fund operating expenses or in the example, affect the Small Cap Growth Fund&amp;#8217;s performance. During the most recent fiscal year, the Small Cap Growth Fund&amp;#8217;s portfolio turnover rate was 7% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">The bar chart and table that follow provide an indication of the risks of investing in the Small Cap Growth Fund by showing changes in the Small Cap Growth Fund&amp;#8217;s performance from year to year and by showing how the Small Cap Growth Fund&amp;#8217;s average annual returns for the one year, five years, and ten years compared with those of a broad based securities market index. The historical performance of Class AAA Shares, which are not offered in this Prospectus, is used to calculate performance for Class A, Class C, and Class I Shares prior to their issuance. All the classes of the Small Cap Growth Fund&amp;#8217;s shares are invested in the same portfolio of securities. The annual returns of the different classes of shares will differ only to the extent that the expenses of the classes differ. As with all mutual funds, the Small Cap Growth Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Small Cap Growth Fund will perform in the future. Updated information on the Small Cap Growth Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;SMALL CAP GROWTH FUND (For the Years Ended December 31) &lt;/b&gt;</rr:BarChartHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">The bar chart above shows total returns for Class AAA Shares for the calendar year ended 2003 and total returns for Class A Shares for the calendar years ended 2004 through 2012. Sales loads are not reflected in the above chart. If sales loads were reflected, the Small Cap Growth Fund&amp;#8217;s returns would be less than those shown. During the calendar years shown in the bar chart, the highest return for a quarter was 20.52% (quarter ended June 30, 2009) and the lowest return for a quarter was (21.83)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">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. After-tax returns are shown for only Class A, and after-tax returns for other Classes will vary. Actual after-tax returns depend on the investor&amp;#8217;s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Small Cap Growth Fund shares through tax-deferred arrangements, such as 401(k) plans or Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">Under normal market conditions, the Small Cap Growth Fund invests at least 80% of its net assets in equity securities of companies that are considered to be small companies at the time the Small Cap Growth Fund makes its investment. The Small Cap Growth Fund invests primarily in the common stocks of companies which Gabelli Funds, LLC, the Small Cap Growth Fund&amp;#8217;s adviser (the &amp;#8220;Adviser&amp;#8221;), believes are likely to have rapid growth in revenues and above average rates of earnings growth. The Adviser currently characterizes small companies for the Small Cap Growth Fund as those with total common stock market values of $2 billion or less at the time of investment. &lt;br/&gt;&lt;br/&gt; In selecting investments for the Small Cap Growth Fund, the Adviser seeks issuers with a dominant market share or niche franchise in growing and/or consolidating industries. The Adviser considers for purchase the stocks of small capitalization (capitalization is the price per share multiplied by the number of shares outstanding) companies with experienced management, strong balance sheets, and rising free cash flow and earnings. The Adviser&amp;#8217;s goal is to invest long term in the stocks of companies trading at reasonable market valuations relative to perceived economic worth. &lt;br/&gt;&lt;br/&gt; Frequently, smaller companies exhibit one or more of the following traits: &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; New products or technologies&lt;/li&gt; &lt;li style="margin-left: 80px"&gt; New distribution methods&lt;/li&gt; &lt;li style="margin-left: 80px"&gt; Rapid changes in industry conditions due to regulatory or other developments&lt;/li&gt; &lt;li style="margin-left: 80px"&gt; Changes in management or similar characteristics that may result not only in expected growth in revenues but in an accelerated or above average rate of earnings growth, which would usually be reflected in capital appreciation.&lt;/li&gt;&lt;/ul&gt; In addition, because smaller companies are less actively followed by stock analysts and less information is available on which to base stock price evaluations, the market may overlook favorable trends in particular smaller growth companies and then adjust its valuation more quickly once investor interest is gained.&lt;br/&gt;&lt;br/&gt; &lt;b&gt;You May Want to Invest in the Small Cap Growth Fund if: &lt;/b&gt;&lt;br/&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; you are a long-term investor&lt;/li&gt; &lt;li style="margin-left: 80px"&gt; you seek capital appreciation&lt;/li&gt; &lt;li style="margin-left: 80px"&gt; you believe that the market will favor small capitalization stocks over the long term &lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">An investment in the Small Cap Growth Fund is not guaranteed; you may lose money by investing in the Small Cap Growth Fund. When you sell Small Cap Growth Fund shares, they may be worth more or less than what you paid for them. &lt;br/&gt;&lt;br/&gt; Investing in the Small Cap Growth Fund involves the following risks: &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Equity Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Equity risk is the risk that the prices of the securities held by the Small Cap Growth Fund will change due to general market and economic conditions, perceptions regarding the industries in which the companies issuing the securities participate, and the issuer company&amp;#8217;s particular circumstances.  &lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Value Investing Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Small Cap Growth Fund invests in &amp;#8220;value&amp;#8221; stocks. The portfolio manager may be wrong in the assessment of a company&amp;#8217;s value and the stocks the Small Cap Growth Fund holds may not reach what the portfolio manager believes are their full values. From time to time &amp;#8220;value&amp;#8221; investing falls out of favor with investors. During those periods, the Small Cap Growth Fund&amp;#8217;s relative performance may suffer. &lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Management Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;If the portfolio manager is incorrect in his assessment of the securities the Small Cap Growth Fund holds, then the value of the Small Cap Growth Fund&amp;#8217;s shares may decline.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Small Capitalization Company Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Investing in securities of small capitalization companies may involve greater risks than investing in larger, more established issuers. Smaller capitalization companies typically have relatively lower revenues, limited product lines and lack of management depth, and may have a smaller share of the market for their products or services, than larger capitalization companies. The stocks of smaller capitalization companies tend to have less trading volume than stocks of larger capitalization companies. Less trading volume may make it more difficult for our portfolio managers to sell securities of smaller capitalization companies at quoted market prices. Finally, there are periods when investing in smaller capitalization stocks fall out of favor with investors and the stocks of smaller capitalization companies underperform.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Foreign Securities Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Investments in foreign securities involve risks relating to political, social, and economic developments abroad, as well as risks resulting from the differences between the regulations to which U.S. and foreign issuers and markets are subject. These risks include expropriation, differing accounting and disclosure standards, currency exchange risks, settlement difficulties, market illiquidity, difficulties enforcing legal rights, and greater transaction costs. These risks are more pronounced in the securities of companies located in emerging markets. &lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">The Equity Income Fund seeks to provide a high level of total return on its assets with an emphasis on income.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;Fees and Expenses of the Equity Income Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">The table describes the fees and expenses that you may pay if you buy and hold the following classes of shares of the Equity Income Fund. You may qualify for sales charge discounts on Class A Shares if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of the Gabelli family of mutual funds. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares &amp;#8212; Volume Discounts/Rights of Accumulation&amp;#8221;.</rr:ExpenseNarrativeTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTHEGABELLIEQUITYINCOMEFUND column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTHEGABELLIEQUITYINCOMEFUND column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;Average Annual Total Returns &lt;br/&gt;(for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTHEGABELLIEQUITYINCOMEFUND column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002854_MemberClassAci_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002854_MemberClassAci_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_MemberRussellTwentyHundredIndex_Member">Russell 2000 Index</rr:AverageAnnualReturnLabel>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_2" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0.0116</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_3" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0.0241</rr:ExpensesOverAssets>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTHEGABELLIEQUITYINCOMEFUNDBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_4" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">-0.007</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:NetExpensesOverAssets id="Item_5" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0.0171</rr:NetExpensesOverAssets>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTHEGABELLIEQUITYINCOMEFUND column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002855_MemberClassAaa_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.0015</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="pure">0.0015</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="pure">0.0015</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.014</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="pure">0.0215</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="pure">0.0115</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="USD">174</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="USD">685</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="USD">1222</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="USD">2693</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="USD">709</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="USD">318</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="USD">117</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="USD">993</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="USD">673</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="USD">365</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="USD">1297</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="USD">1154</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="USD">633</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="USD">2158</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="USD">2483</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="USD">1398</rr:ExpenseExampleYear10>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.0575</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="USD">0</rr:ExchangeFee>
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  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="USD">673</rr:ExpenseExampleNoRedemptionYear03>
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  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="USD">1154</rr:ExpenseExampleNoRedemptionYear05>
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  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="USD">2483</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="USD">1398</rr:ExpenseExampleNoRedemptionYear10>
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  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0.206</rr:AnnualReturn2004>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_MemberReturnBeforeTaxes_Member">The Gabelli Small Cap Growth Fund Class A Shares (first issued on 12/31/03)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_MemberReturnBeforeTaxes_Member">Class I Shares (first issued on 1/11/08)</rr:AverageAnnualReturnColumnName>
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  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_6" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.0116</rr:OtherExpensesOverAssets>
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  <rr:ExpensesOverAssets id="Item_9" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.0241</rr:ExpensesOverAssets>
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  <rr:ExpensesOverAssets id="Item_10" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="pure">0.0316</rr:ExpensesOverAssets>
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  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0.2521</rr:AverageAnnualReturnYear01>
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  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0.0454</rr:AverageAnnualReturnYear05>
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  <rr:FeeWaiverOrReimbursementOverAssets id="Item_15" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">-0.007</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_16" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="pure">-0.007</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_17" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="pure">-0.007</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="USD">739</rr:ExpenseExampleYear01>
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  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="USD">909</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="USD">609</rr:ExpenseExampleYear03>
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  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="USD">1095</rr:ExpenseExampleYear05>
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  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="USD">3418</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="USD">2438</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="USD">739</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="USD">249</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="USD">149</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="USD">1220</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="USD">909</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="USD">609</rr:ExpenseExampleNoRedemptionYear03>
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  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="USD">1594</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="USD">1095</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="USD">3113</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_Member" unitRef="USD">3418</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_Member" unitRef="USD">2438</rr:ExpenseExampleNoRedemptionYear10>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;GABELLI FOCUS FIVE FUND &lt;br/&gt;(the &amp;#8220;Focus Five Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;Shareholder Fees: &lt;/b&gt;&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(fees paid directly from your investment):</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(expenses that you pay each year as a percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">Under normal circumstances, the Focus Five Fund will invest in a concentrated portfolio of twenty-five to thirty-five equity securities. The Fund could potentially invest up to 50% of its net assets in five securities that represent the largest, and thus the highest conviction, positions. The balance of the Fund&amp;#8217;s net assets will be held in short-term high grade investments or cash and cash equivalents. To the extent the Fund invests in such short-term investments or cash, it will be less likely to achieve its investment objective. The Fund may invest in U.S. and non-U.S. securities, including emerging markets securities. The Focus Five Fund&amp;#8217;s Adviser will consider for purchase the securities of all companies, regardless of the size of capitalization (capitalization is the price per share multiplied by the number of shares outstanding), whose market capitalization trades at a discount to Private Market Value (PMV) at the time of investment. PMV is the price that the Focus Five Fund&amp;#8217;s portfolio managers believe an informed buyer would pay to acquire a company&amp;#8217;s entire business. Many of the holdings in the Focus Five Fund&amp;#8217;s portfolio will be considered by the Focus Five Fund&amp;#8217;s portfolio managers to have a potential near-term catalyst, or event, that might surface underlying value. Positions will be sold when they trade near or above PMV or if a catalyst fails to materialize as anticipated. &lt;br /&gt;&lt;br /&gt;In selecting investments for the Focus Five Fund, the Adviser focuses on issuers that: &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; have potential for long-term earnings per share growth&lt;/li&gt; &lt;li style="margin-left: 80px"&gt;may be subject to a catalyst, such as industry developments, regulatory changes, changes in management, sale or spin-off of a division, or the development of a profitable new business&lt;/li&gt; &lt;li style="margin-left: 80px"&gt;are well-managed&lt;/li&gt; &lt;li style="margin-left: 80px"&gt;may be subject to rapid changes in industry conditions due to regulatory or other developments&lt;/li&gt; &lt;li style="margin-left: 80px"&gt;may have changes in management or similar characteristics that may result not only in expected growth in revenues but in an accelerated or above average rate of earnings growth, which would usually be reflected in capital appreciation.&lt;/li&gt;&lt;/ul&gt; You May Want to Invest in the Focus Five Fund if:  &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; you are a long-term investor&lt;/li&gt; &lt;li style="margin-left: 80px"&gt;you seek capital appreciation &lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">An investment in the Focus Five Fund is not guaranteed; you may lose money by investing in the Focus Five Fund. When you sell Focus Five Fund shares, they may be worth more or less than what you paid for them. &lt;br /&gt;&lt;br /&gt;Investing in the Focus Five Fund involves the following risks: &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt;&lt;b&gt;Equity Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Equity risk is the risk that the prices of the securities held by the Focus Five Fund will change due to general market and economic conditions, perceptions regarding the industries in which the companies issuing the securities participate, and the issuer company&amp;#8217;s particular circumstances.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt; &lt;b&gt;Value Investing Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Focus Five Fund invests in &amp;#8220;value&amp;#8221; stocks. The portfolio managers may be wrong in the assessment of a company&amp;#8217;s value and the stocks the Focus Five Fund holds may not reach what the portfolio managers believe are their full values. From time to time &amp;#8220;value&amp;#8221; investing falls out of favor with investors. During those periods, the Focus Five Fund&amp;#8217;s relative performance may suffer.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt;&lt;b&gt; Management Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;If the portfolio managers are incorrect in their assessment of the securities the Focus Five Fund holds, then the value of the Focus Five Fund&amp;#8217;s shares may decline.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt;&lt;b&gt; Non-Diversification Risk.&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/b&gt; As a non-diversified mutual fund, more of the Focus Five Fund&amp;#8217;s assets may be focused in the common stocks of a small number of issuers, which may make the value of the Fund&amp;#8217;s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified mutual fund.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt;&lt;b&gt; Foreign Securities Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Investments in foreign securities involve risks relating to political, social, and economic developments abroad, as well as risks resulting from the differences between the regulations to which U.S. and foreign issuers and markets are subject. These risks include expropriation, differing accounting and disclosure standards, currency exchange risks, settlement difficulties, market illiquidity, difficulties enforcing legal rights, and greater transaction costs. These risks are more pronounced in the securities of companies located in emerging markets.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;Performance&lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:ExpenseExampleNoRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleNoRedemptionTransposedTHEGABELLIEQUITYINCOMEFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleNoRedemptionTableTextBlock>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">January 31, 2014</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member" unitRef="pure">1.4</rr:PortfolioTurnoverRate>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">An investment in the Focus Five Fund is not guaranteed; you may lose money by investing in the Focus Five Fund.</rr:RiskLoseMoney>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0657</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.0634</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.0461</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1124</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1337</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_MemberSAndpFiveHundredIndex_Member" unitRef="pure">0.16</rr:AverageAnnualReturnYear01>
  <rr:RiskNondiversifiedStatus contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;ul type="square"&gt;&lt;li style="margin-left: 80px"&gt;&lt;b&gt; Non-Diversification Risk.&lt;/b&gt; As a non-diversified mutual fund, more of the Focus Five Fund&amp;#8217;s assets may be focused in the common stocks of a small number of issuers, which may make the value of the Fund&amp;#8217;s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified mutual fund.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">The bar chart and table that follow provide an indication of the risks of investing in the Focus Five Fund (including the Focus Five Fund&amp;#8217;s prior investment strategy that was in effect through March 9, 2012) by showing changes in the Focus Five Fund&amp;#8217;s Class AAA Shares performance from year to year and by showing how the Focus Five Fund&amp;#8217;s average annual returns for one year, five years, and ten years compared with those of a broad based securities market index.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0128</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.0109</rr:AverageAnnualReturnYear05>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">As with all mutual funds, the Focus Five Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Focus Five Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member" unitRef="pure">0.07</rr:PortfolioTurnoverRate>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.0106</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0171</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0275</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_MemberSAndpFiveHundredIndex_Member" unitRef="pure">0.0166</rr:AverageAnnualReturnYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">An investment in the Small Cap Growth Fund is not guaranteed; you may lose money by investing in the Small Cap Growth Fund.</rr:RiskLoseMoney>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0786</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.075</rr:AverageAnnualReturnYear10>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">The bar chart and table that follow provide an indication of the risks of investing in the Small Cap Growth Fund by showing changes in the Small Cap Growth Fund&amp;#8217;s performance from year to year and by showing how the Small Cap Growth Fund&amp;#8217;s average annual returns for the one year, five years, and ten years compared with those of a broad based securities market index.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.0688</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0779</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_MemberSAndpFiveHundredIndex_Member" unitRef="pure">0.071</rr:AverageAnnualReturnYear10>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">As with all mutual funds, the Small Cap Growth Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Small Cap Growth Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0865</rr:AverageAnnualReturnYear10>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">After-tax returns shown are not relevant to investors who hold their Focus Five Fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">After-tax returns shown are not relevant to investors who hold their Small Cap Growth Fund shares through tax-deferred arrangements, such as 401(k) plans or Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">This example is intended to help you compare the cost of investing in Class AAA Shares of the Focus Five Fund with the cost of investing in other mutual funds.&lt;br/&gt;&lt;br/&gt;The example assumes that you invest $10,000 in the Focus Five 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 Focus Five Fund&amp;#8217;s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PerformanceTableOneClassOfAfterTaxShown contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">After-tax returns are shown for only Class A, and after-tax returns for other Classes will vary.</rr:PerformanceTableOneClassOfAfterTaxShown>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.2052</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTHEGABELLIEQUITYINCOMEFUNDClassACIBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">-0.2183</rr:BarChartLowestQuarterlyReturn>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">0.2663</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member" unitRef="pure">-0.2777</rr:BarChartLowestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTHEGABELLIEQUITYINCOMEFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.0575</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOfferingPrice>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.207</rr:AnnualReturn2003>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.207</rr:AnnualReturn2004>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.064</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.11</rr:AnnualReturn2006>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:ExpenseExampleNoRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleNoRedemptionTransposedTHEGABELLIFOCUSFIVEFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleNoRedemptionTableTextBlock>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.035</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">-0.342</rr:AnnualReturn2008>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.291</rr:AnnualReturn2009>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;Average Annual Total Returns &lt;br/&gt;(for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;b&gt;FOCUS FIVE FUND &lt;/b&gt;&lt;br /&gt;&lt;b&gt;(Total Returns for the Years Ended December 31) &lt;/b&gt;</rr:BarChartHeading>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.275</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">-0.068</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.263</rr:AnnualReturn2012>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1904</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.1808</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.1274</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.244</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.2666</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_MemberSAndpFiveHundredIndex_Member" unitRef="pure">0.16</rr:AverageAnnualReturnYear01>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTHEGABELLIFOCUSFIVEFUNDClassACIBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0369</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.0332</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.0302</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0419</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0524</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_MemberSAndpFiveHundredIndex_Member" unitRef="pure">0.0166</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002850_MemberClassAci_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002850_MemberClassAci_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_MemberSAndpFiveHundredIndex_Member">S&amp;P 500 Index</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002861_MemberClassAaa_Member">The Gabelli Focus Five Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001063_MemberC000002861_MemberClassAaa_Member">The Gabelli Focus Five Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_MemberReturnBeforeTaxes_Member">The Gabelli Focus Five Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0787</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.0683</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.0668</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0775</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0864</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_MemberSAndpFiveHundredIndex_Member" unitRef="pure">0.071</rr:AverageAnnualReturnYear10>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_MemberReturnBeforeTaxes_Member">The Gabelli Equity Income Fund Class A Shares (first issued on 12/31/03):</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002850_MemberClassAci_Member">The Gabelli Equity Income Fund Class A Shares (first issued on 12/31/03):</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002850_MemberClassAci_Member">The Gabelli Equity Income Fund Class A Shares (first issued on 12/31/03):</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_MemberReturnBeforeTaxes_Member">Class C Shares (first issued on 12/31/03)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_MemberReturnBeforeTaxes_Member">Class I Shares (first issued on 1/11/08)</rr:AverageAnnualReturnColumnName>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.0016</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="pure">0.0016</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="pure">0.0016</rr:OtherExpensesOverAssets>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_MemberSAndpFiveHundredIndex_Member">(reflects no deduction for fees, expenses, or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.0141</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="pure">0.0216</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="pure">0.0116</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002861_MemberClassAaa_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001063_MemberC000002861_MemberClassAaa_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_MemberSAndpFiveHundredIndex_Member">S&amp;amp;P 500 Index</rr:AverageAnnualReturnLabel>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTHEGABELLIFOCUSFIVEFUNDBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTHEGABELLIFOCUSFIVEFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="USD">710</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="USD">319</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="USD">118</rr:ExpenseExampleYear01>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;&lt;a name="cov269090_3"&gt;&lt;/a&gt;GABELLI FOCUS FIVE FUND (the &amp;#8220;Focus Five Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="USD">996</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="USD">676</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="USD">368</rr:ExpenseExampleYear03>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">The Focus Five Fund seeks to provide a high level of capital appreciation.</rr:ObjectivePrimaryTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTHEGABELLISMALLCAPGROWTHFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="USD">1302</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="USD">1159</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="USD">638</rr:ExpenseExampleYear05>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="USD">2169</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="USD">2493</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="USD">1409</rr:ExpenseExampleYear10>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002861_MemberClassAaa_MemberReturnBeforeTaxes_Member">2002-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002861_MemberClassAaa_Member">2002-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001063_MemberC000002861_MemberClassAaa_Member">2002-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;Fees and Expenses of the Focus Five Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">The table describe the fees and expenses that you may pay if you buy and hold the following classes of shares of the Focus Five Fund. You may qualify for sales charge discounts on Class A Shares if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of the Gabelli family of mutual funds. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares &amp;#8212; Volume Discounts/Rights of Accumulation&amp;#8221;.</rr:ExpenseNarrativeTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(fees paid directly from your investment):</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt;&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(expenses that you pay each year as a percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">This example is intended to help you compare the cost of investing in the Focus Five Fund with the cost of investing in other mutual funds. &lt;br/&gt;&lt;br/&gt;The example assumes that you invest $10,000 in shares of the Focus Five Fund for the time periods indicated and then redeem all of your shares at the end of those periods. This example also assumes that your investment has a 5% return each year, and that the Focus Five Fund&amp;#8217;s operating expenses remain the same. Although your actual costs may be higher or lower based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_MemberReturnBeforeTaxes_Member">2003-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001061_MemberC000002850_MemberClassAci_Member">2003-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001061_MemberC000002850_MemberClassAci_Member">2003-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_MemberReturnBeforeTaxes_Member">2003-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_MemberReturnBeforeTaxes_Member">2008-01-11</rr:AverageAnnualReturnInceptionDate>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">The Focus Five Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the Focus Five Fund&amp;#8217;s shares are held in a taxable account. These costs, which are not reflected in the annual fund operating expenses or in the example, affect the Focus Five Fund&amp;#8217;s performance. During the most recent fiscal year, the Focus Five Fund&amp;#8217;s portfolio turnover rate was 140% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTHEGABELLISMALLCAPGROWTHFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">Under normal circumstances, the Focus Five Fund will invest in a concentrated portfolio of twenty-five to thirty-five equity securities. The Fund could potentially invest up to 50% of its net assets in five securities. The balance of the Fund&amp;#8217;s net assets will be held in short-term high grade investments or cash and cash equivalents. To the extent the Fund invests in such short-term investments or cash, it will be less likely to achieve its investment objective. The Fund may invest in U.S. and non-U.S. securities, including emerging market securities. The Focus Five Fund&amp;#8217;s Adviser will consider for purchase the securities of all companies, regardless of the size of capitalization (capitalization is the price per share multiplied by the number of shares outstanding), whose market capitalization trades at a discount to Private Market Value (PMV) at the time of investment. PMV is the price that the Focus Five Fund&amp;#8217;s portfolio managers believe an informed buyer would pay to acquire a company&amp;#8217;s entire business. Many of the holdings in the Focus Five Fund&amp;#8217;s portfolio will be considered by the Focus Five Fund&amp;#8217;s portfolio managers to have a potential near-term catalyst, or event, that might surface underlying value. Positions will be sold when they trade near or above PMV or if a catalyst fails to materialize as anticipated. &lt;br/&gt;&lt;br/&gt;In selecting investments for the Focus Five Fund, the Adviser focuses on issuers that:&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;have potential for long-term earnings per share growth&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;may be subject to a catalyst, such as industry developments, regulatory changes, changes in management, sale or spin-off of a division, or the development of a profitable new business&lt;/li&gt;&lt;li style="margin-left: 60px"&gt; are well-managed&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;may be subject to rapid changes in industry conditions due to regulatory or other developments&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;may have changes in management or similar characteristics that may result not only in expected growth in revenues but in an accelerated or above average rate of earnings growth, which would usually be reflected in capital appreciation.&lt;/li&gt;&lt;/ul&gt;&lt;b&gt;You May Want to Invest in the Focus Five Fund if: &lt;/b&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;you are a long-term investor&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;you seek capital appreciation&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">An investment in the Focus Five Fund is not guaranteed; you may lose money by investing in the Focus Five Fund. When you sell Focus Five Fund shares, they may be worth more or less than what you paid for them.&lt;br/&gt;&lt;br/&gt;Investing in the Focus Five Fund involves the following risks: &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Equity Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Equity risk is the risk that the prices of the securities held by the Focus Five Fund will change due to general market and economic conditions, perceptions regarding the industries in which the companies issuing the securities participate, and the issuer company&amp;#8217;s particular circumstances.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Value Investing Risk.&lt;/b&gt;&amp;nbsp; &amp;nbsp;&amp;nbsp;&amp;nbsp;The Focus Five Fund invests in &amp;#8220;value&amp;#8221; stocks. The portfolio managers may be wrong in the assessment of a company&amp;#8217;s value and the stocks the Focus Five Fund holds may not reach what the portfolio managers believe are their full values. From time to time &amp;#8220;value&amp;#8221; investing falls out of favor with investors. During those periods, the Focus Five Fund&amp;#8217;s relative performance may suffer.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Management Risk.&lt;/b&gt;&amp;nbsp; &amp;nbsp;&amp;nbsp;&amp;nbsp;If the portfolio managers are incorrect in their assessment of the securities the Focus Five Fund holds, then the value of the Focus Five Fund&amp;#8217;s shares may decline.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Non-Diversification Risk.&lt;/b&gt;&amp;nbsp; &amp;nbsp;&amp;nbsp;&amp;nbsp;As a non-diversified mutual fund, more of the Focus Five Fund&amp;#8217;s assets may be focused in the common stocks of a small number of issuers, which may make the value of the Fund&amp;#8217;s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified mutual fund.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Foreign Securities Risk.&lt;/b&gt;&amp;nbsp;Investments in foreign securities involve risks relating to political, social, and economic developments abroad, as well as risks resulting from the differences between the regulations to which U.S. and foreign issuers and markets are subject. These risks include expropriation, differing accounting and disclosure standards, currency exchange risks, settlement difficulties, market illiquidity, difficulties enforcing legal rights, and greater transaction costs. These risks are more pronounced in the securities of companies located in emerging markets.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">The bar chart and table that follow provide an indication of the risks of investing in the Focus Five Fund (including the Focus Five Fund&amp;#8217;s prior investment strategy that was in effect through March 9, 2012) by showing changes in the Focus Five Fund&amp;#8217;s performance from year to year and by showing how the Focus Five Fund&amp;#8217;s average annual returns for one year, five years, and ten years compared with those of a broad based securities market index. The historical performance of Class A Shares is used to calculate performance for Class I Shares prior to their issuance. All the classes of the Focus Five Fund&amp;#8217;s shares are invested in the same portfolio of securities. The annual returns of the different classes of shares will differ only to the extent that the expenses of the classes differ. As with all mutual funds, the Focus Five Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Focus Five Fund will perform in the future. Updated information on the Focus Five Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;FOCUS FIVE FUND (Total Returns for Class A Shares for the Years Ended December 31) &lt;/b&gt;</rr:BarChartHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">During the calendar years shown in the bar chart, the highest return for a quarter was 26.38% (quarter ended June 30, 2009) and the lowest return for a quarter was (27.78)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_MemberSAndpFiveHundredIndex_Member">(reflects no deductions for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="USD">710</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="USD">219</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="USD">118</rr:ExpenseExampleNoRedemptionYear01>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">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. After-tax returns are shown for only Class A, and after-tax returns for other Classes will vary. Actual after-tax returns depend on the investor&amp;#8217;s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Focus Five Fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="USD">996</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="USD">676</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="USD">368</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="USD">1302</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="USD">1159</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="USD">638</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="USD">2169</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_Member" unitRef="USD">2493</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_Member" unitRef="USD">1409</rr:ExpenseExampleNoRedemptionYear10>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;b&gt;Average Annual Total Returns&lt;br/&gt;(for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">After-tax returns shown are not relevant to investors who hold their Focus Five Fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableOneClassOfAfterTaxShown contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">After-tax returns are shown for only Class A, and after-tax returns for other Classes will vary.</rr:PerformanceTableOneClassOfAfterTaxShown>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">As with all mutual funds, the Focus Five Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Focus Five Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1317</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.1265</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.0921</rr:AverageAnnualReturnYear01>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">The bar chart and table that follow provide an indication of the risks of investing in the Focus Five Fund (including the Focus Five Fund&amp;#8217;s prior investment strategy that was in effect through March 9, 2012) by showing changes in the Focus Five Fund&amp;#8217;s performance from year to year and by showing how the Focus Five Fund&amp;#8217;s average annual returns for one year, five years, and ten years compared with those of a broad based securities market index.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1814</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.204</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_MemberRussellTwentyHundredIndex_Member" unitRef="pure">0.1635</rr:AverageAnnualReturnYear01>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">An investment in the Equity Income Fund is not guaranteed; you may lose money by investing in the Equity Income Fund. When you sell Equity Income Fund shares, they may be worth more or less than what you paid for them. &lt;br /&gt;&lt;br /&gt;Investing in the Equity Income Fund involves the following risks: &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; &lt;b&gt;Equity Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Equity risk is the risk that the prices of the securities held by the Equity Income Fund will change due to general market and economic conditions, perceptions regarding the industries in which the companies issuing the securities participate, and the issuer company&amp;#8217;s particular circumstances.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; &lt;b&gt;Value Investing Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; The Equity Income Fund invests in &amp;#8220;value&amp;#8221; stocks. The portfolio manager may be wrong in the assessment of a company&amp;#8217;s value and the stocks the Equity Income Fund holds may not reach what the portfolio manager believes are their full values. From time to time &amp;#8220;value&amp;#8221; investing falls out of favor with investors. During those periods, the Equity Income Fund&amp;#8217;s relative performance may suffer.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; &lt;b&gt;Management Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; If the portfolio manager is incorrect in his assessment of the securities the Equity Income Fund holds, then the value of the Equity Income Fund&amp;#8217;s shares may decline.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; &lt;b&gt;Interest Rate Risk and Credit Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Investments in preferred stock and securities convertible into or exchangeable for common or preferred stock involve interest rate risk and credit risk. When interest rates decline, the value of such securities generally rises. Conversely, when interest rates rise, the value of such securities generally declines. It is also possible that the issuer of a security will not be able to make interest and principal payments when due.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Low Credit Quality Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Lower rated convertible securities are subject to greater credit risk, greater price volatility, and a greater risk of loss than investment grade securities. There may be less of a market for lower rated convertible securities, which could make it harder to sell them at an acceptable price.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; &lt;b&gt;Foreign Securities Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Investments in foreign securities involve risks relating to political, social, and economic developments abroad, as well as risks resulting from the differences between the regulations to which U.S. and foreign issuers and markets are subject. These risks include expropriation, differing accounting and disclosure standards, currency exchange risks, settlement difficulties, market illiquidity, difficulties enforcing legal rights, and greater transaction costs. These risks are more pronounced in the securities of companies located in emerging markets.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.042</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.0382</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.035</rr:AverageAnnualReturnYear05>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTHEGABELLISMALLCAPGROWTHFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0467</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0571</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_MemberRussellTwentyHundredIndex_Member" unitRef="pure">0.0356</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1078</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.1019</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.0948</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.107</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1158</rr:AverageAnnualReturnYear10>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">An investment in the Focus Five Fund is not guaranteed; you may lose money by investing in the Focus Five Fund.</rr:RiskLoseMoney>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_MemberRussellTwentyHundredIndex_Member" unitRef="pure">0.0972</rr:AverageAnnualReturnYear10>
  <rr:RiskNondiversifiedStatus contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Non-Diversification Risk.&lt;/b&gt;&amp;nbsp; &amp;nbsp;&amp;nbsp;&amp;nbsp;As a non-diversified mutual fund, more of the Focus Five Fund&amp;#8217;s assets may be focused in the common stocks of a small number of issuers, which may make the value of the Fund&amp;#8217;s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified mutual fund.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNondiversifiedStatus>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">0.2638</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_Member" unitRef="pure">-0.2778</rr:BarChartLowestQuarterlyReturn>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member" unitRef="pure">1.4</rr:PortfolioTurnoverRate>
  <rr:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member" unitRef="USD">50000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">You may qualify for sales charge discounts on Class A Shares if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of the Gabelli family of mutual funds. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares &amp;#8212; Volume Discounts/Rights of Accumulation&amp;#8221;.</rr:ExpenseBreakpointDiscounts>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">January 31, 2014</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:ExpensesRestatedToReflectCurrent contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">Other Expenses and Total Annual Fund Operating Expenses have been restated to eliminate the impact of additional expenses incurred during the fiscal year ended September 30, 2012 relating to the Focus Five Fund&amp;#8217;s change in name and investment strategy.</rr:ExpensesRestatedToReflectCurrent>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_MemberSAndpFiveHundredIndex_Member">(reflects no deductions for fees, expenses, or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_MemberSAndpFiveHundredIndex_Member">S&amp;amp;P 500 Index</rr:AverageAnnualReturnLabel>
  <rr:ExpenseExampleNoRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleNoRedemptionTransposedTHEGABELLISMALLCAPGROWTHFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleNoRedemptionTableTextBlock>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002858_MemberClassAci_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001063_MemberC000002858_MemberClassAci_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_MemberReturnBeforeTaxes_Member">2003-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002854_MemberClassAci_Member">2003-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002854_MemberClassAci_Member">2003-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_MemberReturnBeforeTaxes_Member">2003-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000061073_MemberClassAci_MemberReturnBeforeTaxes_Member">2008-01-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_MemberReturnBeforeTaxes_Member">The Gabelli Focus Five Fund Class A Shares (first issued on 12/31/02):</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002858_MemberClassAci_Member">The Gabelli Focus Five Fund Class A Shares (first issued on 12/31/02):</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001063_MemberC000002858_MemberClassAci_Member">The Gabelli Focus Five Fund Class A Shares (first issued on 12/31/02):</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_MemberReturnBeforeTaxes_Member">Class C Shares (first issued on 12/31/02)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_MemberReturnBeforeTaxes_Member">Class I Shares (first issued on 1/11/08)</rr:AverageAnnualReturnColumnName>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTHEGABELLISMALLCAPGROWTHFUNDClassACIBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.217</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.059</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.191</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.073</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">-0.31</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.297</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.275</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">-0.049</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.201</rr:AnnualReturn2012>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTHEGABELLISMALLCAPGROWTHFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">The Equity Income Fund will seek to achieve its investment objective through a combination of capital appreciation and current income by investing, under normal market conditions, at least 80% of its net assets in income-producing equity securities. Income-producing equity securities include, for example, common stock, preferred stock and convertible securities. In making stock selections, Gabelli Funds, LLC, the Equity Income Fund&amp;#8217;s adviser (the &amp;#8220;Adviser&amp;#8221;), looks for securities that have a better yield than the average of the Standard and Poor&amp;#8217;s 500 Index (the &amp;#8220;S&amp;amp;P 500 Index&amp;#8221;), as well as capital gains potential. &lt;br /&gt;&lt;br /&gt; In selecting investments for the Equity Income Fund, the Adviser focuses on issuers that: &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;have strong free cash flow and pay regular dividends&lt;/li&gt;&lt;li style="margin-left: 60px"&gt; have potential for long-term earnings per share growth&lt;/li&gt;&lt;li style="margin-left: 60px"&gt; may be subject to a value catalyst, such as industry developments, regulatory changes, changes in management, sale or spin-off of a division, or the development of a profitable new business&lt;/li&gt;&lt;li style="margin-left: 60px"&gt; are well-managed&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;will benefit from sustainable long-term economic dynamics, such as globalization of an issuer&amp;#8217;s industry or an issuer&amp;#8217;s increased focus on productivity or enhancement of services.&lt;/li&gt;&lt;/ul&gt; The Adviser also believes preferred stock and convertible securities of selected companies offer opportunities for capital appreciation as well as periodic income and may invest a portion of the Equity Income Fund&amp;#8217;s assets in such securities. This is particularly true in the case of companies that have performed below expectations. If a company&amp;#8217;s performance has been poor enough, its preferred stock and convertible debt securities will trade more like common stock than like a fixed income security and may result in above average appreciation if performance improves. Even if the credit quality of the company is not in question, the market price of the convertible security will reflect little or no element of conversion value if the price of its common stock has fallen substantially below the conversion price. This leads to the possibility of capital appreciation if the price of the common stock recovers.&lt;br /&gt;&lt;br /&gt; &lt;b&gt;You May Want to Invest in the Equity Income Fund if: &lt;/b&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;you are a long-term investor&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;you are seeking income as well as capital appreciation&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(fees paid directly from your investment):</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt;&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(expenses that you pay each year as a percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">This example is intended to help you compare the cost of investing in the Equity Income Fund with the cost of investing in other mutual funds. &lt;br /&gt;&lt;br /&gt;The example assumes that you invest $10,000 in shares of the Equity Income Fund for the time periods indicated and then redeem all of your shares at the end of those periods. This example also assumes that your investment has a 5% return each year, and that the Equity Income Fund&amp;#8217;s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">The Equity Income Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the Equity Income Fund&amp;#8217;s shares are held in a taxable account. These costs, which are not reflected in the annual fund operating expenses or in the example, affect the Equity Income Fund&amp;#8217;s performance. During the most recent fiscal year, the Equity Income Fund&amp;#8217;s portfolio turnover rate was 6% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">The bar chart and table that follow provide an indication of the risks of investing in the Equity Income Fund by showing changes in the Equity Income Fund&amp;#8217;s performance from year to year and by showing how the Equity Income Fund&amp;#8217;s average annual returns for the one year, five years, and ten years compared with those of a broad based securities market index. The historical performance of Class AAA Shares, which are not offered in this Prospectus, is used to calculate performance for Class A, Class C, and Class I Shares prior to their issuance. All the classes of the Equity Income Fund&amp;#8217;s shares are invested in the same portfolio of securities. The annual returns of the different classes of shares will differ only to the extent that the expenses of the classes differ. As with all mutual funds, the Equity Income Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Equity Income Fund will perform in the future. Updated information on the Equity Income Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;EQUITY INCOME FUND (For the Years Ended December 31) &lt;/b&gt;</rr:BarChartHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">The bar chart above shows total returns for Class AAA Shares for the calendar year ended 2003 and total returns for Class A Shares for the calendar years ended 2004 through 2012. Sales loads are not reflected in the above chart. If sales loads were reflected, the Equity Income Fund&amp;#8217;s returns would be less than those shown. During the calendar years shown in the bar chart, the highest return for a quarter was 17.48% (quarter ended June 30, 2009) and the lowest return for a quarter was (20.56)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">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. After-tax returns are shown for only Class A, and after-tax returns for other Classes will vary. Actual after-tax returns depend on the investor&amp;#8217;s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Equity Income Fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;Average Annual Total Returns&lt;br/&gt; (for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member" unitRef="USD">50000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member" unitRef="pure">0.06</rr:PortfolioTurnoverRate>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTHEGABELLIFOCUSFIVEFUND column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">An investment in the Equity Income Fund is not guaranteed; you may lose money by investing in the Equity Income Fund.</rr:RiskLoseMoney>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTHEGABELLIFOCUSFIVEFUND column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTHEGABELLIFOCUSFIVEFUND column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">The bar chart and table that follow provide an indication of the risks of investing in the Equity Income Fund by showing changes in the Equity Income Fund&amp;#8217;s performance from year to year and by showing how the Equity Income Fund&amp;#8217;s average annual returns for the one year, five years, and ten years compared with those of a broad based securities market index.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">As with all mutual funds, the Equity Income Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Equity Income Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">Sales loads are not reflected in the above chart. If sales loads were reflected, the Equity Income Fund&amp;#8217;s returns would be less than those shown.</rr:BarChartDoesNotReflectSalesLoads>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableOneClassOfAfterTaxShown contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">After-tax returns are shown for only Class A, and after-tax returns for other Classes will vary.</rr:PerformanceTableOneClassOfAfterTaxShown>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">After-tax returns shown are not relevant to investors who hold their Equity Income Fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_MemberRussellTwentyHundredIndex_Member">(reflects no deduction for fees, expenses, or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.0575</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002853_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000061072_MemberClassAci_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAaa_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTHEGABELLIFOCUSFIVEFUND column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">0.1748</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002850_MemberClassAci_Member" unitRef="pure">-0.2056</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTHEGABELLIEQUITYINCOMEFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberClassAci_Member">You would pay the following expenses if you did not redeem your shares of the Focus Five Fund:</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002857_MemberClassAci_MemberReturnBeforeTaxes_Member">Class C Shares (first issued on 12/31/03)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001062_MemberC000002854_MemberClassAci_Member">The Gabelli Small Cap Growth Fund Class A Shares (first issued on 12/31/03)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001062_MemberC000002854_MemberClassAci_Member">The Gabelli Small Cap Growth Fund Class A Shares (first issued on 12/31/03)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002858_MemberClassAci_MemberReturnBeforeTaxes_Member">2002-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001063_MemberC000002858_MemberClassAci_Member">2002-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001063_MemberC000002858_MemberClassAci_Member">2002-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000002860_MemberClassAci_MemberReturnBeforeTaxes_Member">2002-12-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001063_MemberC000061074_MemberClassAci_MemberReturnBeforeTaxes_Member">2008-01-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberC000002854_MemberClassAci_Member" unitRef="pure">0.376</rr:AnnualReturn2003>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">&lt;b&gt;GABELLI EQUITY INCOME FUND (the &amp;#8220;Equity Income Fund&amp;#8221;)&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">You may qualify for sales charge discounts on Class A Shares if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of the Gabelli family of mutual funds. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares &amp;#8212; Volume Discounts/Rights of Accumulation&amp;#8221;.</rr:ExpenseBreakpointDiscounts>
  <rr:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member" unitRef="USD">50000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">You may qualify for sales charge discounts on Class A Shares if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of the Gabelli family of mutual funds. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares &amp;#8212; Volume Discounts/Rights of Accumulation&amp;#8221;.</rr:ExpenseBreakpointDiscounts>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberClassAci_Member">You would pay the following expenses if you did not redeem your shares of the Equity Income Fund:</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001061_MemberC000002851_MemberClassAaa_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_29Jan2012_28Jan2013S000001062_MemberClassAci_Member">Sales loads are not reflected in the above chart. If sales loads were reflected, the Small Cap Growth Fund&amp;#8217;s returns would be less than those shown.</rr:BarChartDoesNotReflectSalesLoads>
  <link:footnoteLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="#Item_2" xlink:label="OtherExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_OtherExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_OtherExpensesOverAssets">Other Expenses and Total Annual Fund Operating Expenses have been restated to eliminate the impact of additional expenses incurred during the fiscal year ended September 30, 2012 relating to the Focus Five Fund's change in name and investment strategy.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="OtherExpensesOverAssets" xlink:to="footnote_OtherExpensesOverAssets" />
    <link:loc xlink:type="locator" xlink:href="#Item_3" xlink:label="Item_3_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_3_lbl" xlink:to="footnote_OtherExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_4" xlink:label="FeeWaiverOrReimbursementOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets">Gabelli Funds, LLC, the Focus Five Fund's adviser (the "Adviser"), has contractually agreed to waive its investment advisory fee and/or to reimburse expenses of the Focus Five Fund to the extent necessary to maintain the Focus Five Fund's Total Annual Fund Operating Expenses (excluding brokerage, interest, taxes, acquired fund fees and expenses, distribution expenses in excess of 0.25% per year and extraordinary expenses) at 1.70% on an annualized basis for Class AAA Shares. This arrangement is in effect at least through January 31, 2014 and may not be terminated by the Adviser before such time. In addition, the Focus Five Fund has agreed, during the two-year period following any such waiver or reimbursement, to repay amounts in order that the adjusted Total Annual Fund Operating Expenses for Class AAA Shares would not exceed 1.70% on an annualized basis. The one basis point differential between the Focus Five Fund's 1.70% expense cap and the 1.71% adjusted Total Annual Fund Operating Expenses shown in the Fee Table is due to the one basis point of interest expense paid by the Focus Five Fund and not reimbursed by the Adviser.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="FeeWaiverOrReimbursementOverAssets" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" />
    <link:loc xlink:type="locator" xlink:href="#Item_5" xlink:label="Item_5_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_5_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_6" xlink:label="OtherExpensesOverAssets_2" />
    <link:footnote xlink:type="resource" xlink:label="footnote_OtherExpensesOverAssets_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_OtherExpensesOverAssets_2">  Other Expenses and Total Annual Fund Operating Expenses have been restated to eliminate the impact of additional expenses incurred during the fiscal year ended September 30, 2012 relating to the Focus Five Fund's change in name and investment strategy. </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="OtherExpensesOverAssets_2" xlink:to="footnote_OtherExpensesOverAssets_2" />
    <link:loc xlink:type="locator" xlink:href="#Item_7" xlink:label="Item_7_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_7_lbl" xlink:to="footnote_OtherExpensesOverAssets_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_8" xlink:label="Item_8_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_8_lbl" xlink:to="footnote_OtherExpensesOverAssets_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_9" xlink:label="Item_9_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_9_lbl" xlink:to="footnote_OtherExpensesOverAssets_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_10" xlink:label="Item_10_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_10_lbl" xlink:to="footnote_OtherExpensesOverAssets_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_11" xlink:label="Item_11_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_12" xlink:label="NetExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_NetExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_NetExpensesOverAssets">  Gabelli Funds, LLC, the Focus Five Fund's adviser (the "Adviser") has contractually agreed to waive its investment advisory fee and/or to reimburse expenses of the Focus Five Fund to the extent necessary to maintain the Focus Five Fund's Total Annual Fund Operating Expenses (excluding brokerage, interest, taxes, acquired fund fees and expenses, distribution expenses in excess of 0.25% per year and extraordinary expenses) at 1.70% for Class A Shares, 2.45% for Class C Shares, and 1.45% for Class I Shares on an annualized basis. This arrangement is in effect at least through January 31, 2014 and may not be terminated by the Adviser before such time. In addition, the Focus Five Fund has agreed, during the two-year period following any such waiver or reimbursement, to repay amounts in order that the adjusted Total Annual Fund Operating Expenses would not exceed 1.70% for Class A Shares, 2.45% for Class C Shares, and 1.45% for Class I Shares on an annualized basis. The one basis point differential between the Focus Five Fund's 1.70%, 2.45%, and 1.45% expense cap for Class A, Class C, and Class I Shares, respectively, and 1.71%, 2.46%, and 1.46% adjusted Total Annual Fund Operating Expenses for Class A, Class C, and Class I Shares, respectively, shown in the Fee Table is due to the one basis point of interest expense paid by the Focus Five Fund.  </link:footnote>
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