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| 0001140361-24-034331.txt | 2024-07-26 10:59:24 | |
 0001140361-24-034331-xbrl.zip | 13289 | 2024-07-26 10:59:24 |
| cofs-20240726.xsd | 3871 | 2024-07-26 10:59:24 |
| cofs-20240726_lab.xml | 21966 | 2024-07-26 10:59:24 |
| cofs-20240726_pre.xml | 16048 | 2024-07-26 10:59:24 |
| FilingSummary.xml | 1716 | 2024-07-26 10:59:24 |
| Financial_Report.xlsx | 5693 | 2024-07-26 10:59:24 |
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| R1.htm | 38095 | 2024-07-26 10:59:24 |
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