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| 0000726854-25-000130.txt | 2025-05-07 10:22:02 | |
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| chco-20250331.htm | 2537347 | 2025-05-07 10:22:02 |
| chco-20250331.xsd | 38805 | 2025-05-07 10:22:02 |
| chco-20250331_cal.xml | 93688 | 2025-05-07 10:22:02 |
| chco-20250331_def.xml | 275529 | 2025-05-07 10:22:02 |
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| chco-20250331_htm.xml | 3242225 | 2025-05-07 10:22:02 |
| chco-20250331_lab.xml | 671467 | 2025-05-07 10:22:02 |
| chco-20250331_pre.xml | 502610 | 2025-05-07 10:22:02 |
| exhibit31a03-31x2025.htm | 10747 | 2025-05-07 10:22:02 |
| exhibit31b03-31x2025.htm | 10937 | 2025-05-07 10:22:02 |
| exhibit32a03-31x2025.htm | 6782 | 2025-05-07 10:22:02 |
| exhibit32b03-31x2025.htm | 6943 | 2025-05-07 10:22:02 |
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| Financial_Report.xlsx | 114772 | 2025-05-07 10:22:02 |
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