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| 0001016178-23-000006.txt | 2023-02-14 16:12:19 | |
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| carv-20221231.htm | 2981622 | 2023-02-14 16:12:19 |
| carv-20221231.xsd | 32775 | 2023-02-14 16:12:19 |
| carv-20221231_cal.xml | 60014 | 2023-02-14 16:12:19 |
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| carv-20221231_lab.xml | 629424 | 2023-02-14 16:12:19 |
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| december31202210qex311.htm | 11188 | 2023-02-14 16:12:19 |
| december31202210qex312.htm | 11824 | 2023-02-14 16:12:19 |
| december31202210qex321.htm | 5414 | 2023-02-14 16:12:19 |
| december31202210qex322.htm | 5413 | 2023-02-14 16:12:19 |
| FilingSummary.xml | 35256 | 2023-02-14 16:12:19 |
| Financial_Report.xlsx | 117007 | 2023-02-14 16:12:19 |
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| R1.htm | 12364 | 2023-02-14 16:12:19 |
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| report.css | 2767 | 2023-02-14 16:12:19 |
| Show.js | 1085 | 2023-02-14 16:12:19 |