v3.25.2
Shareholder Report, Average Annual Return (Details)
 9 Months Ended 12 Months Ended 60 Months Ended 120 Months Ended
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2025
Without Sales Load [Member] | C000012182        
Average Annual Return [Line Items]        
Average Annual Return, Percent   25.88% 16.59% 8.88%
Without Sales Load [Member] | C000012186        
Average Annual Return [Line Items]        
Average Annual Return, Percent   19.07% 18.23% 7.24%
Without Sales Load [Member] | C000012187        
Average Annual Return [Line Items]        
Average Annual Return, Percent   13.69% 10.73% 5.31%
Without Sales Load [Member] | C000012190        
Average Annual Return [Line Items]        
Average Annual Return, Percent   0.19% 20.00% 8.99%
Without Sales Load [Member] | C000103073        
Average Annual Return [Line Items]        
Average Annual Return, Percent   1.15% 18.02% 7.43%
Without Sales Load [Member] | C000254224        
Average Annual Return [Line Items]        
Average Annual Return, Percent 6.41%      
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent   15.16% 16.64% 13.65%
Russell 3000 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent   15.30% 15.96% 12.96%
Russell 3000 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent   15.30% 15.96% 12.96%
Russell 3000 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent   15.30% 15.96% 12.96%
Russell 3000 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent   15.30% 15.96% 12.96%
MSCI All Country World Investable Market Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 8.56%      
Russell Microcap Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent   13.40% 9.30% 6.03%
Russell Microcap Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent   13.40% 9.30% 6.03%
Russell 2000 Value Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent   5.54% 12.47% 6.72%
Russell 2000 Value Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent   5.54% 12.47% 6.72%
FTSE 3-Month Teasury Bill Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 3.25%