v3.26.3
Expense Example
May 31, 2026
USD ($)
Amana Income Fund | Investor Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 101
Expense Example, with Redemption, 3 Years 315
Expense Example, with Redemption, 5 Years 547
Expense Example, with Redemption, 10 Years 1,212
Amana Income Fund | Institutional 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 930
Amana Growth Fund | Investor Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 88
Expense Example, with Redemption, 3 Years 274
Expense Example, with Redemption, 5 Years 477
Expense Example, with Redemption, 10 Years 1,061
Amana Growth Fund | Institutional Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 62
Expense Example, with Redemption, 3 Years 195
Expense Example, with Redemption, 5 Years 339
Expense Example, with Redemption, 10 Years 759
Amana Developing World Fund | Investor Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 122
Expense Example, with Redemption, 3 Years 381
Expense Example, with Redemption, 5 Years 660
Expense Example, with Redemption, 10 Years 1,455
Amana Developing World Fund | Institutional 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 1,201
Amana Participation Fund | Investor Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 83
Expense Example, with Redemption, 3 Years 259
Expense Example, with Redemption, 5 Years 450
Expense Example, with Redemption, 10 Years 1,002
Amana Participation Fund | Institutional Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 58
Expense Example, with Redemption, 3 Years 183
Expense Example, with Redemption, 5 Years 318
Expense Example, with Redemption, 10 Years $ 714