Shareholder Report, Average Annual Return (Details)
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12 Months Ended |
60 Months Ended |
120 Months Ended |
May 31, 2026 |
May 31, 2026 |
May 31, 2026 |
| C000131515 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Amana Developing World Fund Institutional Shares
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| C000079787 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Amana Developing World Fund Investor Shares
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| C000131514 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Amana Growth Fund Institutional Shares
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| C000065109 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Amana Growth Fund Investor Shares
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| C000131513 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Amana Income Fund Institutional Shares
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| C000012979 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Amana Income Fund Investor Shares
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| C000160667 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Amana Participation Fund Institutional Shares
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| C000160666 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Amana Participation Fund Investor Shares
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| Without Sales Load [Member] | C000131515 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
53.27%
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8.84%
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8.59%
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| Without Sales Load [Member] | C000079787 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
52.89%
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8.61%
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8.39%
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| Without Sales Load [Member] | C000131514 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
36.70%
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14.20%
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17.84%
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| Without Sales Load [Member] | C000065109 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
36.38%
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13.92%
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17.56%
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| Without Sales Load [Member] | C000131513 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
23.28%
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11.14%
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12.37%
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| Without Sales Load [Member] | C000012979 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
22.99%
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10.88%
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12.11%
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| Without Sales Load [Member] | C000160667 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
4.37%
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1.71%
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2.49%
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| Without Sales Load [Member] | C000160666 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
4.12%
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1.44%
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2.25%
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| Bloomberg Emerging Markets Large, Mid & Small |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
45.91%
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6.79%
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10.76%
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| Bloomberg Emerging Markets Large, Mid & Small |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
45.91%
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6.79%
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10.76%
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| Bloomberg US Large Cap Total Return Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
29.61%
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13.89%
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15.78%
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| Bloomberg US Large Cap Total Return Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
29.61%
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13.89%
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15.78%
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| Bloomberg US Large Cap Total Return Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
29.61%
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13.89%
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15.78%
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| Bloomberg US Large Cap Total Return Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
29.61%
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13.89%
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15.78%
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| Bloomberg Global Aggregate Bond Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
3.26%
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(1.58%)
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0.74%
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| Bloomberg Global Aggregate Bond Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
3.26%
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(1.58%)
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0.74%
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| MSCI Emerging Markets Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
55.15%
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8.03%
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11.12%
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| MSCI Emerging Markets Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
55.15%
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8.03%
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11.12%
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| Bloomberg 1000 Growth Total Return Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
29.89%
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14.24%
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17.57%
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| S&P 500 Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
29.78%
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14.15%
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15.65%
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| Bloomberg 1000 Growth Total Return Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
29.89%
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14.24%
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17.57%
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| S&P 500 Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
29.78%
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14.15%
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15.65%
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| Bloomberg 1000 Value Total Return Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
28.13%
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10.97%
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11.81%
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| S&P 500 Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
29.78%
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14.15%
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15.65%
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| Bloomberg 1000 Value Total Return Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
28.13%
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10.97%
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11.81%
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| S&P 500 Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
29.78%
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14.15%
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15.65%
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| Bloomberg Custom Sukuk |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
5.14%
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0.00%
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0.00%
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| FTSE IdealRatings Sukuk Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
5.05%
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1.84%
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3.39%
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| Bloomberg Custom Sukuk |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
5.14%
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0.00%
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0.00%
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| FTSE IdealRatings Sukuk Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
5.05%
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1.84%
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3.39%
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