v3.26.3
Fees and Expenses
May 31, 2026
Amana Income Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

This section describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below.

Shareholder Fees Caption [Optional Text] Shareowner Fees None.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]

Income Fund

Investor
Shares

Institutional
Shares

 

Management Fees

0.71%

0.71%

 

Distribution (12b-1) Fees

0.25%

None

 

Other Expenses

0.03%

0.04%

 

Total Annual Fund Operating Expenses

0.99%

0.75%

 
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This Example is intended to help investors compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds.

The Example assumes an investor invests $10,000 in shares of the Fund for the time periods indicated and then redeems all shares at the end of those periods. The Example also assumes that the investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although actual costs may be higher or lower, based on these assumptions, an investor’s expenses would be:

Expense Example, With Redemption [Table]

1 Year

3 Years

5 Years

10 Years

Investor Shares

$101

$315

$547

$1,212

Institutional Shares

$77

$240

$417

$930

Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund may have transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 10.09% of the average value of its portfolio.

Portfolio Turnover, Rate 10.09%
Amana Growth Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

This section describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below.

Shareholder Fees Caption [Optional Text] Shareowner Fees None.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]

Growth Fund
      

Investor
Shares

Institutional
Shares

 

Management Fees

0.58%

0.58%

 

Distribution (12b-1) Fees

0.25%

None

 

Other Expenses

0.03%

0.03%

 

Total Annual Fund Operating Expenses

0.86%

0.61%

 
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This Example is intended to help investors compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds.

The Example assumes an investor invests $10,000 in shares of the Fund for the time periods indicated and then redeems all shares at the end of those periods. The Example also assumes that the investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although actual costs may be higher or lower, based on these assumptions, an investor’s expenses would be:

Expense Example, With Redemption [Table]

1 Year

3 Years

5 Years

10 Years

Investor Shares

$88

$274

$477

$1,061

Institutional Shares

$62

$195

$339

$759

Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund may have transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 12.09% of the average value of its portfolio.

Portfolio Turnover, Rate 12.09%
Amana Developing World Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

This section describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below.

Shareholder Fees Caption [Optional Text] Shareowner Fees None.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]

Developing World Fund
    

Investor
Shares

Institutional
Shares

 

Management Fees

0.80%

0.80%

 

Distribution (12b-1) Fees

0.25%

None

 

Other Expenses

0.15%

0.18%

 

Total Annual Fund Operating Expenses

1.20%

0.98%

 
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This Example is intended to help investors compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds.

The Example assumes an investor invests $10,000 in shares of the Fund for the time periods indicated and then redeems all shares at the end of those periods. The Example also assumes that the investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although actual costs may be higher or lower, based on these assumptions, an investor’s expenses would be:

Expense Example, With Redemption [Table]

1 Year

3 Years

5 Years

10 Years

Investor Shares

$122

$381

$660

$1,455

Institutional Shares

$100

$312

$542

$1,201

Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund may have transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 14.37% of the average value of its portfolio.

Portfolio Turnover, Rate 14.37%
Amana Participation Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

This section describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below.

Shareholder Fees Caption [Optional Text] Shareowner Fees None.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]

Participation Fund
     

Investor
Shares

Institutional
Shares

 

Management Fees

0.50%

0.50%

 

Distribution (12b-1) Fees

0.25%

None

 

Other Expenses

0.06%

0.07%

 

Total Annual Fund Operating Expenses

0.81%

0.57%

 

​1   Annual Fund Operating Expenses include all fees and expenses related to the Fund’s wholly-owned and controlled subsidiary.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This Example is intended to help investors compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds.

The Example assumes an investor invests $10,000 in shares of the Fund for the time periods indicated and then redeems all shares at the end of those periods. The Example also assumes that the investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although actual costs may be higher or lower, based on these assumptions, an investor’s expenses would be:

Expense Example, With Redemption [Table]

1 Year

3 Years

5 Years

10 Years

Investor Shares

$83

$259

$450

$1,002

Institutional Shares

$58

$183

$318

$714

Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund may have transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 35.23% of the average value of its portfolio.

Portfolio Turnover, Rate 35.23%