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| 0001437749-22-012236.txt | 2022-05-13 08:46:16 | |
 0001437749-22-012236-xbrl.zip | 182627 | 2022-05-13 08:46:16 |
| cofs-20220331.xsd | 52621 | 2022-05-13 08:46:16 |
| cofs-20220331_cal.xml | 49534 | 2022-05-13 08:46:16 |
| cofs-20220331_def.xml | 374842 | 2022-05-13 08:46:16 |
| cofs-20220331_lab.xml | 347361 | 2022-05-13 08:46:16 |
| cofs-20220331_pre.xml | 407563 | 2022-05-13 08:46:16 |
| cofs20220331_10q.htm | 2484440 | 2022-05-13 08:46:16 |
| cofs20220331_10q_htm.xml | 3383056 | 2022-05-13 08:46:16 |
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| ex_348677.htm | 5027 | 2022-05-13 08:46:16 |
| FilingSummary.xml | 32962 | 2022-05-13 08:46:16 |
| Financial_Report.xlsx | 81258 | 2022-05-13 08:46:16 |
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| report.css | 2767 | 2022-05-13 08:46:16 |
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