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  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">This table describes the fees and expenses that you may pay if you buy and hold Class AAA Shares of the Mighty Mites Fund.</rr:ExpenseNarrativeTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD INCOME FUND&lt;/b&gt;&lt;br/&gt;&lt;b&gt;(formerly, &amp;#8220;GAMCO Westwood Income Fund&amp;#8221;) &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(the &amp;#8220;Income Fund&amp;#8221;)&lt;/b&gt;</rr:RiskReturnHeading>
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  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">The Income Fund seeks to provide a high level of current income as well as long-term capital appreciation.</rr:ObjectivePrimaryTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">The SmallCap Equity Fund seeks to provide long-term capital appreciation by investing primarily in smaller capitalization equity securities.</rr:ObjectivePrimaryTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">The Intermediate Bond Fund seeks to maximize total return, while maintaining a level of current income consistent with the maintenance of principal and liquidity.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;b&gt;Fees and Expenses of the Intermediate Bond Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">&lt;b&gt;Fees and Expenses of the SmallCap Equity Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">This table describes the fees and expenses that you may pay if you buy and hold Class AAA Shares of the Intermediate Bond Fund.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;Fees and Expenses of the Income Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">This table describes the fees and expenses that you may pay if you buy and hold Class AAA Shares of the Income Fund.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">This table describes the fees and expenses that you may pay if you buy and hold Class AAA Shares of the SmallCap Equity Fund.</rr:ExpenseNarrativeTextBlock>
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  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;Shareholder Fees &lt;/b&gt;(fees paid directly from your investment):</rr:ShareholderFeesCaption>
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  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">The Intermediate Bond Fund pays transaction costs 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 Intermediate Bond 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 Intermediate Bond Fund&amp;#8217;s performance. During the most recent fiscal year, the Intermediate Bond Fund&amp;#8217;s portfolio turnover rate was 15% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">This example is intended to help you compare the cost of investing in Class AAA Shares of the SmallCap Equity 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 SmallCap Equity 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 SmallCap Equity Fund&amp;#8217;s operating expenses remain the same (taking into account the expense limitation for one year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">The SmallCap Equity 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 SmallCap Equity 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 SmallCap Equity Fund&amp;#8217;s performance. During the most recent fiscal year, the SmallCap Equity Fund&amp;#8217;s portfolio turnover rate was 39% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;(expenses that you pay each year as a&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.0157</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.0282</rr:ExpensesOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_2" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">-0.0082</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">During the periods shown in the bar chart, the highest return for a quarter was 5.58% (quarter ended September 30, 2002) and the lowest return for a quarter was (2.64)% (quarter ended June 30, 2004).</rr:BarChartClosingTextBlock>
  <rr:NetExpensesOverAssets id="Item_3" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.02</rr:NetExpensesOverAssets>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">This example is intended to help you compare the cost of investing in Class AAA Shares of the Intermediate Bond 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 Intermediate Bond 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 Intermediate Bond Fund&amp;#8217;s operating expenses remain the same (taking into account the expense limitation for one year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the Intermediate Bond Fund by showing changes in the Intermediate Bond Fund&amp;#8217;s performance from year to year, and by showing how the Intermediate Bond 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 Intermediate Bond Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Intermediate Bond Fund will perform in the future. Updated information on the Intermediate Bond Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD INTERMEDIATE BOND FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(Total returns for Class AAA Shares for the Years Ended December 31) &lt;/b&gt;</rr:BarChartHeading>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;b&gt;Average Annual Total Returns&lt;br/&gt; (for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD INTERMEDIATE BOND FUND &lt;/b&gt;&lt;br/&gt;  &lt;b&gt;(formerly, &amp;#8220;GAMCO Westwood Intermediate Bond Fund&amp;#8221;) &lt;/b&gt;&lt;br/&gt;  &lt;b&gt;(the &amp;#8220;Intermediate Bond Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">Under normal market conditions, the SmallCap Equity Fund invests at least 80% of its net assets (which includes, for purposes of this test, the amount of any borrowings for investment purposes) in a portfolio of common stocks of smaller companies. The Adviser characterizes small capitalization companies as those companies with a market capitalization (defined as shares outstanding times current market price) between $100 million and $2.5 billion at the time of the SmallCap Equity Fund&amp;#8217;s initial investment. The Adviser may change this characterization at any time in the future based upon the market capitalizations of the securities included in the Russell 2000&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Index. The Adviser closely monitors the issuers and will sell a stock if the stock achieves its price objective and has limited further potential for price increase, the forecasted price/earnings ratio exceeds the future forecasted growth rate, and/or the issuer suffers a negative change in its fundamental outlook. &lt;br /&gt;&lt;br /&gt; The SmallCap Equity Fund may also invest up to 25% of its total assets in foreign equity securities and in European Depositary Receipts (&amp;#8220;EDRs&amp;#8221;) or American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;). The SmallCap Equity Fund may also invest in foreign debt securities.&lt;br /&gt;&lt;br /&gt; &lt;b&gt;You May Want to Invest in the 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 growth of capital&lt;/li&gt;&lt;li style="margin-left: 60px"&gt; you seek investments in small capitalization growth stocks as part of your overall investment strategy&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.0031</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.0156</rr:ExpensesOverAssets>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">This example is intended to help you compare the cost of investing in Class AAA Shares of the 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 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 Income Fund&amp;#8217;s operating expenses remain the same (taking into account the expense limitation for one year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;b&gt;Shareholder Fees &lt;/b&gt;(fees paid directly from your investment):</rr:ShareholderFeesCaption>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">The SmallCap Equity Fund&amp;#8217;s share price will fluctuate with changes in the market value of the SmallCap Equity Fund&amp;#8217;s portfolio securities. Your investment in the SmallCap Equity Fund is not guaranteed; you may lose money by investing in the SmallCap Equity Fund. When you sell SmallCap Equity Fund shares, they may be worth more or less than what you paid for them. &lt;br /&gt;&lt;br /&gt;  Investing in the SmallCap Equity Fund involves the following risks: &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; If the portfolio manager is incorrect in his assessment of the securities the SmallCap Equity Fund holds, then the value of the SmallCap Equity 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;Equity Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; Equity risk is the risk that the prices of the securities held by the SmallCap Equity 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;Foreign Securities Risk.&lt;/b&gt;&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; &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Small- and Micro-Cap Company Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; Although small-cap and micro-cap companies may offer greater potential for capital appreciation than larger companies, investing in securities of small-cap and micro-cap companies may involve greater risks than investing in larger, more established issuers. Small-cap and micro-cap companies generally have limited product lines, markets, and financial resources. Their securities may trade less frequently and in more limited volume than the securities of larger, more established companies. Also, small-cap and micro-cap companies are typically subject to greater changes in earnings and business prospects than larger companies. Consequently, small-cap and micro-cap company stock prices tend to rise and fall in value more than other stocks. The risks of investing in micro-cap stocks and companies are even greater than those of investing in small-cap companies.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a&lt;br/&gt;percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the SmallCap Equity Fund by showing changes in the SmallCap Equity Fund&amp;#8217;s performance from year to year, and by showing how the SmallCap Equity 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 SmallCap Equity Fund&amp;#8217;s past performance (before and after taxes) does not predict how the SmallCap Equity Fund will perform in the future. Updated information on the SmallCap Equity Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">The 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 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 Income Fund&amp;#8217;s performance. During the most recent fiscal year, the Income Fund&amp;#8217;s portfolio turnover rate was 11% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD SMALLCAP EQUITY FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(Total returns for Class AAA Shares for the Years Ended December 31) &lt;/b&gt;</rr:BarChartHeading>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">&lt;b&gt;Average Annual Total Returns&lt;/b&gt;&lt;br/&gt;&lt;b&gt;(for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">During the periods shown in the bar chart, the highest return for a quarter was 32.14% (quarter ended June 30, 2009) and the lowest return for a quarter was (32.94)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.006</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0048</rr:OtherExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_4" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0002</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0135</rr:ExpensesOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_5" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">-0.0033</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:NetExpensesOverAssets id="Item_6" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0102</rr:NetExpensesOverAssets>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">&lt;b&gt;Shareholder Fees &lt;/b&gt;(fees paid directly from your investment):&lt;b&gt;</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;b&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="USD">159</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="USD">493</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="USD">850</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="USD">1856</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="USD">104</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="USD">395</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="USD">708</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="USD">1595</rr:ExpenseExampleYear10>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0252</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0195</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0166</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member" unitRef="pure">0.0482</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0444</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0356</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0331</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member" unitRef="pure">0.0606</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0372</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0267</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0258</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member" unitRef="pure">0.0525</rr:AverageAnnualReturnYear10>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.224</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.124</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.138</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.182</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.124</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">-0.331</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.126</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.12</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">-0.015</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.153</rr:AnnualReturn2012>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1534</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.1518</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.1017</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.16</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">-0.0086</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">-0.0101</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">-0.0076</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.0166</rr:AverageAnnualReturnYear05>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0714</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.0651</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.0622</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.071</rr:AverageAnnualReturnYear10>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the Income Fund by showing changes in the Income Fund&amp;#8217;s performance from year to year, and by showing how the Income 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 and another relevant index. The bar chart and table include the Income Fund&amp;#8217;s performance achieved prior to the changes effected in 2005 to the Income Fund&amp;#8217;s investment objective and policies. As a result, performance information prior to 2006 may not be indicative of the Income Fund&amp;#8217;s performance under the revised objective and policies. As with all mutual funds, the Income Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Income Fund will perform in the future. Updated information on the Income Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;b&gt;SUMMARY OF THE FUNDS &lt;/b&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;TETON WESTWOOD MIGHTY MITES&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;SM&lt;/sup&gt; FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(formerly &amp;#8220;GAMCO Westwood Mighty Mites&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&lt;small&gt;SM&lt;/small&gt;&lt;/sup&gt; Fund&amp;#8221;) &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(the &amp;#8220;Mighty Mites Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_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_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">This example is intended to help you compare the cost of investing in Class AAA Shares of the Mighty Mites 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 Mighty Mites 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 Mighty Mites 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:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">January 31, 2014</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member" unitRef="pure">0.39</rr:PortfolioTurnoverRate>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">Your investment in the SmallCap Equity Fund is not guaranteed; you may lose money by investing in the SmallCap Equity Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the SmallCap Equity Fund by showing changes in the SmallCap Equity Fund&amp;#8217;s performance from year to year, and by showing how the SmallCap Equity 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:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">As with all mutual funds, the SmallCap Equity Fund&amp;#8217;s past performance (before and after taxes) does not predict how the SmallCap Equity Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_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_28Jan2013S000001085_MemberClassAaaShares_Member">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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD INCOME FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(Total returns for Class AAA Shares for the Years Ended December 31)&lt;/b&gt;</rr:BarChartHeading>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">January 31, 2014</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0837</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.0837</rr:AverageAnnualReturnYear01>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member" unitRef="pure">0.11</rr:PortfolioTurnoverRate>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.0544</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.1635</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0307</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.0298</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.0262</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.0356</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0847</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.0841</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.0752</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.0972</rr:AverageAnnualReturnYear10>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">Your investment in the Income Fund is not guaranteed; you may lose money by investing in the Income Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the Income Fund by showing changes in the Income Fund&amp;#8217;s performance from year to year, and by showing how the Income 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 and another relevant index.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">The Mighty Mites 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 Mighty Mites 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 Mighty Mites Fund&amp;#8217;s performance. During the most recent fiscal year, the Mighty Mites Fund&amp;#8217;s portfolio turnover rate was 12% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">As with all mutual funds, the Income Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Income Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">January 31, 2014</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member" unitRef="pure">0.15</rr:PortfolioTurnoverRate>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">Your investment in the Intermediate Bond Fund is not guaranteed; you may lose money by investing in the Intermediate Bond Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the Intermediate Bond Fund by showing changes in the Intermediate Bond Fund&amp;#8217;s performance from year to year, and by showing how the Intermediate Bond 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:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">During the periods shown in the bar chart, the highest return for a quarter was 14.90% (quarter ended June 30, 2009) and the lowest return for a quarter was (18.33)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">As with all mutual funds, the Intermediate Bond Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Intermediate Bond Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_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_28Jan2013S000001083_MemberClassAaaShares_Member">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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">The Mighty Mites Fund primarily invests in common stocks of smaller companies that have a market capitalization (defined as shares outstanding times current market price) of $500 million or less at the time of the Mighty Mites Fund&amp;#8217;s initial investment.&lt;br/&gt;&lt;br/&gt;The Mighty Mites Fund focuses on micro-cap companies which appear to be underpriced relative to their &amp;#8220;private market value.&amp;#8221; Private market value is the value which Teton Advisors, Inc. (the &amp;#8220;Adviser&amp;#8221;) believes informed investors would be willing to pay to acquire a company. The Adviser has disciplines in place that serve as sell signals such as a security reaching a predetermined price target, a change to a company&amp;#8217;s fundamentals that make the risk/reward profile unattractive, or a need to improve the overall risk/reward profile of the Fund.&lt;br/&gt;&lt;br/&gt;Micro-cap companies may also be new or unseasoned companies which are in their very early stages of development. Micro-cap companies can also be engaged in new and emerging industries. &lt;br/&gt;&lt;br/&gt;Micro-cap companies are generally not well-known to investors and have less of an investor following than larger companies. The Adviser will attempt to capitalize on the lack of analyst attention to micro-cap stocks and the inefficiency of the micro-cap market. &lt;br/&gt;&lt;br/&gt;The Mighty Mites Fund may also invest up to 25% of its total assets in foreign equity securities and in European Depositary Receipts (&amp;#8220;EDRs&amp;#8221;) or American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;). The Mighty Mites Fund may also invest in foreign debt securities.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;You May Want to Invest in the 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 long-term growth of capital&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;you seek an exposure to the micro-cap market segment despite the potential volatility of micro-capitalization stocks&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="USD">153</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="USD">506</rr:ExpenseExampleYear03>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_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. In some instances, the &amp;#8220;Return After Taxes on Distributions&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. 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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="USD">883</rr:ExpenseExampleYear05>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;b&gt;Average Annual Total Returns&lt;/b&gt;&lt;br/&gt;&lt;b&gt;(for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member">2002-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.0558</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member">2004-06-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">-0.0264</rr:BarChartLowestQuarterlyReturn>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="USD">1942</rr:ExpenseExampleYear10>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.004</rr:OtherExpensesOverAssets>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.013</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.03</rr:AnnualReturn2004>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.0165</rr:ExpensesOverAssets>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_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:FeeWaiverOrReimbursementOverAssets id="Item_7" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">-0.0015</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.018</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.031</rr:AnnualReturn2006>
  <rr:NetExpensesOverAssets id="Item_8" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.015</rr:NetExpensesOverAssets>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.057</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.06</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.038</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.048</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.052</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_Member" unitRef="pure">0.025</rr:AnnualReturn2012>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">The Mighty Mites Fund&amp;#8217;s share price will fluctuate with changes in the market value of the Mighty Mites Fund&amp;#8217;s portfolio securities. Your investment in the Mighty Mites Fund is not guaranteed; you may lose money by investing in the Mighty Mites Fund. When you sell Mighty Mites Fund shares, they may be worth more or less than what you paid for them.&lt;br/&gt;&lt;br/&gt;Investing in the Mighty Mites Fund involves the following risks:&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 Mighty Mites Fund holds, then the value of the Mighty Mites 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;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 Mighty Mites 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;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;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Small- and Micro-Cap Company Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Although small-cap and micro-cap companies may offer greater potential for capital appreciation than larger companies, investing in securities of small-cap and micro-cap companies may involve greater risks than investing in larger, more established issuers. Small-cap and micro-cap companies generally have limited product lines, markets, and financial resources. Their securities may trade less frequently and in more limited volume than the securities of larger, more established companies. Also, small-cap and micro-cap companies are typically subject to greater changes in earnings and business prospects than larger companies. Consequently, small-cap and micro-cap company stock prices tend to rise and fall in value more than other stocks. The risks of investing in micro-cap stocks and companies are even greater than those of investing in small-cap companies.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the Mighty Mites Fund by showing changes in the Mighty Mites Fund&amp;#8217;s performance from year to year, and by showing how the Mighty Mites 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 and another relevant index. As with all mutual funds, the Mighty Mites Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Mighty Mites Fund will perform in the future. Updated information on the Mighty Mites Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD MIGHTY MITES FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(Total returns for Class AAA Shares for the Years Ended December 31)&lt;/b&gt;</rr:BarChartHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">During the periods shown in the bar chart, the highest return for a quarter was 18.44% (quarter ended September 30, 2009) and the lowest return for a quarter was (16.14)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;b&gt;Average Annual Total Returns &lt;br/&gt;(for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.335</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.269</rr:AnnualReturn2004>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.066</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.13</rr:AnnualReturn2006>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">-0.022</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">-0.288</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.179</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.132</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.026</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.092</rr:AnnualReturn2012>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.241</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.143</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.096</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.224</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.019</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">-0.429</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.524</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.31</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">-0.06</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.084</rr:AnnualReturn2012>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD EQUITY FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(formerly, &amp;#8220;GAMCO Westwood Equity Fund&amp;#8221;) &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(the &amp;#8220;Equity Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;Investment Objectives &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="USD">203</rr:ExpenseExampleYear01>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">The Equity Fund seeks to provide capital appreciation.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;Fees and Expenses of the Equity Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="USD">797</rr:ExpenseExampleYear03>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">This table describes the fees and expenses that you may pay if you buy and hold Class AAA Shares of the Equity Fund.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="USD">1416</rr:ExpenseExampleYear05>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;Shareholder Fees &lt;/b&gt;(fees paid directly from your investment):</rr:ShareholderFeesCaption>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="USD">3088</rr:ExpenseExampleYear10>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a&lt;br&gt;percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">This example is intended to help you compare the cost of investing in Class AAA Shares of the Equity 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 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 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_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">The Equity 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 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 Fund&amp;#8217;s performance. During the most recent fiscal year, the Equity Fund&amp;#8217;s portfolio turnover rate was 41% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">Under normal market conditions, the Equity Fund invests at least 80% of its net assets (which includes, for purposes of this test, the amount of any borrowings for investment purposes) in common stocks and securities which may be converted into common stocks. The Equity Fund invests in a portfolio of seasoned companies. Seasoned companies generally have market capitalizations of $1 billion or more and have been operating for at least three years. &lt;br /&gt;&lt;br /&gt;In selecting securities, Westwood Management Corporation, the Equity Fund&amp;#8217;s sub-adviser (the &amp;#8220;Sub-Adviser&amp;#8221;), maintains a list of securities of issuers which it believes have proven records and potential for above-average earnings growth. It considers purchasing a security on such list if the Sub-Adviser&amp;#8217;s forecast for growth rates and earnings exceeds Wall Street expectations. The Sub-Adviser closely monitors the issuers and will sell a stock if the Sub-Adviser expects limited future price appreciation, there is a fundamental change that negatively impacts their growth assumptions, and/or the price of the stocks declines 15% in the first forty-five days held. The Equity Fund&amp;#8217;s risk characteristics, such as beta (a measure of volatility), are generally expected to be less than those of the Standard &amp;amp; Poor&amp;#8217;s 500 Index (the &amp;#8220;S&amp;amp;P 500 Index&amp;#8221;), the Equity Fund&amp;#8217;s benchmark. &lt;br /&gt;&lt;br /&gt;The Equity Fund may also invest up to 25% of its total assets in foreign equity securities and in European Depositary Receipts (&amp;#8220;EDRs&amp;#8221;) or American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;). The Equity Fund may also invest in foreign debt securities.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;You May Want to Invest in the 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 growth of capital&lt;/li&gt;&lt;li style="margin-left: 60px"&gt; you seek a fund with a growth orientation as part of your overall investment plan&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">The Equity Fund&amp;#8217;s share price will fluctuate with changes in the market value of the Equity Fund&amp;#8217;s portfolio securities. Your investment in the Equity Fund is not guaranteed; you may lose money by investing in the Equity Fund. When you sell Equity 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 Fund involves the following risks:&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 Equity Fund holds, then the value of the Equity Fund&amp;#8217;s shares could go down.&lt;/li&gt;&lt;/ul&gt;&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 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; 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_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the Equity Fund by showing changes in the Equity Fund&amp;#8217;s performance from year to year, and by showing how the Equity 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 Equity Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Equity Fund will perform in the future. Updated information on the Equity Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD EQUITY FUND &lt;/b&gt;&lt;br /&gt;&lt;b&gt;(Total returns for Class AAA Shares for the Years Ended December 31) &lt;/b&gt;</rr:BarChartHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">During the periods shown in the bar chart, the highest return for a quarter was 13.65% (quarter ended June 30, 2003) and the lowest return for a quarter was (20.64)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0923</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.094</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.0654</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAaaShares_Member" unitRef="pure">0.137</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.16</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0126</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.0098</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.0105</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAaaShares_Member" unitRef="pure">0.0127</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.0166</rr:AverageAnnualReturnYear05>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">&lt;b&gt;Average Annual Total Returns &lt;br/&gt;(for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0782</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.0627</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.0651</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAaaShares_Member" unitRef="pure">0.0693</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.071</rr:AverageAnnualReturnYear10>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">0.3214</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_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. In some instances, the &amp;#8220;Return After Taxes on Distributions and Sale of Fund Shares&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. 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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">-0.3294</rr:BarChartLowestQuarterlyReturn>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member" unitRef="pure">0.41</rr:PortfolioTurnoverRate>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">Your investment in the Equity Fund is not guaranteed; you may lose money by investing in the Equity Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the Equity Fund by showing changes in the Equity Fund&amp;#8217;s performance from year to year, and by showing how the Equity 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:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">As with all mutual funds, the Equity Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Equity Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member">2003-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">0.1365</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_Member" unitRef="pure">-0.2064</rr:BarChartLowestQuarterlyReturn>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_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:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">In some instances, the &amp;#8220;Return After Taxes on Distributions and Sale of Fund Shares&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTETONWESTWOODINTERMEDIATEBONDFUND column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">0.149</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">-0.1833</rr:BarChartLowestQuarterlyReturn>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">Under normal market conditions the Intermediate Bond Fund invests at least 80% of its net assets (which includes, for purposes of this test, the amount of any borrowings for investment purposes) in bonds of various types and with various maturities. The Intermediate Bond Fund focuses on investment grade bonds of domestic corporations and governments. Investment grade debt securities are securities rated in the four highest ratings categories by a Nationally Recognized Statistical Rating Organization (&amp;#8220;NRSRO&amp;#8221;). &lt;br /&gt;&lt;br /&gt; Although there are no restrictions on the maximum or minimum maturity of any individual security that the Intermediate Bond Fund may invest in, generally the Intermediate Bond Fund will have a dollar weighted average maturity of three to ten years. The Intermediate Bond Fund may also invest in other types of investment grade debt securities, including debentures, notes, convertible debt securities, municipal securities, mortgage-related securities, and certain collateralized and asset-backed securities. The Intermediate Bond Fund will seek to maintain an average rating of AA or better by Standard &amp;amp; Poor&amp;#8217;s Ratings Services, a division of McGraw-Hill Companies, (&amp;#8220;Standard &amp;amp; Poor&amp;#8217;s&amp;#8221;), or comparable quality for the securities in its portfolio. &lt;br /&gt;&lt;br /&gt; In selecting securities for the Intermediate Bond Fund, the Westwood Management Corporation, the Intermediate Bond Fund&amp;#8217;s sub-adviser (the &amp;#8220;Sub-Adviser&amp;#8221;) focuses both on the fundamentals of particular issuers and yield curve positioning. The Sub-Adviser seeks to earn risk-adjusted returns superior to those of the Barclays Capital Government/Credit Bond Index over time. The Sub-Adviser invests 80% to 100% of the Fund&amp;#8217;s assets in debt securities and the remainder in cash or cash equivalents. The Sub-Adviser has disciplines in place that serve as sell signals such as a change to a company&amp;#8217;s fundamentals that make the risk/reward profile unattractive or a need to improve the overall risk/reward profile of the Fund.&lt;br /&gt;&lt;br /&gt; &lt;b&gt;You May Want to Invest in the Fund if: &lt;/b&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; you are seeking current income consistent with the maintenance of principal and liquidity&lt;/li&gt; &lt;li style="margin-left: 60px"&gt;you are conservative in your investment approach&lt;/li&gt; &lt;li style="margin-left: 60px"&gt;you are seeking exposure to investment grade bonds as part of your overall investment strategy&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">The Intermediate Bond Fund&amp;#8217;s share price will fluctuate with changes in prevailing interest rates and the market value of the Intermediate Bond Fund&amp;#8217;s portfolio securities. Your investment in the Intermediate Bond Fund is not guaranteed; you may lose money by investing in the Intermediate Bond Fund. When you sell Intermediate Bond Fund shares, they may be worth more or less than what you paid for them. &lt;br /&gt;&lt;br /&gt; Investing in the Intermediate Bond Fund involves the following risks:&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; &lt;b&gt;Management Risk.&lt;/b&gt; If the portfolio manager is incorrect in his assessment of the securities the Intermediate Bond Fund holds, then the value of the Intermediate Bond 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, Maturity Risk, and Credit Risk.&lt;/b&gt; When interest rates decline, the value of the portfolio&amp;#8217;s debt securities generally increases. Conversely, when interest rates rise, the value of the portfolio&amp;#8217;s debt securities generally declines. The magnitude of the increase or decline will often be greater for longer-term debt securities than shorter-term debt securities. It is also possible that the issuer of a debt 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;Pre-Payment Risk.&lt;/b&gt; The Intermediate Bond Fund may experience losses when an issuer exercises its right to pay principal on an obligation held by the Intermediate Bond Fund (such as a mortgage-backed security) earlier than expected. This may happen during a period of declining interest rates. Under these circumstances, the Intermediate Bond Fund may be unable to recoup all of its initial investment and will suffer from having to invest in lower yielding securities. The loss of higher yielding securities and the reinvestment at lower interest rates can reduce the Intermediate Bond Fund&amp;#8217;s income, total return, and share price.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTETONWESTWOODINTERMEDIATEBONDFUND column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member" unitRef="pure">0.12</rr:PortfolioTurnoverRate>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">Your investment in the Mighty Mites Fund is not guaranteed; you may lose money by investing in the Mighty Mites Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the Mighty Mites Fund by showing changes in the Mighty Mites Fund&amp;#8217;s performance from year to year, and by showing how the Mighty Mites 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 and another relevant index.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">As with all mutual funds, the Mighty Mites Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Mighty Mites Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTETONWESTWOODINTERMEDIATEBONDFUND column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTETONWESTWOODINCOMEFUND column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTETONWESTWOODINCOMEFUND column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_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_28Jan2013S000001084_MemberClassAaaShares_Member">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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTETONWESTWOODINCOMEFUND column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTETONWESTWOODINCOMEFUNDBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTETONWESTWOODINTERMEDIATEBONDFUNDBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">TETON Westwood SmallCap Equity Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001085_MemberC000002934_MemberClassAaaShares_Member">TETON Westwood SmallCap Equity Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001085_MemberC000002934_MemberClassAaaShares_Member">TETON Westwood SmallCap Equity Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member">Index</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001085_MemberC000002934_MemberClassAaaShares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001085_MemberC000002934_MemberClassAaaShares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member">Russell 2000 Index</rr:AverageAnnualReturnLabel>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.0021</rr:OtherExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_9" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.0147</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">TETON Westwood Intermediate Bond Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001083_MemberC000002924_MemberClassAaaShares_Member">TETON Westwood Intermediate Bond Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001083_MemberC000002924_MemberClassAaaShares_Member">TETON Westwood Intermediate Bond Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member">Index</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">TETON Westwood Equity Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001081_MemberC000002918_MemberClassAaaShares_Member">TETON Westwood Equity Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001081_MemberC000002918_MemberClassAaaShares_Member">TETON Westwood Equity Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member">Index</rr:AverageAnnualReturnColumnName>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002918_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001081_MemberC000002918_MemberClassAaaShares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001081_MemberC000002918_MemberClassAaaShares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002924_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001083_MemberC000002924_MemberClassAaaShares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001083_MemberC000002924_MemberClassAaaShares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member">Barclays Government/Credit Bond Index</rr:AverageAnnualReturnLabel>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="USD">150</rr:ExpenseExampleYear01>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="USD">465</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="USD">803</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="USD">1757</rr:ExpenseExampleYear10>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.259</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.187</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.072</rr:AnnualReturn2005>
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  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.198</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.074</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">-0.239</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.275</rr:AnnualReturn2009>
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  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.281</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">-0.058</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.182</rr:AnnualReturn2012>
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  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.1844</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">-0.1614</rr:BarChartLowestQuarterlyReturn>
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  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1822</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.1777</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.124</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.1635</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAaaShares_Member" unitRef="pure">0.1975</rr:AverageAnnualReturnYear01>
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  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">Under normal market conditions, the Income Fund invests at least 80% of its net assets (which includes, for the purposes of this test, the amount of any borrowings for investment purposes) in dividend-paying and/or interest bearing equity and fixed income securities. The Income Fund&amp;#8217;s investments may include dividend-paying common stocks, preferred stocks, convertible preferred stocks, selected debt instruments, publicly traded real estate investment trusts (&amp;#8220;REITs&amp;#8221;), master limited partnerships, royalty trusts, money market instruments, and other income-producing securities.&lt;br/&gt;&lt;br/&gt; The Adviser invests in companies with strong and improving cash flows sufficient to support a healthy or rising level of income. It uses proprietary, fundamental research to find appropriate securities for purchase. Securities considered for purchase have:&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;attractive fundamentals and valuations based on the Adviser&amp;#8217;s internal research&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;issuers with strong management teams and/or&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;issuers with good balance sheet fundamentals&lt;/li&gt;&lt;/ul&gt;The Adviser will consider selling a security if fundamentals become unfavorable within the issuer&amp;#8217;s internal operations or industry, there is limited growth opportunity, the issuer is at risk of losing its competitive edge, the issuer is serving markets with slowing growth, and/or the level of income produced becomes unattractive or unsustainable.&lt;br/&gt;&lt;br/&gt;The Income Fund may also invest up to 25% of its total assets in foreign equity securities and in European Depositary Receipts (&amp;#8220;EDRs&amp;#8221;) or American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;). The Income Fund may also invest in foreign debt securities.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;You May Want to Invest in the 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 a high level of current income as well as growth of capital&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">The Income Fund&amp;#8217;s share price will fluctuate with changes in the market value of the Income Fund&amp;#8217;s portfolio securities and changes in prevailing interest rates. Your investment in the Income Fund is not guaranteed; you may lose money by investing in the Income Fund. When you sell 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 Income Fund involves the following risks:&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;blockquote&gt; &lt;b&gt;Management Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;If the portfolio manager is incorrect in her assessment of the securities the Income Fund holds, then the value of the Income Fund&amp;#8217;s shares may decline.&lt;/blockquote&gt;&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;blockquote&gt; &lt;b&gt;Interest Rate Risk, Maturity Risk, and Credit Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;When interest rates decline, the value of the portfolio&amp;#8217;s debt securities generally increases. Conversely, when interest rates rise, the value of the portfolio&amp;#8217;s debt securities generally declines. The magnitude of the increase or decline will often be greater for longer-term debt securities than shorter-term debt securities. It is also possible that the issuer of a debt security will not be able to make interest and principal payments when due.&lt;/blockquote&gt;&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;blockquote&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;/blockquote&gt;&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0673</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.0634</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.0571</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.0356</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAaaShares_Member" unitRef="pure">0.0146</rr:AverageAnnualReturnYear05>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.04</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.005</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="USD">571</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="USD">959</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="USD">1372</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="USD">2522</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="USD">328</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="USD">734</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="USD">1267</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="USD">2725</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="USD">127</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="USD">428</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="USD">752</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="USD">1667</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="USD">959</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="USD">1372</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="USD">2522</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="USD">228</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="USD">734</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="USD">1267</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="USD">2725</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="USD">127</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="USD">428</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="USD">752</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="USD">1667</rr:ExpenseExampleNoRedemptionYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1106</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.1012</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">0.096</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.0972</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAaaShares_Member" unitRef="pure">0.0842</rr:AverageAnnualReturnYear10>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD SMALLCAP EQUITY FUND&lt;/b&gt;&lt;br/&gt;&lt;b&gt;(formerly, &amp;#8220;GAMCO Westwood SmallCap Equity Fund&amp;#8221;) &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(the &amp;#8220;SmallCap Equity Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">The SmallCap Equity Fund seeks to provide long-term capital appreciation by investing primarily in smaller capitalization equity securities.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;Fees and Expenses of the SmallCap Equity Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">This table describes the fees and expenses that you may pay if you buy and hold shares of the SmallCap Equity Fund. You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">This example is intended to help you compare the cost of investing in the SmallCap Equity 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 SmallCap Equity Fund for the time periods indicated and then redeem all of your shares at the end of those periods except as noted. The example also assumes that your investment has a 5% return each year and that the SmallCap Equity Fund&amp;#8217;s operating expenses remain the same (taking into account the expense limitation for one year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:  &lt;br /&gt;&lt;br /&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002934_MemberClassAaaShares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;b&gt;Fees and Expenses of the Income Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">This table describes the fees and expenses that you may pay if you buy and hold shares of the Income Fund. You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;&lt;br /&gt;&lt;br /&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">The SmallCap Equity 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 SmallCap Equity 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 SmallCap Equity Fund&amp;#8217;s performance. During the most recent fiscal year, the SmallCap Equity Fund&amp;#8217;s portfolio turnover rate was 39% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.04</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">During the periods shown in the bar chart, the highest return for a quarter was 32.03% (quarter ended June 30, 2009) and the lowest return for a quarter was (32.91)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member">S&amp;P 500 Index</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">TETON Westwood Mighty Mites Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001084_MemberC000002928_MemberClassAaaShares_Member">TETON Westwood Mighty Mites Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001084_MemberC000002928_MemberClassAaaShares_Member">TETON Westwood Mighty Mites Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAaaShares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001084_MemberC000002928_MemberClassAaaShares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001084_MemberC000002928_MemberClassAaaShares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member">Russell 2000 Index</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAaaShares_Member">Russell Microcap&amp;#153; Index</rr:AverageAnnualReturnLabel>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAaaShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAaaShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.005</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">TETON Westwood Income Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001082_MemberC000002922_MemberClassAaaShares_Member">TETON Westwood Income Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001082_MemberC000002922_MemberClassAaaShares_Member">TETON Westwood Income Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAaaShares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.0157</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="pure">0.0157</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="pure">0.0157</rr:OtherExpensesOverAssets>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001082_MemberC000002922_MemberClassAaaShares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001082_MemberC000002922_MemberClassAaaShares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAaaShares_Member">Lipper Equity Income Funds Average</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member">S&amp;P 500 Index</rr:AverageAnnualReturnLabel>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.0307</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="pure">0.0357</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="pure">0.0257</rr:ExpensesOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_10" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">-0.0082</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_11" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="pure">-0.0082</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_12" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="pure">-0.0082</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:NetExpensesOverAssets id="Item_13" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.0225</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_14" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="pure">0.0275</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_15" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="pure">0.0175</rr:NetExpensesOverAssets>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;b&gt;SUMMARY OF THE FUNDS&lt;br/&gt;&lt;br/&gt;TETON WESTWOOD MIGHTY MITES&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;SM&lt;/sup&gt; FUND&lt;br/&gt;(formerly, &amp;#8220;GAMCO Westwood Mighty Mites&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;SM&lt;/sup&gt; Fund&amp;#8221;)&lt;br/&gt;(the &amp;#8220;Mighty Mites Fund&amp;#8221;)&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;b&gt;Investment Objective &lt;/b&gt;&lt;br /&gt;&lt;br /&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">The Mighty Mites Fund seeks to provide long-term capital appreciation by investing primarily in micro-capitalization equity securities.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAaaShares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;b&gt;Fees and Expenses of the Mighty Mites Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">This table describes the fees and expenses that you may pay if you buy and hold shares of the Mighty Mites Fund. You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseNarrativeTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTETONWESTWOODINCOMEFUND column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;TETON WESTWOOD SMALLCAP EQUITY FUND (formerly, &amp;#8220;GAMCO Westwood SmallCap Equity Fund&amp;#8221;) (the &amp;#8220;SmallCap Equity Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;Shareholder Fees&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;(fees paid directly from your investment):&lt;/b&gt;</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;Annual Fund Operating Expenses&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):&lt;/b&gt;</rr:OperatingExpensesCaption>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">Under normal market conditions, the SmallCap Equity Fund invests at least 80% of its net assets (which includes, for purposes of this test, the amount of any borrowings for investment purposes) in a portfolio of common stocks of smaller companies. The Adviser characterizes small capitalization companies as those companies with a market capitalization (defined as shares outstanding times current market price) between $100 million and $2.5 billion at the time of the SmallCap Equity Fund&amp;#8217;s initial investment. The Adviser may change this characterization at any time in the future based upon the market capitalizations of the securities included in the Russell 2000&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Index. The Adviser closely monitors the issuers and will sell a stock if the stock achieves its price objective and has limited further potential for a price increase, the forecasted price/earnings ratio exceeds the future forecasted growth rate, and/or the issuer suffers a negative change in its fundamental outlook. &lt;br /&gt;&lt;br /&gt;The SmallCap Equity Fund may also invest up to 25% of its total assets in foreign securities and in European Depositary Receipts (&amp;#8220;EDRs&amp;#8221;) or American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;). The SmallCap Equity Fund may also invest in foreign debt securities. &lt;br /&gt;&lt;br /&gt;&lt;b&gt;You May Want to Invest in the 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 growth of capital&lt;/li&gt;&lt;li style="margin-left: 60px"&gt; you seek investments in small capitalization growth stocks as part of your overall investment strategy&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">The SmallCap Equity Fund&amp;#8217;s share price will fluctuate with changes in the market value of the SmallCap Equity Fund&amp;#8217;s portfolio securities. Your investment in the SmallCap Equity Fund is not guaranteed; you may lose money by investing in the SmallCap Equity Fund. When you sell SmallCap Equity Fund shares, they may be worth more or less than what you paid for them. &lt;br /&gt;&lt;br /&gt;Investing in the SmallCap Equity Fund involves the following risks: &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 SmallCap Equity Fund holds, then the value of the SmallCap Equity 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;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 SmallCap Equity 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;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;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt; &lt;b&gt;Small- and Micro-Cap Company Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Although small-cap and micro-cap companies may offer greater potential for capital appreciation than larger companies, investing in securities of small-cap and micro-cap companies may involve greater risks than investing in larger, more established issuers. Small-cap and micro-cap companies generally have limited product lines, markets, and financial resources. Their securities may trade less frequently and in more limited volume than the securities of larger, more established companies. Also, small-cap and micro-cap companies are typically subject to greater changes in earnings and business prospects than larger companies. Consequently, small-cap and micro-cap company stock prices tend to rise and fall in value more than other stocks. The risks of investing in micro-cap stocks and companies are even greater than those of investing in small-cap companies.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">The bar chart and table provide an indication of the risks of investing in the SmallCap Equity Fund by showing changes in the SmallCap Equity Fund&amp;#8217;s performance from year to year, and by showing how the SmallCap Equity 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 SmallCap Equity Fund&amp;#8217;s past performance (before and after taxes) does not predict how the SmallCap Equity Fund will perform in the future. Updated information on the SmallCap Equity Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">TETON WESTWOOD SMALLCAP EQUITY FUND (Total returns for Class A Shares for the Years Ended December 31)</rr:BarChartHeading>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;b&gt;Average Annual Total Returns &lt;br/&gt;(for the periods ended December 31, 2012,&lt;br/&gt; with maximum sales charges, if applicable)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">The returns shown for Class I Shares prior to its actual inception date are those of the Class AAA Shares of the SmallCap Equity Fund which are offered in a separate prospectus. All Classes of the SmallCap Equity Fund would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Classes do not have the same expenses. &lt;br/&gt;&lt;br/&gt;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. In some instances, the &amp;#8220;Return After Taxes on Distributions&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. 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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs, (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_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_28Jan2013S000001084_MemberClassAbcAndIshares_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&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;your investment):</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">This example is intended to help you compare the cost of investing in the Mighty Mites 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 Mighty Mites Fund for the time periods indicated and then redeem all of your shares at the end of those periods, except as noted. The example also assumes that your investment has a 5% return each year and that the Mighty Mites 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:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="USD">619</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="USD">378</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="USD">178</rr:ExpenseExampleYear01>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="USD">1236</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="USD">1019</rr:ExpenseExampleYear03>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">The Mighty Mites 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 Mighty Mites 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 Mighty Mites Fund&amp;#8217;s performance. During the most recent fiscal year, the Mighty Mites Fund&amp;#8217;s portfolio turnover rate was 12% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="USD">722</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="USD">1878</rr:ExpenseExampleYear05>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="USD">1781</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="USD">1292</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="USD">3593</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="USD">3783</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="USD">2844</rr:ExpenseExampleYear10>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTETONWESTWOODMIGHTYMITESFUND column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">The Mighty Mites Fund primarily invests in common stocks of smaller companies that have a market capitalization (defined as shares outstanding times current market price) of $500 million or less at the time of the Mighty Mites Fund&amp;#8217;s initial investment. &lt;br /&gt;&lt;br /&gt;The Mighty Mites Fund focuses on micro-cap companies which appear to be underpriced relative to their &amp;#8220;private market value.&amp;#8221; Private market value is the value which Teton Advisors, Inc. (the &amp;#8220;Adviser&amp;#8221;) believes informed investors would be willing to pay to acquire a company. The Adviser has disciplines in place that serve as sell signals such as a security reaching a predetermined price target, a change to a company&amp;#8217;s fundamentals that make the risk/reward profile unattractive, or a need to improve the overall risk/reward profile of the Fund. &lt;br /&gt;&lt;br /&gt;Micro-cap companies may also be new or unseasoned companies which are in their very early stages of development. Micro-cap companies can also be engaged in new and emerging industries. &lt;br /&gt;&lt;br /&gt;Micro-cap companies are generally not well-known to investors and have less of an investor following than larger companies. The Adviser will attempt to capitalize on the lack of analyst attention to micro-cap stocks and the inefficiency of the micro-cap market. &lt;br /&gt;&lt;br /&gt;The Mighty Mites Fund may also invest up to 25% of its total assets in foreign securities and in European Depositary Receipts (&amp;#8220;EDRs&amp;#8221;) or American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;). The Mighty Mites Fund may also invest in foreign debt securities.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;You May Want to Invest in the 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 long-term growth of capital&lt;/li&gt;&lt;li style="margin-left: 60px"&gt; you seek an exposure to the micro-cap market segment despite the potential volatility of micro-capitalization stocks&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTETONWESTWOODMIGHTYMITESFUND column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member" unitRef="pure">0.39</rr:PortfolioTurnoverRate>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">Your investment in the SmallCap Equity Fund is not guaranteed; you may lose money by investing in the SmallCap Equity Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">The bar chart and table provide an indication of the risks of investing in the SmallCap Equity Fund by showing changes in the SmallCap Equity Fund&amp;#8217;s performance from year to year, and by showing how the SmallCap Equity 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:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">As with all mutual funds, the SmallCap Equity Fund&amp;#8217;s past performance (before and after taxes) does not predict how the SmallCap Equity Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_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:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">In some instances, the &amp;#8220;Return After Taxes on Distributions&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs, (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTETONWESTWOODMIGHTYMITESFUND column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="USD">619</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="USD">278</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="USD">178</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="USD">1236</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="USD">1019</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="USD">722</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="USD">1878</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="USD">1781</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="USD">1292</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="USD">3593</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="USD">3783</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="USD">2844</rr:ExpenseExampleNoRedemptionYear10>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;b&gt;Principal Risks &lt;/b&gt;&lt;br /&gt;&lt;br /&gt;</rr:RiskHeading>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.3203</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">-0.3291</rr:BarChartLowestQuarterlyReturn>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002922_MemberClassAaaShares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOther>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">The 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 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 Income Fund&amp;#8217;s performance. During the most recent fiscal year, the Income Fund&amp;#8217;s portfolio turnover rate was 11% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;b&gt;Principal Risks: &lt;/b&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">During the periods shown in the bar chart, the highest return for a quarter was 14.88% (quarter ended June 30, 2009) and the lowest return for a quarter was (18.39)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTETONWESTWOODMIGHTYMITESFUNDBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">The Mighty Mites Fund&amp;#8217;s share price will fluctuate with changes in the market value of the Mighty Mites Fund&amp;#8217;s portfolio securities. Your investment in the Mighty Mites Fund is not guaranteed; you may lose money by investing in the Mighty Mites Fund. When you sell Mighty Mites Fund shares, they may be worth more or less than what you paid for them.&lt;br /&gt;&lt;br /&gt;&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 Mighty Mites 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; 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 Mighty Mites Fund holds, then the value of the Mighty Mites 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; 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;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Small- and Micro-Cap Company Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Although small-cap and micro-cap companies may offer greater potential for capital appreciation than larger companies, investing in securities of small-cap and micro-cap companies may involve greater risks than investing in larger, more established issuers. Small-cap and micro-cap companies generally have limited product lines, markets, and financial resources. Their securities may trade less frequently and in more limited volume than the securities of larger, more established companies. Also, small-cap and micro-cap companies are typically subject to greater changes in earnings and business prospects than larger companies. Consequently, small-cap and micro-cap company stock prices tend to rise and fall in value more than other stocks. The risks of investing in micro-cap stocks and companies are even greater than those of investing in small-cap companies.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0469</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.0479</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.0344</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0751</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.095</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAciShares_Member" unitRef="pure">0.137</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAciShares_Member" unitRef="pure">0.16</rr:AverageAnnualReturnYear01>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">The bar chart and table provide an indication of the risks of investing in the Mighty Mites Fund by showing changes in the Mighty Mites Fund&amp;#8217;s performance from year to year, and by showing how the Mighty Mites 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 well as another relevant index. As with all mutual funds, the Mighty Mites Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Mighty Mites Fund will perform in the future. Updated information on the Mighty Mites Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0017</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">-0.0008</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.0012</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.005</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0151</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAciShares_Member" unitRef="pure">0.0127</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAciShares_Member" unitRef="pure">0.0166</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0712</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.057</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.0594</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0709</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0796</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAciShares_Member" unitRef="pure">0.0693</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAciShares_Member" unitRef="pure">0.071</rr:AverageAnnualReturnYear10>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">During the periods shown in the bar chart, the highest return for a quarter was 18.40% (quarter ended September 30, 2009) and the lowest return for a quarter was (16.10)% (quarter ended December 31, 2008). &lt;br /&gt;&lt;br /&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTETONWESTWOODMIGHTYMITESFUND column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;b&gt;Average Annual Total Returns&lt;br/&gt;(for the periods ended December 31, 2012,&lt;br/&gt;with maximum sales charge, if applicable)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.004</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="pure">0.004</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="pure">0.004</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.019</rr:ExpensesOverAssets>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.04</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="pure">0.024</rr:ExpensesOverAssets>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="pure">0.014</rr:ExpensesOverAssets>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;b&gt;TETON WESTWOOD MIGHTY MITES FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(Total returns for Class A Shares for the Years Ended December 31)&lt;/b&gt;</rr:BarChartHeading>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_16" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">-0.0015</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_17" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="pure">-0.0015</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_18" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="pure">-0.0015</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">The returns shown for Class I Shares prior to its actual inception date are those of the Class AAA Shares of the Mighty Mites Fund which are offered in a separate prospectus. All Classes of the Mighty Mites Fund would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Classes do not have the same expenses. &lt;br /&gt;&lt;br /&gt;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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).  &lt;br /&gt;&lt;br /&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:NetExpensesOverAssets id="Item_19" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.0175</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_20" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="pure">0.0225</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_21" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="pure">0.0125</rr:NetExpensesOverAssets>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.0031</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="pure">0.0031</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="pure">0.0031</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.0181</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="pure">0.0231</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="pure">0.0131</rr:ExpensesOverAssets>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;b&gt;TETON WESTWOOD INCOME FUND&lt;/b&gt;&lt;br/&gt;&lt;b&gt;(formerly, &amp;#8220;GAMCO Westwood Income Fund&amp;#8221;) &lt;/b&gt;&lt;br/&gt;  &lt;b&gt;(the &amp;#8220;Income Fund&amp;#8221;)&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">You would pay the following expenses if you did not redeem your shares of the Mighty Mites Fund:&lt;br /&gt;&lt;br /&gt;</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002928_MemberClassAaaShares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">This example is intended to help you compare the cost of investing in the 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 Income Fund for the time periods indicated and then redeem all of your shares at the end of those periods except as noted. The example also assumes that your investment has a 5% return each year and that the Income Fund&amp;#8217;s operating expenses remain the same (taking into account the expense limitation for one year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">You would pay the following expenses if you did not redeem your shares of the SmallCap Equity Fund:</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="USD">577</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="USD">334</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="USD">133</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="USD">947</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="USD">721</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="USD">415</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="USD">1341</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="USD">1235</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="USD">718</rr:ExpenseExampleYear05>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">The bar chart and table provide an indication of the risks of investing in the Income Fund by showing changes in the Income Fund&amp;#8217;s performance from year to year, and by showing how the Income 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 and another relevant index. The bar chart and table primarily reflect the Income Fund&amp;#8217;s performance achieved prior to the changes effected in 2005 to the Income Fund&amp;#8217;s investment objective and policies. As with all mutual funds, the Income Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Income Fund will perform in the future. Updated information on the Income Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="USD">2442</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="USD">2646</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="USD">1579</rr:ExpenseExampleYear10>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.04</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="pure">0.05</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="USD">577</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="USD">234</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="USD">133</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="USD">947</rr:ExpenseExampleNoRedemptionYear03>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;b&gt;TETON WESTWOOD INCOME FUND &lt;/b&gt;&lt;b&gt;(Total returns for Class A Shares for the Years Ended December 31)&lt;/b&gt;</rr:BarChartHeading>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="USD">721</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="USD">415</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="USD">1341</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="USD">1235</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="USD">718</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="USD">2442</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberClassAciShares_Member" unitRef="USD">2646</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberClassAciShares_Member" unitRef="USD">1579</rr:ExpenseExampleNoRedemptionYear10>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;b&gt;Average Annual Total Returns&lt;br/&gt; (for the periods ended December 31, 2012,&lt;br/&gt;with maximum sales charge, if applicable)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseBreakpointDiscounts>
  <rr:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member" unitRef="USD">100000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member" unitRef="pure">0.12</rr:PortfolioTurnoverRate>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">Your investment in the Mighty Mites Fund is not guaranteed; you may lose money by investing in the Mighty Mites Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">The bar chart and table provide an indication of the risks of investing in the Mighty Mites Fund by showing changes in the Mighty Mites Fund&amp;#8217;s performance from year to year, and by showing how the Mighty Mites 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 well as another relevant index.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">As with all mutual funds, the Mighty Mites Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Mighty Mites Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">Salesloads are not reflected in the above chart. If sales loads were reflected, the Mighty Mites Fund&amp;#8217;s returns would be less than those shown.</rr:BarChartDoesNotReflectSalesLoads>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_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:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:BarChartReturnsForClassNotOfferedInProspectus contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">The returns shown for Class I Shares prior to its actual inception date are those of the Class AAA Shares of the Mighty Mites Fund which are offered in a separate prospectus.</rr:BarChartReturnsForClassNotOfferedInProspectus>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_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_28Jan2013S000001084_MemberClassAbcAndIshares_Member">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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.184</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_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:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">-0.161</rr:BarChartLowestQuarterlyReturn>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.1048</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.1042</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.0699</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.1569</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.1355</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAciShares_Member" unitRef="pure">0.16</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">-0.0191</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">-0.02</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">-0.006</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">-0.016</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAciShares_Member" unitRef="pure">0.0166</rr:AverageAnnualReturnYear05>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0377</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.0379</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.0246</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0659</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0871</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAciShares_Member" unitRef="pure">0.1635</rr:AverageAnnualReturnYear01>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.005</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0644</rr:AverageAnnualReturnYear10>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.0027</rr:OtherExpensesOverAssets>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.0585</rr:AverageAnnualReturnYear10>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="pure">0.0027</rr:OtherExpensesOverAssets>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.056</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0634</rr:AverageAnnualReturnYear10>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="pure">0.0027</rr:OtherExpensesOverAssets>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAciShares_Member" unitRef="pure">0.071</rr:AverageAnnualReturnYear10>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="pure">0.0027</rr:OtherExpensesOverAssets>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0199</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.0191</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.017</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0232</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0334</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAciShares_Member" unitRef="pure">0.0356</rr:AverageAnnualReturnYear05>
  <rr:AnnualReturn2003 id="Item_22" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.331</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 id="Item_23" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.267</rr:AnnualReturn2004>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.0152</rr:ExpensesOverAssets>
  <rr:AnnualReturn2005 id="Item_24" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.063</rr:AnnualReturn2005>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="pure">0.0202</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="pure">0.0202</rr:ExpensesOverAssets>
  <rr:AnnualReturn2006 id="Item_25" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.126</rr:AnnualReturn2006>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="pure">0.0102</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.078</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.0774</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.069</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0752</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0861</rr:AverageAnnualReturnYear10>
  <rr:AnnualReturn2007 id="Item_26" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">-0.023</rr:AnnualReturn2007>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAciShares_Member" unitRef="pure">0.0972</rr:AverageAnnualReturnYear10>
  <rr:AnnualReturn2008 id="Item_27" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">-0.289</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_28" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.175</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_29" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.129</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 id="Item_30" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.023</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 id="Item_31" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.09</rr:AnnualReturn2012>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.04</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="pure">0.05</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">January 31, 2014</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member" unitRef="pure">0.11</rr:PortfolioTurnoverRate>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">Your investment in the Income Fund is not guaranteed; you may lose money by investing in the Income Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">The bar chart and table provide an indication of the risks of investing in the Income Fund by showing changes in the Income Fund&amp;#8217;s performance from year to year, and by showing how the Income 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 and another relevant index.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">As with all mutual funds, the Income Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Income Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="USD">548</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="USD">705</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="USD">305</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="USD">104</rr:ExpenseExampleYear01>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="USD">861</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="USD">934</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="USD">634</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="USD">325</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="USD">1196</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="USD">1288</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="USD">1088</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="USD">563</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="USD">2140</rr:ExpenseExampleYear10>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="USD">2220</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="USD">2348</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="USD">1248</rr:ExpenseExampleYear10>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">0.1488</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">-0.1839</rr:BarChartLowestQuarterlyReturn>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberReturnBeforeTaxes_MemberClassAciShares_Member">TETON Westwood SmallCap Equity Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001085_MemberC000002931_MemberClassAciShares_Member">TETON Westwood SmallCap Equity Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001085_MemberC000002931_MemberClassAciShares_Member">TETON Westwood SmallCap Equity Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Class C Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Class I Shares (commenced operations on January 11, 2008)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAciShares_Member">Index</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001085_MemberC000002931_MemberClassAciShares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001085_MemberC000002931_MemberClassAciShares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAciShares_Member">Russell 2000 Index</rr:AverageAnnualReturnLabel>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberRussellTwentyHundredIndex_MemberClassAciShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="USD">548</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="USD">205</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="USD">205</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="USD">104</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="USD">861</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="USD">634</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="USD">634</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="USD">325</rr:ExpenseExampleNoRedemptionYear03>
  <rr:AnnualReturn2003 id="Item_32" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.239</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 id="Item_33" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.141</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 id="Item_34" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.093</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 id="Item_35" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.223</rr:AnnualReturn2006>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="USD">1196</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="USD">1088</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="USD">1088</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="USD">563</rr:ExpenseExampleNoRedemptionYear05>
  <rr:AnnualReturn2007 id="Item_36" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.016</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_37" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">-0.43</rr:AnnualReturn2008>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="USD">2140</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_Member" unitRef="USD">2220</rr:ExpenseExampleNoRedemptionYear10>
  <rr:AnnualReturn2009 id="Item_38" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.518</rr:AnnualReturn2009>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_Member" unitRef="USD">2348</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_Member" unitRef="USD">1248</rr:ExpenseExampleNoRedemptionYear10>
  <rr:AnnualReturn2010 id="Item_39" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.307</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 id="Item_40" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">-0.061</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 id="Item_41" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0.081</rr:AnnualReturn2012>
  <rr:AnnualReturn2003 id="Item_42" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.141</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 id="Item_43" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.086</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 id="Item_44" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.09</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 id="Item_45" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.121</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 id="Item_46" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.1</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_47" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">-0.195</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_48" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.095</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_49" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.089</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 id="Item_50" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 id="Item_51" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.104</rr:AnnualReturn2012>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberReturnBeforeTaxes_MemberClassAciShares_Member">TETON Westwood Income Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001082_MemberC000002919_MemberClassAciShares_Member">TETON Westwood Income Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001082_MemberC000002919_MemberClassAciShares_Member">TETON Westwood Income Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Class C Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Class I Shares (commenced operations on January 11, 2008)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001082_MemberC000002919_MemberClassAciShares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001082_MemberC000002919_MemberClassAciShares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAciShares_Member">Lipper Equity Income Funds Average</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAciShares_Member">S&amp;P 500 Index</rr:AverageAnnualReturnLabel>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAciShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAciShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0602</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.0608</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.0443</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0479</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0893</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1099</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0482</rr:AverageAnnualReturnYear01>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.005</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.0021</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="pure">0.0021</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="pure">0.0021</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="pure">0.0021</rr:OtherExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_52" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_53" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_54" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_55" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.0172</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="pure">0.0222</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="pure">0.0222</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="pure">0.0122</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0053</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.0031</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.0043</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0044</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0087</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0187</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0606</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0166</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0342</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.16</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.1153</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0551</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.0474</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.0461</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.054</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0542</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0634</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0525</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.071</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0636</rr:AverageAnnualReturnYear10>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">The Income Fund&amp;#8217;s share price will fluctuate with changes in the market value of the Income Fund&amp;#8217;s portfolio securities and changes in prevailing interest rates. Your investment in the Income Fund is not guaranteed; you may lose money by investing in the Income Fund. When you sell 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 Income Fund involves the following risks: &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 her assessment of the securities the Income Fund holds, then the value of the 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, Maturity Risk, and Credit Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;When interest rates decline, the value of the portfolio&amp;#8217;s debt securities generally increases. Conversely, when interest rates rise, the value of the portfolio&amp;#8217;s debt securities generally declines. The magnitude of the increase or decline will often be greater for longer-term debt securities than shorter-term debt securities. It is also possible that the issuer of a debt 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;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:AnnualReturn2003 id="Item_56" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.221</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 id="Item_57" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.121</rr:AnnualReturn2004>
  <rr:AnnualReturn2006 id="Item_58" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.179</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 id="Item_59" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.122</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_60" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">-0.334</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_61" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.123</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_62" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.118</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 id="Item_63" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">-0.017</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 id="Item_64" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.151</rr:AnnualReturn2012>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="USD">568</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="USD">725</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="USD">325</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="USD">124</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="USD">920</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="USD">994</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="USD">694</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="USD">387</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="USD">1296</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="USD">1390</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="USD">1190</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="USD">670</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="USD">2349</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="USD">2429</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="USD">2554</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="USD">1477</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="USD">568</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="USD">225</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="USD">225</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="USD">124</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="USD">920</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="USD">694</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="USD">694</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="USD">387</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="USD">1296</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="USD">1190</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="USD">1190</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="USD">670</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="USD">2349</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_Member" unitRef="USD">2429</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_Member" unitRef="USD">2554</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_Member" unitRef="USD">1477</rr:ExpenseExampleNoRedemptionYear10>
  <rr:AnnualReturn2003 id="Item_65" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.256</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 id="Item_66" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.184</rr:AnnualReturn2004>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">Under normal market conditions, the Income Fund invests at least 80% of its net assets (which includes, for the purposes of this test, the amount of any borrowings for investment purposes) in dividend-paying and/or interest bearing equity and fixed income securities. The Income Fund&amp;#8217;s investments may include dividend-paying common stocks, preferred stocks, convertible preferred stocks, selected debt instruments, publicly traded real estate investment trusts (&amp;#8220;REITs&amp;#8221;), master limited partnerships, royalty trusts, money market instruments, and other income-producing securities. &lt;br/&gt;&lt;br/&gt;The Adviser invests in companies with strong and improving cash flows sufficient to support a healthy or rising level of income. It uses proprietary, fundamental research to find appropriate securities for purchase. Securities considered for purchase have: &lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;attractive fundamentals and valuations based on the Adviser&amp;#8217;s internal research&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;issuers with strong management teams and/or&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;issuers with good balance sheet fundamentals&lt;/li&gt;&lt;/ul&gt;The Adviser will consider selling a security if fundamentals become unfavorable within the issuer&amp;#8217;s internal operations or industry, there is limited growth opportunity, the issuer is at risk of losing its competitive edge, the issuer is serving markets with slowing growth, and/or the level of income produced becomes unattractive or unsustainable. &lt;br/&gt;&lt;br/&gt;The Income Fund may also invest up to 25% of its total assets in foreign equity securities and in European Depositary Receipts (&amp;#8220;EDRs&amp;#8221;) or American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;). The Income Fund may also invest in foreign debt securities.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;You May Want to Invest in the 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 a high level of current income as well as growth of capital&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002919_MemberClassAciShares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000002921_MemberClassAciShares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberClassAciShares_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">TETON Westwood Balanced Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001080_MemberC000002911_MemberClassAbcAndIshares_Member">TETON Westwood Balanced Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001080_MemberC000002911_MemberClassAbcAndIshares_Member">TETON Westwood Balanced Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Class B Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Class C Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Class I Shares (commenced operations on January 11, 2008)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAbcAndIshares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001080_MemberC000002911_MemberClassAbcAndIshares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001080_MemberC000002911_MemberClassAbcAndIshares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002913_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002914_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member">Barclays Government/Credit Bond Index</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAbcAndIshares_Member">S&amp;P 500 Index</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member">60% S&amp;P 500 Index and 40% Barclays Government/Credit Bond Index</rr:AverageAnnualReturnLabel>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAbcAndIshares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">You would pay the following expenses if you did not redeem your shares of the Income Fund:</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000061063_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">2008-01-11</rr:AverageAnnualReturnInceptionDate>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002933_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberClassAciShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">The Balanced Fund seeks to provide capital appreciation and current income resulting in a high total investment return consistent with prudent investment risk and a balanced investment approach.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;b&gt;Fees and Expenses of the Balanced Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">This table describes the fees and expenses that you may pay if you buy and hold shares of the Balanced Fund. You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">The Balanced 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 Balanced 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 Balanced Fund&amp;#8217;s performance. During the most recent fiscal year, the Balanced Fund&amp;#8217;s portfolio turnover rate was 34% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">The bar chart and table provide an indication of the risks of investing in the Balanced Fund by showing changes in the Balanced Fund&amp;#8217;s performance from year to year, and by showing how the Balanced 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 and other relevant indices. As with all mutual funds, the Balanced Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Balanced Fund will perform in the future. Updated information on the Balanced Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">During the periods shown in the bar chart, the highest return for a quarter was 9.48% (quarter ended June 30, 2003) and the lowest return for a quarter was (11.21)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">Sales loads are not reflected in the above chart. If sales loads were reflected, the Income Fund&amp;#8217;s returns would be less than those shown.</rr:BarChartDoesNotReflectSalesLoads>
  <rr:AnnualReturn2005 id="Item_67" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.069</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 id="Item_68" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.196</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 id="Item_69" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.071</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_70" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">-0.24</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_71" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.272</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_72" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.278</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 id="Item_73" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">-0.058</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 id="Item_74" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.179</rr:AnnualReturn2012>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1317</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.1278</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.0908</rr:AverageAnnualReturnYear01>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;b&gt;TETON WESTWOOD BALANCED FUND&lt;/b&gt; &lt;b&gt;(formerly, &amp;#8220;GAMCO Westwood Balanced Fund&amp;#8221;) &lt;/b&gt; &lt;b&gt;(the &amp;#8220;Balanced Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1239</rr:AverageAnnualReturnYear01>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_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:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1634</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.185</rr:AverageAnnualReturnYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_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 &lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;your investment):</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.1635</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.1975</rr:AverageAnnualReturnYear01>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">The Balanced Fund invests in a combination of equity and debt securities. The Balanced Fund is primarily equity-oriented, and uses a top-down approach in seeking to provide equity-like returns but with lower volatility than a fully invested equity portfolio. Westwood Management Corporation, the Balanced Fund&amp;#8217;s sub-adviser (the &amp;#8220;Sub-Adviser&amp;#8221;) will typically invest 30% to 70% of the Balanced Fund&amp;#8217;s assets in equity securities and 70% to 30% in debt securities, and the balance of the Balanced Fund&amp;#8217;s assets in cash or cash equivalents. The actual mix of assets will vary depending on the Sub-Adviser&amp;#8217;s analysis of market and economic conditions. &lt;br/&gt;&lt;br/&gt;The Balanced Fund invests in stocks of seasoned companies. Seasoned companies generally have market capitalizations of $1 billion or more and have been operating for at least three years. The Sub-Adviser chooses stocks of seasoned companies with proven records and above-average earnings growth potential. The Sub-Adviser has disciplines in place that serve as sell signals such as a security reaching a predetermined price target, a change to a company&amp;#8217;s fundamentals that make the risk/reward profile unattractive, or a need to improve the overall risk/reward profile of the Balanced Fund. &lt;br/&gt;&lt;br/&gt;The debt securities held by the Balanced Fund are investment grade securities of corporate and government issuers and commercial paper and mortgage- and asset-backed securities. Investment grade debt securities are securities rated in one of the four highest ratings categories by a Nationally Recognized Statistical Rating Organization (&amp;#8220;NRSRO&amp;#8221;). There are no restrictions on the maximum or minimum maturity of any individual security that the Balanced Fund may invest in. &lt;br/&gt;&lt;br/&gt;The Balanced Fund may also invest up to 25% of its total assets in foreign equity securities and in European Depositary Receipts (&amp;#8220;EDRs&amp;#8221;) or American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;). The Balanced Fund may also invest in foreign debt securities. &lt;br/&gt;&lt;br/&gt;&lt;b&gt;You May Want to Invest in the 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 both growth of capital and current income&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;you want participation in market growth with some emphasis on preserving assets in "down" markets&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;b&gt;TETON WESTWOOD BALANCED FUND &lt;/b&gt;&lt;b&gt;(Total returns for Class A Shares for the Years Ended December 31)&lt;/b&gt;</rr:BarChartHeading>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;b&gt;Average Annual Total Returns&lt;/b&gt;&lt;br/&gt;&lt;b&gt;(for the periods ended December 31, 2012,&lt;/b&gt;&lt;br/&gt;&lt;b&gt;with maximum sales charge, if applicable)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0562</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.0525</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.0474</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0558</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0594</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0699</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0356</rr:AverageAnnualReturnYear05>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">The Balanced Fund is subject to the risk that its allocations between equity and debt securities may underperform other allocations. The Balanced Fund&amp;#8217;s share price will fluctuate with changes in the market value of the Balanced Fund&amp;#8217;s portfolio securities. Your investment in the Balanced Fund is not guaranteed; you may lose money by investing in the Balanced Fund. When you sell Balanced Fund shares, they may be worth more or less than what you paid for them.&lt;br/&gt;&lt;br/&gt;Investing in the Balanced Fund involves the following risks: &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 Balanced Fund holds, then the value of the Balanced 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;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 Balanced 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;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;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Interest Rate Risk, Maturity Risk, and Credit Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;When interest rates decline, the value of the portfolio&amp;#8217;s debt securities generally rises. Conversely, when interest rates increase, the value of the portfolio&amp;#8217;s debt securities generally declines. The magnitude of the increase or decline will often be greater for longer-term debt securities than shorter-term debt securities. It is also possible that the issuer of a debt 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;Pre-Payment Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Balanced Fund may experience losses when an issuer exercises its right to pay principal on an obligation held by the Balanced Fund (such as a mortgage-backed security) earlier than expected. This may happen during a period of declining interest rates. Under these circumstances, the Balanced Fund may be unable to recoup all of its initial investment and will suffer from having to invest in lower yielding securities. The loss of higher yielding securities and the reinvestment at lower interest rates can reduce the Balanced Fund&amp;#8217;s income, total return, and share price.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0146</rr:AverageAnnualReturnYear05>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member" unitRef="pure">0.34</rr:PortfolioTurnoverRate>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1035</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.0941</rr:AverageAnnualReturnYear10>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">Your investment in the Balanced Fund is not guaranteed; you may lose money by investing in the Balanced Fund.</rr:RiskLoseMoney>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001084_MemberC000002927_MemberClassAbcAndIshares_Member" unitRef="pure">0.0895</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1022</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1024</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.112</rr:AverageAnnualReturnYear10>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">The bar chart and table provide an indication of the risks of investing in the Balanced Fund by showing changes in the Balanced Fund&amp;#8217;s performance from year to year, and by showing how the Balanced 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 and other relevant indices.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0972</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0842</rr:AverageAnnualReturnYear10>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">As with all mutual funds, the Balanced Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Balanced Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">The Intermediate Bond Fund seeks to maximize total return, while maintaining a level of current income consistent with the maintenance of principal and liquidity.</rr:ObjectivePrimaryTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">This table describes the fees and expenses that you may pay if you buy and hold shares of the Intermediate Bond Fund. You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseNarrativeTextBlock>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_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_28Jan2013S000001080_MemberClassAbcAndIshares_Member">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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">You would pay the following expenses if you did not redeem your shares of the Intermediate Bond Fund:</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">The Intermediate Bond Fund pays transaction costs, 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 Intermediate Bond 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 Intermediate Bond Fund&amp;#8217;s performance. During the most recent fiscal year, the Intermediate Bond Fund&amp;#8217;s portfolio turnover rate was 15% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTETONWESTWOODINTERMEDIATEBONDFUNDClassABCI column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">The bar chart and table provide an indication of the risks of investing in the Intermediate Bond Fund by showing changes in the Intermediate Bond Fund&amp;#8217;s performance from year to year, and by showing how the Intermediate Bond 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 Intermediate Bond Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Intermediate Bond Fund will perform in the future. Updated information on the Intermediate Bond Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTETONWESTWOODBALANCEDFUNDClassABCIBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTETONWESTWOODBALANCEDFUNDClassABCI column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTETONWESTWOODBALANCEDFUNDClassABCI column period compact * ~&lt;/div&gt;

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</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTETONWESTWOODBALANCEDFUNDClassABCI column period compact * ~&lt;/div&gt;

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  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTETONWESTWOODINTERMEDIATEBONDFUNDClassABCI column period compact * ~&lt;/div&gt;

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  <rr:ExpenseExampleNoRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleNoRedemptionTransposedTETONWESTWOODBALANCEDFUNDClassABCI column period compact * ~&lt;/div&gt;

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  <rr:ExpenseExampleNoRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleNoRedemptionTransposedTETONWESTWOODINTERMEDIATEBONDFUNDClassABCI column period compact * ~&lt;/div&gt;

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  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTETONWESTWOODBALANCEDFUNDClassABCI column period compact * ~&lt;/div&gt;

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  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAbcAndIshares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAbcAndIshares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
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  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member">2003-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">0.0948</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
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  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002930_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Class C Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Class B Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001084_MemberC000002927_MemberClassAbcAndIshares_Member">TETON Westwood Mighty Mites Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001084_MemberC000002927_MemberClassAbcAndIshares_Member">TETON Westwood Mighty Mites Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002927_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">TETON Westwood Mighty Mites Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002911_MemberClassAbcAndIshares_Member" unitRef="pure">-0.1121</rr:BarChartLowestQuarterlyReturn>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Class I Shares (commenced operations on January 11, 2008)</rr:AverageAnnualReturnColumnName>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000002931_MemberClassAciShares_Member" unitRef="USD">571</rr:ExpenseExampleNoRedemptionYear01>
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  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001084_MemberC000002927_MemberClassAbcAndIshares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001084_MemberC000002927_MemberClassAbcAndIshares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000002929_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
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  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellTwentyHundredIndex_MemberClassAbcAndIshares_Member">Russell 2000 Index</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberRussellMicrocapIndex_MemberClassAbcAndIshares_Member">Russell Microcap&amp;#153; Index</rr:AverageAnnualReturnLabel>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;b&gt;TETON WESTWOOD INTERMEDIATE BOND FUND (formerly, "GAMCO Intermediate Bond Fund") (the "Intermediate Bond Fund") &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
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  <rr:AnnualReturn2005 id="Item_75" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.135</rr:AnnualReturn2005>
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  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.04</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
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  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOther>
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  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.005</rr:DistributionAndService12b1FeesOverAssets>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">-0.0163</rr:AverageAnnualReturnYear05>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_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_28Jan2013S000001083_MemberClassAbcAndIshares_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&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;your investment):</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberReturnBeforeTaxes_MemberClassAciShares_Member" unitRef="pure">0.0728</rr:AverageAnnualReturnYear10>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">This example is intended to help you compare the cost of investing in the Intermediate Bond 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 Intermediate Bond Fund for the time periods indicated and then redeem all of your shares at the end of those periods, except as noted. The example also assumes that your investment has a 5% return each year, and that the Intermediate Bond Fund's operating expenses remain the same (taking into account the expense limitation for one year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
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</rr:ShareholderFeesTableTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">Under normal market conditions the Intermediate Bond Fund invests at least 80% of its net assets (which includes, for purposes of this test, the amount of any borrowings for investment purposes) in bonds of various types and with various maturities. The Intermediate Bond Fund focuses on investment grade bonds of domestic corporations and governments. Investment grade debt securities are securities rated in the four highest ratings categories by a Nationally Recognized Statistical Rating Organization ("NRSRO").&lt;br/&gt;&lt;br/&gt;Although there are no restrictions on the maximum or minimum maturity of any individual security that the Intermediate Bond Fund may invest in, generally the Intermediate Bond Fund will have a dollar weighted average maturity of three to ten years. The Intermediate Bond Fund may also invest in other types of investment grade debt securities, including debentures, notes, convertible debt securities, municipal securities, mortgage-related securities, and certain collateralized and asset-backed securities. The Intermediate Bond Fund will seek to maintain an average rating of AA or better by Standard &amp;#38; Poor's Ratings Services, a division of McGraw-Hill Companies, ("Standard &amp;#38; Poor's"), or comparable quality for the securities in its portfolio.&lt;br/&gt;&lt;br/&gt;In selecting securities for the Intermediate Bond Fund, the Westwood Management Corporation, the Intermediate Bond Fund's sub-adviser (the "Sub-Adviser") Sub-Adviser focuses both on the fundamentals of particular issuers and yield curve positioning. The Sub-Adviser seeks to earn risk-adjusted returns superior to those of the Barclays Government/Credit Bond Index over time. The Sub-Adviser invests 80% to 100% of the Fund's assets in debt securities and the remainder in cash or cash equivalents. The Sub-Adviser has disciplines in place that serve as sell signals such as a change to a company's fundamentals that make the risk/reward profile unattractive, or a need to improve the overall risk/reward profile of the Fund.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;You May Want to Invest in the Fund if:&lt;/b&gt;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;you are seeking current income consistent with the maintenance of principal and liquidity&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;you are conservative in your investment approach&lt;/li&gt;&lt;li style="margin-left: 60px"&gt;you are seeking exposure to investment grade bonds as part of your overall investment strategy&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
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  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">The Intermediate Bond Fund's share price will fluctuate with changes in prevailing interest rates and the market value of the Intermediate Bond Fund's portfolio securities. Your investment in the Intermediate Bond Fund is not guaranteed; you may lose money by investing in the Intermediate Bond Fund. When you sell Intermediate Bond Fund shares, they may be worth more or less than what you paid for them.&lt;br/&gt;&lt;br/&gt;Investing in the Intermediate Bond Fund involves the following risks:&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 Intermediate Bond Fund holds, then the value of the Intermediate Bond Fund'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, Maturity Risk, and Credit Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;When interest rates decline, the value of the portfolio's debt securities generally rises. Conversely, when interest rates increase the value of the portfolio's debt securities generally declines. The magnitude of the increase or decline will often be greater for longer-term debt securities than shorter-term debt securities. It is also possible that the issuer of a debt 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;Pre-Payment Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Intermediate Bond Fund may experience losses when an issuer exercises its right to pay principal on an obligation held by the Intermediate Bond Fund (such as a mortgage-backed security) earlier than expected. This may happen during a period of declining interest rates. Under these circumstances, the Intermediate Bond Fund may be unable to recoup all of its initial investment and will suffer from having to invest in lower yielding securities. The loss of higher yielding securities and the reinvestment at lower interest rates can reduce the Intermediate Bond Fund's income, total return, and share price.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">During the periods shown in the bar chart, the highest return for a quarter was 5.04% (quarter ended December 31, 2008) and the lowest return for a quarter was (2.65)% (quarter ended June 30, 2004).</rr:BarChartClosingTextBlock>
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  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;b&gt;TETON WESTWOOD INTERMEDIATE BOND FUND (Total returns for Class A Shares for the Years Ended December 31)&lt;/b&gt;</rr:BarChartHeading>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTETONWESTWOODMIGHTYMITESFUNDClassABCIBarChart column period compact * ~&lt;/div&gt;

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  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;b&gt;TETON WESTWOOD EQUITY FUND&lt;br/&gt;(formerly, &amp;#8220;GAMCO Westwood Equity Fund&amp;#8221;) &lt;br/&gt;(the &amp;#8220;Equity Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;b&gt;Investment Objectives &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;b&gt;Average Annual Total Returns &lt;br/&gt;(for the periods ended December 31, 2012,&lt;br/&gt;with maximum sales charge, if applicable)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">The Equity Fund seeks to provide capital appreciation.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;b&gt;Fees and Expenses of the Equity Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">This table describes the fees and expenses that you may pay if you buy and hold shares of the Equity Fund. You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseNarrativeTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_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_28Jan2013S000001081_MemberClassAciShares_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&lt;br/&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;your investment):</rr:OperatingExpensesCaption>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberClassAbcAndIshares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTETONWESTWOODMIGHTYMITESFUNDClassABCI column period compact * ~&lt;/div&gt;

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  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">This example is intended to help you compare the cost of investing in the Equity 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 Fund for the time periods indicated and then redeem all of your shares at the end of those periods, except as noted. The example also assumes that your investment has a 5% return each year and that the Equity 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>
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</rr:ExpenseExampleNoRedemptionTableTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">The returns shown for Class I Shares prior to its inception date are those of the Class AAA Shares of the Intermediate Bond Fund which are offered in a separate Prospectus. All Classes of the Intermediate Bond Fund would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Classes do not have the same expenses.&lt;br/&gt;&lt;br/&gt;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. In some instances, the "Return After Taxes on Distributions and Sale of Fund Shares" may be greater than "Return Before Taxes" because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. Actual after-tax returns depend on the investor's tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or Individual Retirement Accounts, including "Roth'' IRAs and SEP IRAs (collectively, "IRAs").</rr:PerformanceTableNarrativeTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">The Equity 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 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 Fund&amp;#8217;s performance. During the most recent fiscal year, the Equity Fund&amp;#8217;s portfolio turnover rate was 41% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTETONWESTWOODSMALLCAPEQUITYFUNDClassACIBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">Under normal market conditions, the Equity Fund invests at least 80% of its net assets (which includes, for purposes of this test, the amount of any borrowings for investment purposes) in common stocks and securities which may be converted into common stocks. The Equity Fund invests in a portfolio of seasoned companies. Seasoned companies generally have market capitalizations of $1 billion or more and have been operating for at least three years.&lt;br/&gt;&lt;br/&gt;In selecting securities, Westwood Management Corporation, the Equity Fund&amp;#8217;s sub-adviser (the &amp;#8220;Sub-Adviser&amp;#8221;), maintains a list of securities of issuers which it believes have proven records and potential for above-average earnings growth. It considers purchasing a security on such list if the Sub-Adviser&amp;#8217;s forecast for growth rates and earnings exceeds Wall Street expectations. The Sub-Adviser closely monitors the issuers and will sell a stock if the Sub-Adviser expects limited future price appreciation, there is a fundamental change that negatively impacts their growth assumptions, and/or the price of the stocks declines 15% in the first forty-five days held. The Equity Fund&amp;#8217;s risk characteristics, such as beta (a measure of volatility), are generally expected to be less than those of the Standard &amp;amp; Poor&amp;#8217;s 500 Index (the &amp;#8220;S&amp;amp;P 500 Index&amp;#8221;), the Equity Fund&amp;#8217;s benchmark.&lt;br/&gt;&lt;br/&gt;The Equity Fund may also invest up to 25% of its total assets in foreign equity securities and in European Depositary Receipts (&amp;#8220;EDRs&amp;#8221;) or American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;). The Equity Fund may also invest in foreign debt securities.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;You May Want to Invest in the 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 growth of capital&lt;/li&gt;&lt;li style="margin-left: 60px"&gt; you seek a fund with a growth orientation as part of your overall investment plan&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">The Equity Fund&amp;#8217;s share price will fluctuate with changes in the market value of the Equity Fund&amp;#8217;s portfolio securities. Your investment in the Equity Fund is not guaranteed; you may lose money by investing in the Equity Fund. When you sell Equity 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 Fund involves the following risks: &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 Equity Fund holds, then the value of the Equity Fund&amp;#8217;s shares could go down.&lt;/li&gt;&lt;/ul&gt;&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 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;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_28Jan2013S000001081_MemberClassAciShares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">The bar chart and table provide an indication of the risks of investing in the Equity Fund by showing changes in the Equity Fund&amp;#8217;s performance from year to year, and by showing how the Equity 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 Equity Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Equity Fund will perform in the future. Updated information on the Equity Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.006</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="pure">0.006</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">0.006</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="pure">0.006</rr:ManagementFeesOverAssets>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">You would pay the following expenses if you did not redeem your shares of the Equity Fund:</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;b&gt;TETON WESTWOOD EQUITY FUND (Total returns for Class A Shares for the Years Ended December 31)&lt;/b&gt;</rr:BarChartHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">During the periods shown in the bar chart, the highest return for a quarter was 13.54% (quarter ended June 30, 2003) and the lowest return for a quarter was (20.71)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;b&gt;Average Annual Total Returns&lt;br/&gt;(for the periods ended December 31, 2012,&lt;br/&gt;with maximum sales charge, if applicable)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">The returns shown for Class I Shares prior to its actual inception date are those of the Class AAA Shares of the Equity Fund which are offered in a separate prospectus. All Classes of the Equity Fund would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Classes do not have the same expenses.&lt;br/&gt;&lt;br/&gt;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. In some instances, the &amp;#8220;Return After Taxes on Distributions and Sale of Fund Shares&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. 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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.0035</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTETONWESTWOODINCOMEFUNDClassACIBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">0.0048</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="pure">0.0048</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="pure">0.0048</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.0048</rr:OtherExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_76" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="pure">0.0002</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_77" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">0.0002</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_78" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="pure">0.0002</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_79" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.0002</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">0.021</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="pure">0.011</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="pure">0.021</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.0145</rr:ExpensesOverAssets>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member" unitRef="pure">0.41</rr:PortfolioTurnoverRate>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">Your investment in the Equity Fund is not guaranteed; you may lose money by investing in the Equity Fund.</rr:RiskLoseMoney>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_80" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="pure">-0.0033</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_81" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">-0.0033</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_82" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="pure">-0.0033</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">The bar chart and table provide an indication of the risks of investing in the Equity Fund by showing changes in the Equity Fund's performance from year to year, and by showing how the Equity Fund'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:FeeWaiverOrReimbursementOverAssets id="Item_83" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">-0.0033</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">As with all mutual funds, the Equity Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Equity Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:NetExpensesOverAssets id="Item_84" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.0112</rr:NetExpensesOverAssets>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:NetExpensesOverAssets id="Item_85" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="pure">0.0177</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_86" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="pure">0.0177</rr:NetExpensesOverAssets>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTETONWESTWOODINCOMEFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:NetExpensesOverAssets id="Item_87" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="pure">0.0077</rr:NetExpensesOverAssets>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">In some instances, the &amp;#8220;Return After Taxes on Distributions and Sale of Fund Shares&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartReturnsForClassNotOfferedInProspectus contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">The returns shown for Class I Shares prior to its actual inception date are those of the Class AAA Shares of the Equity Fund which are offered in a separate prospectus.</rr:BarChartReturnsForClassNotOfferedInProspectus>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">0.1354</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member">2003-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member" unitRef="pure">-0.2071</rr:BarChartLowestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberClassAciShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">You would pay the following expenses if you did not redeem your shares of the Balanced Fund:</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberReturnBeforeTaxes_MemberClassAciShares_Member">TETON Westwood Equity Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001081_MemberC000002917_MemberClassAciShares_Member">TETON Westwood Equity Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001081_MemberC000002917_MemberClassAciShares_Member">TETON Westwood Equity Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="USD">510</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="USD">680</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="USD">280</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="USD">79</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="USD">926</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="USD">809</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="USD">626</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="USD">317</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="USD">1099</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="USD">1299</rr:ExpenseExampleYear05>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002917_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001081_MemberC000002917_MemberClassAciShares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001081_MemberC000002917_MemberClassAciShares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="USD">1130</rr:ExpenseExampleYear05>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAciShares_Member">S&amp;amp;P 500 Index</rr:AverageAnnualReturnLabel>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="USD">574</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="USD">1311</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="USD">2405</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="USD">2239</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="USD">2039</rr:ExpenseExampleYear10>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAciShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="USD">510</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="USD">180</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="USD">180</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="USD">79</rr:ExpenseExampleNoRedemptionYear01>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000002916_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Class C Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberReturnBeforeTaxes_MemberClassAciShares_Member">Class I Shares (commenced operations on January 11, 2008)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberSandPfiveHundredIndex_MemberClassAciShares_Member">Index</rr:AverageAnnualReturnColumnName>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="USD">809</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="USD">626</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="USD">626</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="USD">317</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="USD">1130</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="USD">1099</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="USD">1099</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="USD">574</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="USD">2039</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_Member" unitRef="USD">2239</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_Member" unitRef="USD">2405</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_Member" unitRef="USD">1311</rr:ExpenseExampleNoRedemptionYear10>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberC000061064_MemberReturnBeforeTaxes_MemberClassAciShares_Member">2008-01-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">-0.0177</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">-0.0223</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">-0.011</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">-0.0326</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0274</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0482</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0074</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.0263</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0346</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.0249</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0329</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0366</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0467</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0606</rr:AverageAnnualReturnYear05>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">The Income Fund seeks to provide a high level of current income as well as long-term capital appreciation.</rr:ObjectivePrimaryTextBlock>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0294</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.0214</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.0218</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0318</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0297</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0383</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member" unitRef="pure">0.0525</rr:AverageAnnualReturnYear10>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001084_MemberC000061067_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">2008-01-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAciShares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAciShares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberC000061065_MemberReturnBeforeTaxes_MemberClassAciShares_Member">2008-01-11</rr:AverageAnnualReturnInceptionDate>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTETONWESTWOODEQUITYFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTETONWESTWOODEQUITYFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTETONWESTWOODEQUITYFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ExpenseExampleNoRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleNoRedemptionTransposedTETONWESTWOODEQUITYFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleNoRedemptionTableTextBlock>
  <rr:AnnualReturn2003 id="Item_88" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.012</rr:AnnualReturn2003>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">The returns shown for Class I Shares prior to its actual inception date are those of the Class AAA Shares of the Income Fund which are offered in a separate prospectus. All Classes of the Income Fund would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Classes do not have the same expenses.&lt;br/&gt;&lt;br/&gt;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. In some instances, the &amp;#8220;Return After Taxes on Distributions&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. 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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:AnnualReturn2004 id="Item_89" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.029</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 id="Item_90" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.017</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 id="Item_91" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.031</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 id="Item_92" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.056</rr:AnnualReturn2007>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTETONWESTWOODEQUITYFUNDClassACIBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2008 id="Item_93" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.059</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_94" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.037</rr:AnnualReturn2009>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:AnnualReturn2010 id="Item_95" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.047</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 id="Item_96" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.05</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 id="Item_97" decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.024</rr:AnnualReturn2012>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTETONWESTWOODEQUITYFUNDClassACI column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseBreakpointDiscounts>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">This example is intended to help you compare the cost of investing in the Balanced 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 Balanced Fund for the time periods indicated and then redeem all of your shares at the end of those periods, except as noted. The example also assumes that your investment has a 5% return each year and that the Balanced 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:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member" unitRef="USD">100000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">The returns shown for Class I Shares prior to its actual inception date are those of the Class AAA Shares of the Balanced Fund which are offered in a separate Prospectus. All Classes of the Balanced Fund would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Classes do not have the same expenses.&lt;br/&gt;&lt;br/&gt;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. In some instances, the &amp;#8220;Return After Taxes on Distributions&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. 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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseBreakpointDiscounts>
  <rr:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member" unitRef="USD">100000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">In some instances, the &amp;#8220;Return After Taxes on Distributions&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:BarChartReturnsForClassNotOfferedInProspectus contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">The returns shown for Class I Shares prior to its actual inception date are those of the Class AAA Shares of the Income Fund which are offered in a separate prospectus.</rr:BarChartReturnsForClassNotOfferedInProspectus>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_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:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">In some instances, the &amp;#8220;Return After Taxes on Distributions&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAciShares_Member">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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartReturnsForClassNotOfferedInProspectus contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">The returns shown for Class I Shares prior to its actual inception date are those of the Class AAA Shares of the Balanced Fund which are offered in a separate Prospectus.</rr:BarChartReturnsForClassNotOfferedInProspectus>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAbcAndIshares_Member">Sales loads are not reflected in the above chart. If sales loads were reflected, the Balanced Fund&amp;#8217;s returns would be less than those shown.</rr:BarChartDoesNotReflectSalesLoads>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member" unitRef="pure">0.15</rr:PortfolioTurnoverRate>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">Your investment in the Intermediate Bond Fund is not guaranteed; you may lose money by investing in the Intermediate Bond Fund.</rr:RiskLoseMoney>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">The bar chart and table provide an indication of the risks of investing in the Intermediate Bond Fund by showing changes in the Intermediate Bond Fund's performance from year to year, and by showing how the Intermediate Bond Fund'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:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">As with all mutual funds, the Intermediate Bond Fund's past performance (before and after taxes) does not predict how the Intermediate Bond Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_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:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member">2008-12-31</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">0.0504</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member">2004-06-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_Member" unitRef="pure">-0.0265</rr:BarChartLowestQuarterlyReturn>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">TETON Westwood Intermediate Bond Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001083_MemberC000002923_MemberClassAbcAndIshares_Member">TETON Westwood Intermediate Bond Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001083_MemberC000002923_MemberClassAbcAndIshares_Member">TETON Westwood Intermediate Bond Fund Class A Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001083_MemberC000002923_MemberClassAbcAndIshares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002923_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001083_MemberC000002923_MemberClassAbcAndIshares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Class B Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Class I Shares (commenced operations on January 11, 2008)</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Class C Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002926_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000002925_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member">Barclays Government/Credit Bond Index</rr:AverageAnnualReturnLabel>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberBarclaysGovernmentCreditBondIndex_MemberClassAbcAndIshares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberLipperEquityIncomeFundsAverage_MemberClassAaaShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberC000061066_MemberClassAbcAndIshares_MemberReturnBeforeTaxes_Member">2008-01-11</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseBreakpointDiscounts>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">January 31, 2014</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member" unitRef="USD">100000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:ObjectiveHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;Investment Objective &lt;/b&gt;</rr:ObjectiveHeading>
  <rr:RiskReturnHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD BALANCED FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(formerly, &amp;#8220;GAMCO Westwood Balanced Fund&amp;#8221;) &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(the &amp;#8220;Balanced Fund&amp;#8221;) &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">The Balanced Fund seeks to provide capital appreciation and current income resulting in a high total investment return consistent with prudent investment risk and a balanced investment approach.</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;Fees and Expenses of the Balanced Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">This table describes the fees and expenses that you may pay if you buy and hold Class AAA Shares of the Balanced Fund.&lt;br /&gt;&lt;br /&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;Shareholder Fees &lt;/b&gt;(fees paid directly from your investment):</rr:ShareholderFeesCaption>
  <rr:ExpenseExampleHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;Expense Example &lt;/b&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">This example is intended to help you compare the cost of investing in Class AAA Shares of the Balanced 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 Balanced Fund for the time 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 Balanced 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_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;Portfolio Turnover &lt;/b&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">The Balanced 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 Balanced 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 Balanced Fund&amp;#8217;s performance. During the most recent fiscal year, the Balanced Fund&amp;#8217;s portfolio turnover rate was 34% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;Principal Investment Strategies &lt;/b&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">The Balanced Fund invests in a combination of equity and debt securities. The Balanced Fund is primarily equity-oriented, and uses a top-down approach in seeking to provide equity-like returns but with lower volatility than a fully invested equity portfolio. Westwood Management Corporation, the Balanced Fund&amp;#8217;s sub-adviser (the &amp;#8220;Sub-Adviser&amp;#8221;) will typically invest 30% to 70% of the Balanced Fund&amp;#8217;s assets in equity securities and 70% to 30% in debt securities, and the balance of the Balanced Fund&amp;#8217;s assets in cash or cash equivalents. The actual mix of assets will vary depending on the Sub-Adviser&amp;#8217;s analysis of market and economic conditions. &lt;br /&gt;&lt;br /&gt;The Balanced Fund invests in stocks of seasoned companies. Seasoned companies generally have market capitalizations of $1 billion or more and have been operating for at least three years. The Sub-Adviser chooses stocks of seasoned companies with proven records and above-average earnings growth potential. The Sub-Adviser has disciplines in place that serve as sell signals such as a security reaching a predetermined price target, a change to a company&amp;#8217;s fundamentals that make the risk/reward profile unattractive, or a need to improve the overall risk/reward profile of the Fund. &lt;br /&gt;&lt;br /&gt;The debt securities held by the Balanced Fund are investment grade securities of corporate and government issuers and commercial paper and mortgage- and asset-backed securities. Investment grade debt securities are securities rated in one of the four highest ratings categories by a Nationally Recognized Statistical Rating Organization (&amp;#8220;NRSRO&amp;#8221;). There are no restrictions on the maximum or minimum maturity of any individual security that the Balanced Fund may invest in. &lt;br /&gt;&lt;br /&gt;The Balanced Fund may also invest up to 25% of its total assets in foreign equity securities and in European Depositary Receipts (&amp;#8220;EDRs&amp;#8221;) or American Depositary Receipts (&amp;#8220;ADRs&amp;#8221;). The Balanced Fund may also invest in foreign debt securities.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;You May Want to Invest in the 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 both growth of capital and current income&lt;/li&gt;&lt;li style="margin-left: 60px"&gt; you want participation in market growth with some emphasis on preserving assets in "down" markets&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;Principal Risks &lt;/b&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;Performance &lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the Balanced Fund by showing changes in the Balanced Fund&amp;#8217;s performance from year to year, and by showing how the Balanced 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 and other relevant indices. As with all mutual funds, the Balanced Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Balanced Fund will perform in the future. Updated information on the Balanced Fund&amp;#8217;s results can be obtained by visiting www.gabelli.com.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;TETON WESTWOOD BALANCED FUND &lt;/b&gt;&lt;br/&gt;&lt;b&gt;(Total returns for Class AAA Shares for the Years Ended December 31) &lt;/b&gt;</rr:BarChartHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">During the periods shown in the bar chart, the highest return for a quarter was 9.64% (quarter ended June 30, 2003) and the lowest return for a quarter was (11.20)% (quarter ended December 31, 2008).</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;Average Annual Total Returns &lt;br/&gt;(for the periods ended December 31, 2012)&lt;/b&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_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. In some instances, the &amp;#8220;Return After Taxes on Distributions&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. 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 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_28Jan2013S000001080_MemberClassAaaShares_Member" unitRef="pure">0.34</rr:PortfolioTurnoverRate>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">The bar chart and table provide an indication of the risks of investing in the Balanced Fund by showing changes in the Balanced Fund&amp;#8217;s performance from year to year, and by showing how the Balanced 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 and other relevant indices.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">Actual after-tax returns depend on the investor's tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or Individual Retirement Accounts, including "Roth'' IRAs and SEP IRAs (collectively, "IRAs").</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">As with all mutual funds, the Balanced Fund&amp;#8217;s past performance (before and after taxes) does not predict how the Balanced Fund will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">www.gabelli.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_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:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">In some instances, the &amp;#8220;Return After Taxes on Distributions&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">In some instances, the &amp;#8220;Return After Taxes on Distributions and Sale of Fund Shares&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_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 Individual Retirement Accounts, including &amp;#8220;Roth&amp;#8221; IRAs and SEP IRAs (collectively, &amp;#8220;IRAs&amp;#8221;).</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:RiskLoseMoney contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">Your investment in the Equity Fund is not guaranteed; you may lose money by investing in the Equity Fund.</rr:RiskLoseMoney>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund&amp;#8217;s Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled &amp;#8220;Classes of Shares&amp;#8221; of the Fund&amp;#8217;s statutory Prospectus and in the section entitled &amp;#8220;Purchase and Redemption of Shares&amp;#8221; of the Fund&amp;#8217;s Statement of Additional Information (&amp;#8220;SAI&amp;#8221;).</rr:ExpenseBreakpointDiscounts>
  <rr:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member" unitRef="USD">100000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">January 31, 2014</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">The Balanced Fund is subject to the risk that its allocations between equity and debt securities may underperform other allocations. The Balanced Fund&amp;#8217;s share price will fluctuate with changes in the market value of the Balanced Fund&amp;#8217;s portfolio securities. Your investment in the Balanced Fund is not guaranteed; you may lose money by investing in the Balanced Fund. When you sell Balanced Fund shares, they may be worth more or less than what you paid for them. &lt;br /&gt;&lt;br /&gt;Investing in the Balanced Fund involves the following risks:&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 Balanced Fund holds, then the value of the Balanced 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; 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 Balanced 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; 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;&lt;ul type="square"&gt;&lt;li style="margin-left: 60px"&gt;&lt;b&gt;Interest Rate Risk, Maturity Risk, and Credit Risk.&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;When interest rates decline, the value of the portfolio&amp;#8217;s debt securities generally increases. Conversely, when interest rates rise, the value of the portfolio&amp;#8217;s debt securities generally declines. The magnitude of the increase or decline will often be greater for longer-term debt securities than shorter-term debt securities. It is also possible that the issuer of a debt 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;Pre-Payment Risk. &lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Balanced Fund may experience losses when an issuer exercises its right to pay principal on an obligation held by the Balanced Fund (such as a mortgage-backed security) earlier than expected. This may happen during a period of declining interest rates. Under these circumstances, the Balanced Fund may be unable to recoup all of its initial investment and will suffer from having to invest in lower yielding securities. The loss of higher yielding securities and the reinvestment at lower interest rates can reduce the Balanced Fund&amp;#8217;s income, total return, and share price.&lt;/li&gt;&lt;/ul&gt;</rr:RiskNarrativeTextBlock>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_29Jan2012_28Jan2013S000001082_MemberClassAaaShares_Member">In some instances, the &amp;#8220;Return After Taxes on Distributions&amp;#8221; may be greater than &amp;#8220;Return Before Taxes&amp;#8221; because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0</rr:MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">Sales loads are not reflected in the above chart. If sales loads were reflected, the Intermediate Bond Fund&amp;#8217;s returns would be less than those shown.</rr:BarChartDoesNotReflectSalesLoads>
  <rr:ExchangeFee decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="USD">0</rr:ExchangeFee>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="USD">129</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="USD">403</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="USD">697</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="USD">1534</rr:ExpenseExampleYear10>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">You may qualify for sales charge discounts if you or your family invest, or agree to invest in the future, at least $100,000 in a Fund's Class A Shares. More information about these and other discounts is available from your financial professional and in the section entitled "Classes of Shares" of the Fund's statutory Prospectus and in the section entitled "Purchase and Redemption of Shares" of the Fund's Statement of Additional Information ("SAI").</rr:ExpenseBreakpointDiscounts>
  <rr:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member" unitRef="USD">100000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.143</rr:AnnualReturn2003>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.088</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.093</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.124</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.103</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">-0.193</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.098</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.091</rr:AnnualReturn2010>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.012</rr:AnnualReturn2011>
  <rr:AnnualReturn2012 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.107</rr:AnnualReturn2012>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.1071</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.1078</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.076</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member" unitRef="pure">0.0482</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.16</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member" unitRef="pure">0.1153</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.0161</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.0135</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.0135</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member" unitRef="pure">0.0606</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.0166</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member" unitRef="pure">0.0342</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member" unitRef="pure">0.0636</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member" unitRef="pure">0.071</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member" unitRef="pure">0.0525</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.0521</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.0537</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_MemberReturnBeforeTaxes_Member" unitRef="pure">0.062</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">TETON Westwood Balanced Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001080_MemberC000002912_MemberClassAaaShares_Member">TETON Westwood Balanced Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001080_MemberC000002912_MemberClassAaaShares_Member">TETON Westwood Balanced Fund Class AAA Shares</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member">Indexes</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_MemberReturnBeforeTaxes_Member">Return Before Taxes</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributions_MemberS000001080_MemberC000002912_MemberClassAaaShares_Member">Return After Taxes on Distributions</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013AfterTaxesOnDistributionsAndSales_MemberS000001080_MemberC000002912_MemberClassAaaShares_Member">Return After Taxes on Distributions and Sale of Fund Shares</rr:AverageAnnualReturnLabel>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:IndexNoDeductionForFeesExpensesTaxes contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member">(reflects no deduction for fees, expenses or taxes)</rr:IndexNoDeductionForFeesExpensesTaxes>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSixtyPercentSandPfiveHundredIndexAndFortyPercentBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member">60% S&amp;amp;P 500 Index and 40% Barclays Government/Credit Bond Index</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberSandPfiveHundredIndex_MemberClassAaaShares_Member">S&amp;amp;P 500 Index</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberBarclaysGovernmentCreditBondIndex_MemberClassAaaShares_Member">Barclays Government/Credit Bond Index</rr:AverageAnnualReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member">highest return</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member">2003-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.0964</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member">lowest return</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">-0.112</rr:BarChartLowestQuarterlyReturn>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleShareholderFeesTETONWESTWOODBALANCEDFUND column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleTransposedTETONWESTWOODBALANCEDFUND column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ExpenseExampleNoRedemptionTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleExpenseExampleNoRedemptionTransposedTETONWESTWOODBALANCEDFUND column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleNoRedemptionTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualTotalReturnsTETONWESTWOODBALANCEDFUNDBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAverageAnnualTotalReturnsTransposedTETONWESTWOODBALANCEDFUND column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">&lt;b&gt;Fees and Expenses of the Intermediate Bond Fund: &lt;/b&gt;</rr:ExpenseHeading>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.0027</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberC000002912_MemberClassAaaShares_Member" unitRef="pure">0.0127</rr:ExpensesOverAssets>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;div style="display:none"&gt;~ http://www.gabelli.com/role/ScheduleAnnualFundOperatingExpensesTETONWESTWOODBALANCEDFUND column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_29Jan2012_28Jan2013S000001080_MemberClassAaaShares_Member">&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;(expenses that you pay each year as a&lt;br/&gt;percentage of the value of your investment):</rr:OperatingExpensesCaption>
  <rr:ObjectiveSecondaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAaaShares_Member">The Equity Fund&amp;#8217;s secondary goal is to produce current income.</rr:ObjectiveSecondaryTextBlock>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">Sales loads are not reflected in the above chart. If sales loads were reflected, the SmallCap Equity Fund&amp;#8217;s returns would be less than those shown.</rr:BarChartDoesNotReflectSalesLoads>
  <rr:BarChartReturnsForClassNotOfferedInProspectus contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberClassAciShares_Member">The returns shown for Class I Shares prior to its actual inception date are those of the Class AAA Shares of the SmallCap Equity Fund which are offered in a separate prospectus.</rr:BarChartReturnsForClassNotOfferedInProspectus>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_29Jan2012_28Jan2013S000001085_MemberC000061068_MemberReturnBeforeTaxes_MemberClassAciShares_Member">2008-01-11</rr:AverageAnnualReturnInceptionDate>
  <rr:ObjectiveSecondaryTextBlock contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">The Equity Fund&amp;#8217;s secondary goal is to produce current income.</rr:ObjectiveSecondaryTextBlock>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_Member">Sales loads are not reflected in the above chart. If sales loads were reflected, the Equity Fund&amp;#8217;s returns would be less than those shown.</rr:BarChartDoesNotReflectSalesLoads>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_29Jan2012_28Jan2013S000001081_MemberClassAciShares_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:BarChartReturnsForClassNotOfferedInProspectus contextRef="Duration_29Jan2012_28Jan2013S000001083_MemberClassAbcAndIshares_Member">The returns shown for Class I Shares prior to its inception date are those of the Class AAA Shares of the Intermediate Bond Fund which are offered in a separate Prospectus.</rr:BarChartReturnsForClassNotOfferedInProspectus>
  <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="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">Teton Advisors, Inc. (the "Adviser") has contractually agreed to waive its investment advisory fees and/or to reimburse expenses of the Income Fund to the extent necessary to maintain the Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement (excluding brokerage, acquired fund fees and expenses, interest, taxes, and extraordinary expenses) at no more than 2.00%. The fee waiver and expense reimbursement arrangement will continue until at least January 31, 2014 and may not be terminated by the Fund or the Adviser before such time. Thereafter, this arrangement may only be terminated or amended to increase the expense cap as of January 31 of each calendar year, provided that in the case of a termination by the Adviser, the Adviser will provide the Board with written notice of its intention to terminate the arrangement prior to the expiration of its then current term.</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_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_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_7" xlink:label="FeeWaiverOrReimbursementOverAssets_2" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets_2">Teton Advisors, Inc. (the "Adviser") has contractually agreed to waive its investment advisory fees and/or to reimburse expenses of the SmallCap Equity Fund to the extent necessary to maintain the Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement (excluding brokerage, acquired fund fees and expenses, interest, taxes, and extraordinary expenses) at no more than 1.50%. The fee waiver and expense reimbursement arrangement will continue until at least January 31, 2014, and may not be terminated by the Fund or the Adviser before such time. Thereafter, this arrangement may only be terminated or amended to increase the expense cap as of January 31 of each calendar year, provided that in the case of a termination by the Adviser, the Adviser will provide the Board with written notice of its intention to terminate the arrangement prior to the expiration of its then current term.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="FeeWaiverOrReimbursementOverAssets_2" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_2" />
    <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_FeeWaiverOrReimbursementOverAssets_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_4" xlink:label="AcquiredFundFeesAndExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AcquiredFundFeesAndExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AcquiredFundFeesAndExpensesOverAssets">Please note that Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement in the table above does not correlate to the ratio of Operating Expenses Net of Waivers/Reimbursements to Average Net Assets found in the "Financial Highlights" section of this prospectus since the latter reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="AcquiredFundFeesAndExpensesOverAssets" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" />
    <link:loc xlink:type="locator" xlink:href="#Item_6" xlink:label="Item_6_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_6_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_76" xlink:label="Item_76_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_76_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_77" xlink:label="Item_77_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_77_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_78" xlink:label="Item_78_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_78_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_79" xlink:label="Item_79_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_79_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_84" xlink:label="Item_84_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_84_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_85" xlink:label="Item_85_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_85_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_86" xlink:label="Item_86_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_86_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_87" xlink:label="Item_87_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_87_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_5" xlink:label="FeeWaiverOrReimbursementOverAssets_3" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets_3" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets_3">Teton Advisors, Inc. (the "Adviser") has contractually agreed to waive its investment advisory fees and/or to reimburse expenses of the Intermediate Bond Fund to the extent necessary to maintain the Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement (excluding brokerage, acquired fund fees and expenses, interest, taxes, and extraordinary expenses) at no more than 1.00%. The fee waiver and expense reimbursement arrangement will continue until at least January 31, 2014, and may not be terminated by the Fund or the Adviser before such time. Thereafter, this arrangement may only be terminated or amended to increase the expense cap as of January 31 of each calendar year, provided that in the case of a termination by the Adviser, the Adviser will provide the Board with written notice of its intention to terminate the arrangement prior to the expiration of its then current term.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="FeeWaiverOrReimbursementOverAssets_3" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_3" />
    <link:loc xlink:type="locator" xlink:href="#Item_9" xlink:label="AcquiredFundFeesAndExpensesOverAssets_2" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AcquiredFundFeesAndExpensesOverAssets_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AcquiredFundFeesAndExpensesOverAssets_2">Please note that Total Annual Operating Expenses in the table above does not correlate to the ratio of Operating Expenses Before Waivers/Reimbursements/Reductions to Average Net Assets found in the "Financial Highlights" section of this prospectus since the latter reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="AcquiredFundFeesAndExpensesOverAssets_2" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets_2" />
    <link:loc xlink:type="locator" xlink:href="#Item_10" xlink:label="FeeWaiverOrReimbursementOverAssets_4" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets_4" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets_4">Teton Advisors, Inc. (the "Adviser") has contractually agreed to waive its investment advisory fees and/or to reimburse expenses of the Income Fund to the extent necessary to maintain the Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement (excluding brokerage, acquired fund fees and expenses, interest, taxes, and extraordinary expenses) at no more than 2.25% for Class A Shares, 2.75% for Class C Shares, and 1.75% for Class I Shares. The fee waiver and expense reimbursement arrangement will continue until at least January 31, 2014 and may not be terminated by the Fund or the Adviser before such time. Thereafter, this arrangement may only be terminated or amended to increase the expense cap as of January 31 of each calendar year, provided that in the case of a termination by the Adviser, the Adviser will provide the Board with written notice of its intention to terminate the arrangement prior to the expiration of its then current term.  </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="FeeWaiverOrReimbursementOverAssets_4" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_4" />
    <link:loc xlink:type="locator" xlink:href="#Item_11" xlink:label="Item_11_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_11_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_12" xlink:label="Item_12_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_12_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_13" xlink:label="Item_13_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_13_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_14" xlink:label="Item_14_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_14_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_15" xlink:label="Item_15_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_15_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_16" xlink:label="FeeWaiverOrReimbursementOverAssets_5" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets_5" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets_5">Teton Advisors, Inc. (the "Adviser") has contractually agreed to waive its investment advisory fees and/or to reimburse expenses of the SmallCap Equity Fund to the extent necessary to maintain the Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement (excluding brokerage, acquired fund fees and expenses, interest, taxes, and extraordinary expenses) at no more than 1.75% for Class A Shares, 2.25% for Class C Shares, and 1.25% for Class I Shares. The fee waiver and expense reimbursement arrangement will continue until at least January 31, 2014, and may not be terminated by the Fund or the Adviser before such time. Thereafter, this arrangement may only be terminated or amended to increase the expense cap as of January 31 of each calendar year, provided that in the case of a termination by the Adviser, the Adviser will provide the Board with written notice of its intention to terminate the arrangement prior to the expiration of its then current term.  </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="FeeWaiverOrReimbursementOverAssets_5" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_5" />
    <link:loc xlink:type="locator" xlink:href="#Item_17" xlink:label="Item_17_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_17_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_5" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_18" xlink:label="Item_18_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_18_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_5" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_19" xlink:label="Item_19_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_19_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_5" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_20" xlink:label="Item_20_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_20_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_5" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_21" xlink:label="Item_21_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_21_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_5" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_22" xlink:label="AnnualReturn2003" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AnnualReturn2003" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AnnualReturn2003">Sales loads are not reflected in the above chart. If sales loads were reflected, the Income Fund's returns would be less than those shown. </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="AnnualReturn2003" xlink:to="footnote_AnnualReturn2003" />
    <link:loc xlink:type="locator" xlink:href="#Item_23" xlink:label="Item_23_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_23_lbl" xlink:to="footnote_AnnualReturn2003" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_24" xlink:label="Item_24_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_24_lbl" xlink:to="footnote_AnnualReturn2003" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_25" xlink:label="Item_25_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_25_lbl" xlink:to="footnote_AnnualReturn2003" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_26" xlink:label="Item_26_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_26_lbl" xlink:to="footnote_AnnualReturn2003" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_27" xlink:label="Item_27_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_27_lbl" xlink:to="footnote_AnnualReturn2003" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_28" xlink:label="Item_28_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_28_lbl" xlink:to="footnote_AnnualReturn2003" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_29" xlink:label="Item_29_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_29_lbl" xlink:to="footnote_AnnualReturn2003" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_30" xlink:label="Item_30_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_30_lbl" xlink:to="footnote_AnnualReturn2003" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_31" xlink:label="Item_31_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_31_lbl" xlink:to="footnote_AnnualReturn2003" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_32" xlink:label="AnnualReturn2003_2" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AnnualReturn2003_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AnnualReturn2003_2">Sales loads are not reflected in the above chart. If sales loads were reflected, the SmallCap Equity Fund's returns would be less than those shown. </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="AnnualReturn2003_2" xlink:to="footnote_AnnualReturn2003_2" />
    <link:loc xlink:type="locator" xlink:href="#Item_33" xlink:label="Item_33_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_33_lbl" xlink:to="footnote_AnnualReturn2003_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_34" xlink:label="Item_34_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_34_lbl" xlink:to="footnote_AnnualReturn2003_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_35" xlink:label="Item_35_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_35_lbl" xlink:to="footnote_AnnualReturn2003_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_36" xlink:label="Item_36_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_36_lbl" xlink:to="footnote_AnnualReturn2003_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_37" xlink:label="Item_37_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_37_lbl" xlink:to="footnote_AnnualReturn2003_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_38" xlink:label="Item_38_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_38_lbl" xlink:to="footnote_AnnualReturn2003_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_39" xlink:label="Item_39_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_39_lbl" xlink:to="footnote_AnnualReturn2003_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_40" xlink:label="Item_40_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_40_lbl" xlink:to="footnote_AnnualReturn2003_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_41" xlink:label="Item_41_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_41_lbl" xlink:to="footnote_AnnualReturn2003_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_52" xlink:label="AcquiredFundFeesAndExpensesOverAssets_3" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AcquiredFundFeesAndExpensesOverAssets_3" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AcquiredFundFeesAndExpensesOverAssets_3">                 Please note that Total Annual Operating Expenses in the table above does not correlate to the ratio of Operating Expenses Before Waivers/Reimbursements/Reductions to Average Net Assets found in the "Financial Highlights" section of this prospectus since the latter reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="AcquiredFundFeesAndExpensesOverAssets_3" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets_3" />
    <link:loc xlink:type="locator" xlink:href="#Item_53" xlink:label="Item_53_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_53_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_54" xlink:label="Item_54_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_54_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_55" xlink:label="Item_55_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_55_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_42" xlink:label="AnnualReturn2003_3" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AnnualReturn2003_3" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AnnualReturn2003_3">                              Sales loads are not reflected in the above chart. If sales loads were reflected, the Balanced Fund's returns would be less than those shown.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="AnnualReturn2003_3" xlink:to="footnote_AnnualReturn2003_3" />
    <link:loc xlink:type="locator" xlink:href="#Item_43" xlink:label="Item_43_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_43_lbl" xlink:to="footnote_AnnualReturn2003_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_44" xlink:label="Item_44_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_44_lbl" xlink:to="footnote_AnnualReturn2003_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_45" xlink:label="Item_45_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_45_lbl" xlink:to="footnote_AnnualReturn2003_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_46" xlink:label="Item_46_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_46_lbl" xlink:to="footnote_AnnualReturn2003_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_47" xlink:label="Item_47_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_47_lbl" xlink:to="footnote_AnnualReturn2003_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_48" xlink:label="Item_48_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_48_lbl" xlink:to="footnote_AnnualReturn2003_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_49" xlink:label="Item_49_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_49_lbl" xlink:to="footnote_AnnualReturn2003_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_50" xlink:label="Item_50_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_50_lbl" xlink:to="footnote_AnnualReturn2003_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_51" xlink:label="Item_51_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_51_lbl" xlink:to="footnote_AnnualReturn2003_3" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_65" xlink:label="AnnualReturn2003_4" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AnnualReturn2003_4" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AnnualReturn2003_4">Salesloads are not reflected in the above chart. If sales loads were reflected, the Mighty Mites Fund's returns would be less than those shown. </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="AnnualReturn2003_4" xlink:to="footnote_AnnualReturn2003_4" />
    <link:loc xlink:type="locator" xlink:href="#Item_66" xlink:label="Item_66_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_66_lbl" xlink:to="footnote_AnnualReturn2003_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_67" xlink:label="Item_67_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_68" xlink:label="Item_68_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_68_lbl" xlink:to="footnote_AnnualReturn2003_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_69" xlink:label="Item_69_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_69_lbl" xlink:to="footnote_AnnualReturn2003_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_70" xlink:label="Item_70_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_70_lbl" xlink:to="footnote_AnnualReturn2003_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_71" xlink:label="Item_71_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_71_lbl" xlink:to="footnote_AnnualReturn2003_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_72" xlink:label="Item_72_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_72_lbl" xlink:to="footnote_AnnualReturn2003_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_73" xlink:label="Item_73_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_73_lbl" xlink:to="footnote_AnnualReturn2003_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_74" xlink:label="Item_74_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_74_lbl" xlink:to="footnote_AnnualReturn2003_4" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_80" xlink:label="FeeWaiverOrReimbursementOverAssets_6" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets_6" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets_6">Teton Advisors, Inc. (the "Adviser") has contractually agreed to waive its investment advisory fees and/or to reimburse expenses of the Intermediate Bond Fund to the extent necessary to maintain the Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement (excluding brokerage, acquired fund fees and expenses, interest, taxes, and extraordinary expenses) at no more than 1.10% for Class A Shares, 1.75% for Class B Shares, 1.75% for Class C Shares, and 0.75% for Class I Shares. The fee waiver and expense reimbursement arrangement will continue until at least January 31, 2014, and may not be terminated by the Fund or the Adviser before such time. Thereafter, this arrangement may only be terminated or amended to increase the expense cap as of January 31 of each calendar year, provided that in the case of a termination by the Adviser, the Adviser will provide the Board with written notice of its intention to terminate the arrangement prior to the expiration of its then current term.</link:footnote>
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    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_83_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_6" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_88" xlink:label="AnnualReturn2003_5" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AnnualReturn2003_5" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AnnualReturn2003_5">Sales loads are not reflected in the above chart. If sales loads were reflected, the Intermediate Bond Fund's returns would be less than those shown.</link:footnote>
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    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_97_lbl" xlink:to="footnote_AnnualReturn2003_5" use="optional" priority="0" order="1.0" />
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