Shareholder Report, Average Annual Return (Details)
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12 Months Ended |
60 Months Ended |
120 Months Ended |
132 Months Ended |
Jun. 30, 2026 |
Jun. 30, 2026 |
Jun. 30, 2026 |
Jun. 30, 2026 |
| C000009900 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
James Balanced: Golden Rainbow Fund - Retail Class
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| C000075008 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
James Balanced: Golden Rainbow Fund - Institutional Class
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| C000009903 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
James Small Cap Fund
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| C000090023 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
James Micro Cap Fund
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| C000157576 |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
James Aggressive Allocation Fund
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| Without Sales Load [Member] | C000009900 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
14.69%
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6.47%
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5.01%
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| Without Sales Load [Member] | C000075008 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
14.94%
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6.74%
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5.28%
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| Without Sales Load [Member] | C000009903 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
32.32%
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14.46%
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10.49%
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| Without Sales Load [Member] | C000090023 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
30.26%
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9.89%
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9.53%
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| Without Sales Load [Member] | C000157576 |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
24.92%
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10.59%
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6.43%
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| Bloomberg US 3000 (USD) TR |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
23.15%
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12.24%
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15.07%
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| Bloomberg US 3000 (USD) TR |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
23.15%
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12.24%
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15.07%
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| Bloomberg US 3000 (USD) TR |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Bloomberg US 3000 Index
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| Average Annual Return, Percent |
23.15%
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12.24%
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15.07%
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| Bloomberg US 3000 (USD) TR |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Bloomberg US 3000 Index
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| Average Annual Return, Percent |
23.15%
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12.24%
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15.07%
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| Bloomberg US 3000 (USD) TR |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
23.15%
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12.24%
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13.77%
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| Bloomberg Intermediate U.S. Government/Credit Bond Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
3.14%
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1.22%
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1.92%
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| Bloomberg US 1000 Total Return Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
22.43%
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12.59%
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15.29%
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| Bloomberg US 2000 (USD) TR |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
40.92%
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7.12%
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11.97%
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| James Golden Rainbow Blend * |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
16.70%
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5.84%
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8.10%
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| VettaFi U.S. Equity 3000 Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
23.19%
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12.21%
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15.06%
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| James Golden Rainbow Blend * |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
16.70%
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5.84%
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8.10%
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| Bloomberg Intermediate U.S. Government/Credit Bond Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
3.14%
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1.22%
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1.92%
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| Bloomberg US 1000 Total Return Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
22.43%
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12.59%
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15.29%
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| Bloomberg US 2000 (USD) TR |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
40.92%
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7.12%
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11.97%
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| VettaFi U.S. Equity 3000 Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
23.19%
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12.21%
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15.06%
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| Bloomberg US 2000 (USD) TR |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Bloomberg US 2000 Index
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| Average Annual Return, Percent |
40.92%
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7.12%
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11.97%
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| VettaFi U.S. Equity 3000 Index |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
VettaFi U.S. Equity 3000 Index
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| Average Annual Return, Percent |
23.19%
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12.21%
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15.06%
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| Bloomberg US Micro Cap Total Return Index |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Bloomberg US Micro Cap Index
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| Average Annual Return, Percent |
39.21%
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(0.56%)
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10.26%
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| VettaFi U.S. Equity 3000 Index |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
VettaFi U.S. Equity 3000 Index
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| Average Annual Return, Percent |
23.19%
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12.21%
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15.06%
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| Bloomberg U.S. Government/Credit Bond Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
3.32%
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(0.10%)
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2.08%
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| James Aggressive Blend * |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
16.01%
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7.98%
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9.81%
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| VettaFi U.S. Equity 3000 Index |
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| Average Annual Return [Line Items] |
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| Average Annual Return, Percent |
23.19%
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12.21%
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13.74%
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