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
North Star Micro Cap Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.88% 14.42% 14.82%
North Star Micro Cap Fund | Morningstar US Small Value TR USD Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 11.84% 11.59% 9.26%
North Star Micro Cap Fund | North Star Micro Cap Fund Class I Shares      
Prospectus [Line Items]      
Average Annual Return, Label [Optional Text] Return Before Taxes    
Average Annual Return, Percent (0.95%) 3.70% 8.39%
North Star Micro Cap Fund | North Star Micro Cap Fund Class I Shares | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent (1.89%) 3.15% 7.74%
North Star Micro Cap Fund | North Star Micro Cap Fund Class I Shares | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent (0.05%) 2.83% 6.71%
North Star Dividend Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.88% 14.42% 14.82%
North Star Dividend Fund | Morningstar US Small Value TR USD Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 11.84% 11.59% 9.26%
North Star Dividend Fund | North Star Dividend Fund Class I Shares      
Prospectus [Line Items]      
Average Annual Return, Label [Optional Text] Return Before Taxes    
Average Annual Return, Percent (1.30%) 4.41% 6.06%
North Star Dividend Fund | North Star Dividend Fund Class I Shares | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent (2.10%) 3.35% 5.02%
North Star Dividend Fund | North Star Dividend Fund Class I Shares | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent (0.21%) 3.32% 4.65%
North Star Opportunity Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.88% 14.42% 14.82%
North Star Opportunity Fund | S&P Target Risk Aggressive Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 19.75% 9.31% 9.97%
North Star Opportunity Fund | S&P 500 Target Risk Balanced Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 16.59% 7.05% 8.14%
North Star Opportunity Fund | North Star Opportunity Fund Class A Shares      
Prospectus [Line Items]      
Average Annual Return, Label [Optional Text] Return Before Taxes    
Average Annual Return, Percent [1] 5.85% 4.16% 7.65%
Performance Inception Date Dec. 15, 2011    
North Star Opportunity Fund | North Star Opportunity Fund Class I Shares      
Prospectus [Line Items]      
Average Annual Return, Label [Optional Text] Return Before Taxes    
Average Annual Return, Percent 12.60% 5.68% 8.55%
North Star Opportunity Fund | North Star Opportunity Fund Class I Shares | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 10.96% 4.69% 7.66%
North Star Opportunity Fund | North Star Opportunity Fund Class I Shares | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 8.51% 4.31% 6.74%
North Star Bond Fund | Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 7.30% (0.36%) 2.01%
North Star Bond Fund | Bloomberg Barclays Ba/B U.S. High Yield Index TR (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 8.78% 4.12% 6.17%
North Star Bond Fund | North Star Bond Fund Class I Shares      
Prospectus [Line Items]      
Average Annual Return, Label [Optional Text] Return Before Taxes    
Average Annual Return, Percent 4.08% 2.06% 2.69%
North Star Bond Fund | North Star Bond Fund Class I Shares | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 2.35% 0.71% 1.36%
North Star Bond Fund | North Star Bond Fund Class I Shares | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 2.39% 1.03% 1.53%
North Star Small Cap Value Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.88% 14.42% 14.82%
North Star Small Cap Value Fund | Morningstar US Small Value TR USD Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 11.84% 11.59% 9.26%
North Star Small Cap Value Fund | North Star Small Cap Value Fund Institutional Class      
Prospectus [Line Items]      
Average Annual Return, Label [Optional Text] Return Before Taxes    
Average Annual Return, Percent [2] 14.14% 11.99% 0.00%
Performance Inception Date Dec. 31, 2018    
North Star Small Cap Value Fund | North Star Small Cap Value Fund Investor Class      
Prospectus [Line Items]      
Average Annual Return, Label [Optional Text] Return Before Taxes    
Average Annual Return, Percent 13.89% 11.76% 9.44%
North Star Small Cap Value Fund | North Star Small Cap Value Fund Investor Class | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 10.72% 7.04% 6.51%
North Star Small Cap Value Fund | North Star Small Cap Value Fund Investor Class | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 10.48% 8.17% 6.92%
[1] Class A shares commenced operations on December 15, 2011.
[2] Institutional Class shares commenced operations on December 31, 2018.