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| 0000763563-22-000035-index.html | 2022-03-23 14:15:09 | |
| 0000763563-22-000035.txt | 2022-03-23 14:15:09 | |
 0000763563-22-000035-xbrl.zip | 969045 | 2022-03-23 14:15:09 |
| chmg-20211231.htm | 5531879 | 2022-03-23 14:15:09 |
| chmg-20211231.xsd | 108421 | 2022-03-23 14:15:09 |
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| Financial_Report.xlsx | 204847 | 2022-03-23 14:15:09 |
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| report.css | 2768 | 2022-03-23 14:15:09 |
| Show.js | 1086 | 2022-03-23 14:15:09 |