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| crai-20220101.htm | 1923910 | 2022-03-03 08:23:05 |
| crai-20220101.xsd | 59367 | 2022-03-03 08:23:05 |
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| crai-20220101_htm.xml | 1500235 | 2022-03-03 08:23:05 |
| crai-20220101_lab.xml | 811580 | 2022-03-03 08:23:05 |
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| craiq4-202110xkexx321.htm | 5513 | 2022-03-03 08:23:05 |
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| FilingSummary.xml | 43415 | 2022-03-03 08:23:05 |
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| report.css | 2767 | 2022-03-03 08:23:05 |
| Show.js | 1085 | 2022-03-03 08:23:05 |