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|---|---|---|
 0000950170-23-014797-index-headers.html | 2023-04-26 16:08:44 | |
| 0000950170-23-014797-index.html | 2023-04-26 16:08:44 | |
| 0000950170-23-014797.txt | 2023-04-26 16:08:44 | |
 0000950170-23-014797-xbrl.zip | 32283 | 2023-04-26 16:08:44 |
| cofs-20230426.htm | 63424 | 2023-04-26 16:08:44 |
| cofs-20230426.xsd | 2470 | 2023-04-26 16:08:44 |
| cofs-20230426_htm.xml | 4507 | 2023-04-26 16:08:44 |
| cofs-20230426_lab.xml | 12798 | 2023-04-26 16:08:44 |
| cofs-20230426_pre.xml | 10552 | 2023-04-26 16:08:44 |
| cofs-ex99_1.htm | 1132278 | 2023-04-26 16:08:44 |
| FilingSummary.xml | 1740 | 2023-04-26 16:08:44 |
| Financial_Report.xlsx | 5691 | 2023-04-26 16:08:44 |
 img110299532_0.jpg | 7744 | 2023-04-26 16:08:44 |
| MetaLinks.json | 17547 | 2023-04-26 16:08:44 |
| R1.htm | 38095 | 2023-04-26 16:08:44 |
| report.css | 2767 | 2023-04-26 16:08:44 |
| Show.js | 1085 | 2023-04-26 16:08:44 |