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|---|---|---|
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| 0000763563-23-000061-index.html | 2023-05-12 16:28:09 | |
| 0000763563-23-000061.txt | 2023-05-12 16:28:09 | |
 0000763563-23-000061-xbrl.zip | 582743 | 2023-05-12 16:28:09 |
| chmg-20230331.htm | 4326515 | 2023-05-12 16:28:09 |
| chmg-20230331.xsd | 60614 | 2023-05-12 16:28:09 |
| chmg-20230331_cal.xml | 157657 | 2023-05-12 16:28:09 |
| chmg-20230331_def.xml | 434819 | 2023-05-12 16:28:09 |
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| chmg-20230331_htm.xml | 4224607 | 2023-05-12 16:28:09 |
| chmg-20230331_lab.xml | 891037 | 2023-05-12 16:28:09 |
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| chmg10q03312023exh31-2.htm | 8480 | 2023-05-12 16:28:09 |
| chmg10q03312023exh32-1.htm | 4065 | 2023-05-12 16:28:09 |
| chmg10q03312023exh32-2.htm | 3780 | 2023-05-12 16:28:09 |
| FilingSummary.xml | 42967 | 2023-05-12 16:28:09 |
| Financial_Report.xlsx | 155766 | 2023-05-12 16:28:09 |
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| report.css | 2767 | 2023-05-12 16:28:09 |
| Show.js | 1085 | 2023-05-12 16:28:09 |