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| 0001053706-23-000007-index.html | 2023-03-02 08:15:59 | |
| 0001053706-23-000007.txt | 2023-03-02 08:15:59 | |
 0001053706-23-000007-xbrl.zip | 424831 | 2023-03-02 08:15:59 |
| crai-20221231.htm | 1950907 | 2023-03-02 08:15:59 |
| crai-20221231.xsd | 64452 | 2023-03-02 08:15:59 |
| crai-20221231_cal.xml | 107441 | 2023-03-02 08:15:59 |
| crai-20221231_def.xml | 238840 | 2023-03-02 08:15:59 |
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| crai-20221231_htm.xml | 1531364 | 2023-03-02 08:15:59 |
| crai-20221231_lab.xml | 832937 | 2023-03-02 08:15:59 |
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| craiq4-202210xkexx231.htm | 2368 | 2023-03-02 08:15:59 |
| craiq4-202210xkexx311.htm | 10158 | 2023-03-02 08:15:59 |
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| craiq4-202210xkexx321.htm | 5622 | 2023-03-02 08:15:59 |
| craiq4-202210xkexx322.htm | 5682 | 2023-03-02 08:15:59 |
| FilingSummary.xml | 52405 | 2023-03-02 08:15:59 |
| Financial_Report.xlsx | 132397 | 2023-03-02 08:15:59 |
| MetaLinks.json | 915693 | 2023-03-02 08:15:59 |
| R1.htm | 62555 | 2023-03-02 08:15:59 |
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| report.css | 2768 | 2023-03-02 08:15:59 |
| Show.js | 1086 | 2023-03-02 08:15:59 |