v3.26.1
Average Annual Total Returns
 12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Paradigm Value Fund | S&P 500 Index (does not reflect deductions for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.88% 14.42% 14.82%
Paradigm Value Fund | Russell 2000 Value Index (does not reflect deductions for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 12.59% 8.88% 9.27%
Paradigm Value Fund | Paradigm Value Fund Shares      
Prospectus [Line Items]      
Average Annual Return, Percent 5.72% 6.95% 10.19%
Paradigm Value Fund | Paradigm Value Fund Shares | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 1.45% 4.62% 7.98%
Paradigm Value Fund | Paradigm Value Fund Shares | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 6.50% 5.31% 7.89%
Paradigm Select Fund | S&P 500 Index (does not reflect deductions for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.88% 14.42% 14.82%
Paradigm Select Fund | Russell 2500 Index (does not reflect deductions for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 11.91% 7.26% 10.41%
Paradigm Select Fund | Paradigm Select Fund Shares      
Prospectus [Line Items]      
Average Annual Return, Percent 13.27% 10.12% 13.10%
Paradigm Select Fund | Paradigm Select Fund Shares | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 13.24% 10.07% 12.77%
Paradigm Select Fund | Paradigm Select Fund Shares | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 7.89% 8.02% 10.82%
Paradigm Micro-Cap Fund | S&P 500 Index (does not reflect deductions for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.88% 14.42% 14.82%
Paradigm Micro-Cap Fund | Russell Microcap Index (does not reflect deductions for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 22.98% 7.32% 9.58%
Paradigm Micro-Cap Fund | Paradigm Micro-Cap Fund Shares      
Prospectus [Line Items]      
Average Annual Return, Percent (4.79%) 5.29% 11.81%
Paradigm Micro-Cap Fund | Paradigm Micro-Cap Fund Shares | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent (7.86%) 4.25% 10.35%
Paradigm Micro-Cap Fund | Paradigm Micro-Cap Fund Shares | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent (0.58%) 4.15% 9.38%