v3.26.1
Shareholder Report, Line Graph (Details) - USD ($)
 9 Months Ended 12 Months Ended 21 Months Ended 24 Months Ended 36 Months Ended 48 Months Ended 60 Months Ended 72 Months Ended 84 Months Ended 96 Months Ended 108 Months Ended 120 Months Ended
Oct. 15, 2024
Jun. 30, 2016
Jun. 30, 2025
Jun. 30, 2017
Jun. 30, 2026
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2026
C000012182                            
Account Value [Line Items]                            
Accumulated Value   $ 10,000   $ 12,188   $ 13,600 $ 12,693 $ 11,737 $ 17,310 $ 13,189 $ 15,652 $ 20,087 $ 25,283 $ 31,274
C000012186                            
Account Value [Line Items]                            
Accumulated Value   10,000   11,688   12,755 10,907 10,075 21,215 16,751 18,488 19,544 23,272 29,240
C000012187                            
Account Value [Line Items]                            
Accumulated Value   10,000   12,660   15,301 12,703 11,307 23,047 16,046 16,044 16,553 18,819 29,400
C000012190                            
Account Value [Line Items]                            
Accumulated Value   10,000   12,008   14,448 11,974 10,006 22,291 20,996 23,368 24,853 24,901 34,112
C000103073                            
Account Value [Line Items]                            
Accumulated Value   10,000   12,483   14,575 12,124 9,358 18,240 17,391 18,268 21,179 21,423 31,208
C000254224                            
Account Value [Line Items]                            
Accumulated Value $ 10,000   $ 10,641   $ 12,525                  
S&P 500 Index                            
Account Value [Line Items]                            
Accumulated Value   10,000   11,790   13,484 14,889 16,006 22,536 20,144 24,091 30,006 34,556 42,271
Russell 3000 Index                            
Account Value [Line Items]                            
Accumulated Value   10,000   11,851   13,602 14,824 15,792 22,767 19,610 23,327 28,721 33,114 40,672
Russell 3000 Index                            
Account Value [Line Items]                            
Accumulated Value   10,000   11,851   13,602 14,824 15,792 22,767 19,610 23,327 28,721 33,114 40,672
Russell 3000 Index                            
Account Value [Line Items]                            
Accumulated Value   10,000   11,851   13,602 14,824 15,792 22,767 19,610 23,327 28,721 33,114 40,672
Russell 3000 Index                            
Account Value [Line Items]                            
Accumulated Value   10,000   11,851   13,602 14,824 15,792 22,767 19,610 23,327 28,721 33,114 40,672
MSCI All Country World Investable Market Index                            
Account Value [Line Items]                            
Accumulated Value 10,000   10,856   13,485                  
Russell Microcap Index                            
Account Value [Line Items]                            
Accumulated Value   10,000   12,760   15,339 13,746 13,090 23,009 15,937 16,995 18,007 20,420 32,376
Russell Microcap Index                            
Account Value [Line Items]                            
Accumulated Value   10,000   12,760   15,339 13,746 13,090 23,009 15,937 16,995 18,007 20,420 32,376
Russell 2000 Value Index                            
Account Value [Line Items]                            
Accumulated Value   10,000   12,486   14,121 13,241 10,927 18,934 15,851 16,803 18,634 19,666 28,123
Russell 2000 Value Index                            
Account Value [Line Items]                            
Accumulated Value   $ 10,000   $ 12,486   $ 14,121 $ 13,241 $ 10,927 $ 18,934 $ 15,851 $ 16,803 $ 18,634 $ 19,666 $ 28,123
FTSE 3-Month Teasury Bill Index                            
Account Value [Line Items]                            
Accumulated Value $ 10,000   $ 10,325   $ 10,743