v3.26.1
Expense Example
Mar. 30, 2026
USD ($)
Saturna Growth Fund | Investor Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 100
Expense Example, with Redemption, 3 Years 312
Expense Example, with Redemption, 5 Years 542
Expense Example, with Redemption, 10 Years 1,202
Saturna Growth Fund | Z Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 77
Expense Example, with Redemption, 3 Years 240
Expense Example, with Redemption, 5 Years 417
Expense Example, with Redemption, 10 Years 931
Saturna International Fund | Investor Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 103
Expense Example, with Redemption, 3 Years 323
Expense Example, with Redemption, 5 Years 560
Expense Example, with Redemption, 10 Years 1,240
Saturna International Fund | Z Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 81
Expense Example, with Redemption, 3 Years 254
Expense Example, with Redemption, 5 Years 442
Expense Example, with Redemption, 10 Years 985
Saturna Core Fund | Saturna Core Fund Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 86
Expense Example, with Redemption, 3 Years 268
Expense Example, with Redemption, 5 Years 465
Expense Example, with Redemption, 10 Years 1,035
Saturna Global Sustainable Bond Fund | Saturna Global Sustainable Bond Fund Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 80
Expense Example, with Redemption, 3 Years 252
Expense Example, with Redemption, 5 Years 438
Expense Example, with Redemption, 10 Years $ 975