v3.26.1
Expense Example, No Redemption
Apr. 30, 2026
USD ($)
Mairs & Power Fund | Mairs & Power Fund, Investor Class  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 63
Expense Example, No Redemption, 3 Years 199
Expense Example, No Redemption, 5 Years 346
Expense Example, No Redemption, 10 Years 774
Mairs & Power Balanced Fund | Mairs & Power Balanced Fund, Investor Class  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 74
Expense Example, No Redemption, 3 Years 230
Expense Example, No Redemption, 5 Years 401
Expense Example, No Redemption, 10 Years 894
Mairs & Power Small Cap Fund | Mairs & Power Small Cap Fund, Investor Class  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 99
Expense Example, No Redemption, 3 Years 309
Expense Example, No Redemption, 5 Years 536
Expense Example, No Redemption, 10 Years $ 1,190