v3.25.2
Shareholder Report, Average Annual Return (Details)
 6 Months Ended 12 Months Ended 60 Months Ended 120 Months Ended
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2025
C000048071        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name The Gabelli SRI Fund, Inc. - Class AAA      
C000048073        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name The Gabelli SRI Fund, Inc. - Class C      
Average Annual Return, Percent 7.00% 12.00% 10.81% 6.27%
C000048074        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name The Gabelli SRI Fund, Inc. - Class I      
C000048072        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name The Gabelli SRI Fund, Inc. - Class A      
Average Annual Return, Percent 1.80% 6.52% 9.50% 5.99%
Without Sales Load [Member] | C000048071        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.99% 13.01% 10.81% 6.62%
Without Sales Load [Member] | C000048073        
Average Annual Return [Line Items]        
Average Annual Return, Percent 8.00% 13.00% 10.81% 6.27%
Without Sales Load [Member] | C000048074        
Average Annual Return [Line Items]        
Average Annual Return, Percent 8.02% 12.97% 10.80% 6.74%
Without Sales Load [Member] | C000048072        
Average Annual Return [Line Items]        
Average Annual Return, Percent 8.01% 13.02% 10.80% 6.62%
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 6.20% 15.16% 16.64% 13.65%
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 6.20% 15.16% 16.64% 13.65%
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 6.20% 15.16% 16.64% 13.65%
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 6.20% 15.16% 16.64% 13.65%
MSCI ACWI SRI Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.72% 14.55% 13.59% 11.20%
MSCI ACWI SRI Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.72% 14.55% 13.59% 11.20%
MSCI ACWI SRI Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.72% 14.55% 13.59% 11.20%
MSCI ACWI SRI Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.72% 14.55% 13.59% 11.20%