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| 0001387131-19-002002.txt | 2019-03-18 14:54:19 | |
 0001387131-19-002002-xbrl.zip | 234607 | 2019-03-18 14:54:19 |
| cofs-10k_123118.htm | 1550402 | 2019-03-18 14:54:19 |
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| report.css | 2768 | 2019-03-18 14:54:19 |
| Show.js | 1086 | 2019-03-18 14:54:19 |