Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000726854-25-000037-index-headers.html | 2025-02-26 14:02:08 | |
| 0000726854-25-000037-index.html | 2025-02-26 14:02:08 | |
| 0000726854-25-000037.txt | 2025-02-26 14:02:08 | |
 0000726854-25-000037-xbrl.zip | 914407 | 2025-02-26 14:02:08 |
| chco-20241231.htm | 3901385 | 2025-02-26 14:02:08 |
| chco-20241231.xsd | 84268 | 2025-02-26 14:02:08 |
| chco-20241231_cal.xml | 148741 | 2025-02-26 14:02:08 |
| chco-20241231_def.xml | 501023 | 2025-02-26 14:02:08 |
 chco-20241231_g1.jpg | 11819 | 2025-02-26 14:02:08 |
 chco-20241231_g2.jpg | 312421 | 2025-02-26 14:02:08 |
 chco-20241231_g3.jpg | 152042 | 2025-02-26 14:02:08 |
| chco-20241231_htm.xml | 4334071 | 2025-02-26 14:02:08 |
| chco-20241231_lab.xml | 1122123 | 2025-02-26 14:02:08 |
| chco-20241231_pre.xml | 874130 | 2025-02-26 14:02:08 |
| exhibit14a12-31x2024.htm | 19892 | 2025-02-26 14:02:08 |
| exhibit19a12-31x2024.htm | 52625 | 2025-02-26 14:02:08 |
| exhibit2112-31x2024.htm | 8133 | 2025-02-26 14:02:08 |
| exhibit2312-31x2024.htm | 3424 | 2025-02-26 14:02:08 |
| exhibit31a12-31x2024.htm | 10481 | 2025-02-26 14:02:08 |
| exhibit31b12-31x2024.htm | 10560 | 2025-02-26 14:02:08 |
| exhibit32a12-31x2024.htm | 6019 | 2025-02-26 14:02:08 |
| exhibit32b12-31x2024.htm | 6160 | 2025-02-26 14:02:08 |
| exhibit97a12-31x2024.htm | 15579 | 2025-02-26 14:02:08 |
| FilingSummary.xml | 79114 | 2025-02-26 14:02:08 |
| Financial_Report.xlsx | 220124 | 2025-02-26 14:02:08 |
| MetaLinks.json | 1522650 | 2025-02-26 14:02:08 |
| R1.htm | 62713 | 2025-02-26 14:02:08 |
| R10.htm | 51500 | 2025-02-26 14:02:08 |
| R100.htm | 13813 | 2025-02-26 14:02:08 |
| R101.htm | 19481 | 2025-02-26 14:02:08 |
| R102.htm | 14350 | 2025-02-26 14:02:08 |
| R103.htm | 30365 | 2025-02-26 14:02:08 |
| R104.htm | 16538 | 2025-02-26 14:02:08 |
| R105.htm | 9509 | 2025-02-26 14:02:08 |
| R106.htm | 11835 | 2025-02-26 14:02:08 |
| R107.htm | 16775 | 2025-02-26 14:02:08 |
| R108.htm | 5744 | 2025-02-26 14:02:08 |
| R109.htm | 11845 | 2025-02-26 14:02:08 |
| R11.htm | 22345 | 2025-02-26 14:02:08 |
| R110.htm | 60323 | 2025-02-26 14:02:08 |
| R111.htm | 64765 | 2025-02-26 14:02:08 |
| R112.htm | 86970 | 2025-02-26 14:02:08 |
| R113.htm | 64230 | 2025-02-26 14:02:08 |
| R114.htm | 58077 | 2025-02-26 14:02:08 |
| R115.htm | 70527 | 2025-02-26 14:02:08 |
| R116.htm | 47374 | 2025-02-26 14:02:08 |
| R117.htm | 33780 | 2025-02-26 14:02:08 |
| R118.htm | 26811 | 2025-02-26 14:02:08 |
| R119.htm | 20871 | 2025-02-26 14:02:08 |
| R12.htm | 27844 | 2025-02-26 14:02:08 |
| R120.htm | 10104 | 2025-02-26 14:02:08 |
| R13.htm | 120209 | 2025-02-26 14:02:08 |
| R14.htm | 27309 | 2025-02-26 14:02:08 |
| R15.htm | 732364 | 2025-02-26 14:02:08 |
| R16.htm | 16118 | 2025-02-26 14:02:08 |
| R17.htm | 28740 | 2025-02-26 14:02:08 |
| R18.htm | 11420 | 2025-02-26 14:02:08 |
| R19.htm | 39941 | 2025-02-26 14:02:08 |
| R2.htm | 7784 | 2025-02-26 14:02:08 |
| R20.htm | 47031 | 2025-02-26 14:02:08 |
| R21.htm | 59740 | 2025-02-26 14:02:08 |
| R22.htm | 131495 | 2025-02-26 14:02:08 |
| R23.htm | 12921 | 2025-02-26 14:02:08 |
| R24.htm | 17310 | 2025-02-26 14:02:08 |
| R25.htm | 4632 | 2025-02-26 14:02:08 |
| R26.htm | 79474 | 2025-02-26 14:02:08 |
| R27.htm | 141984 | 2025-02-26 14:02:08 |
| R28.htm | 83807 | 2025-02-26 14:02:08 |
| R29.htm | 29878 | 2025-02-26 14:02:08 |
| R3.htm | 128567 | 2025-02-26 14:02:08 |
| R30.htm | 35325 | 2025-02-26 14:02:08 |
| R31.htm | 27960 | 2025-02-26 14:02:08 |
| R32.htm | 16624 | 2025-02-26 14:02:08 |
| R33.htm | 14730 | 2025-02-26 14:02:08 |
| R34.htm | 30871 | 2025-02-26 14:02:08 |
| R35.htm | 4387 | 2025-02-26 14:02:08 |
| R36.htm | 41017 | 2025-02-26 14:02:08 |
| R37.htm | 82114 | 2025-02-26 14:02:08 |
| R38.htm | 14550 | 2025-02-26 14:02:08 |
| R39.htm | 9903 | 2025-02-26 14:02:08 |
| R4.htm | 25948 | 2025-02-26 14:02:08 |
| R40.htm | 22976 | 2025-02-26 14:02:08 |
| R41.htm | 117567 | 2025-02-26 14:02:08 |
| R42.htm | 26780 | 2025-02-26 14:02:08 |
| R43.htm | 720688 | 2025-02-26 14:02:08 |
| R44.htm | 14546 | 2025-02-26 14:02:08 |
| R45.htm | 34317 | 2025-02-26 14:02:08 |
| R46.htm | 9564 | 2025-02-26 14:02:08 |
| R47.htm | 40838 | 2025-02-26 14:02:08 |
| R48.htm | 29113 | 2025-02-26 14:02:08 |
| R49.htm | 61092 | 2025-02-26 14:02:08 |
| R5.htm | 129407 | 2025-02-26 14:02:08 |
| R50.htm | 145618 | 2025-02-26 14:02:08 |
| R51.htm | 9215 | 2025-02-26 14:02:08 |
| R52.htm | 11981 | 2025-02-26 14:02:08 |
| R53.htm | 73670 | 2025-02-26 14:02:08 |
| R54.htm | 127637 | 2025-02-26 14:02:08 |
| R55.htm | 85617 | 2025-02-26 14:02:08 |
| R56.htm | 28974 | 2025-02-26 14:02:08 |
| R57.htm | 36541 | 2025-02-26 14:02:08 |
| R58.htm | 20384 | 2025-02-26 14:02:08 |
| R59.htm | 38508 | 2025-02-26 14:02:08 |
| R6.htm | 49121 | 2025-02-26 14:02:08 |
| R60.htm | 8249 | 2025-02-26 14:02:08 |
| R61.htm | 47426 | 2025-02-26 14:02:08 |
| R62.htm | 41829 | 2025-02-26 14:02:08 |
| R63.htm | 12097 | 2025-02-26 14:02:08 |
| R64.htm | 38149 | 2025-02-26 14:02:08 |
| R65.htm | 34295 | 2025-02-26 14:02:08 |
| R66.htm | 63900 | 2025-02-26 14:02:08 |
| R67.htm | 29756 | 2025-02-26 14:02:08 |
| R68.htm | 17875 | 2025-02-26 14:02:08 |
| R69.htm | 48701 | 2025-02-26 14:02:08 |
| R7.htm | 75799 | 2025-02-26 14:02:08 |
| R70.htm | 23024 | 2025-02-26 14:02:08 |
| R71.htm | 70117 | 2025-02-26 14:02:08 |
| R72.htm | 38542 | 2025-02-26 14:02:08 |
| R73.htm | 109388 | 2025-02-26 14:02:08 |
| R74.htm | 230093 | 2025-02-26 14:02:08 |
| R75.htm | 30836 | 2025-02-26 14:02:08 |
| R76.htm | 23895 | 2025-02-26 14:02:08 |
| R77.htm | 17298 | 2025-02-26 14:02:08 |
| R78.htm | 21005 | 2025-02-26 14:02:08 |
| R79.htm | 16784 | 2025-02-26 14:02:08 |
| R8.htm | 34132 | 2025-02-26 14:02:08 |
| R80.htm | 4489 | 2025-02-26 14:02:08 |
| R81.htm | 8586 | 2025-02-26 14:02:08 |
| R82.htm | 25031 | 2025-02-26 14:02:08 |
| R83.htm | 6645 | 2025-02-26 14:02:08 |
| R84.htm | 18866 | 2025-02-26 14:02:08 |
| R85.htm | 19692 | 2025-02-26 14:02:08 |
| R86.htm | 25927 | 2025-02-26 14:02:08 |
| R87.htm | 12778 | 2025-02-26 14:02:08 |
| R88.htm | 11182 | 2025-02-26 14:02:08 |
| R89.htm | 17923 | 2025-02-26 14:02:08 |
| R9.htm | 128122 | 2025-02-26 14:02:08 |
| R90.htm | 11438 | 2025-02-26 14:02:08 |
| R91.htm | 23077 | 2025-02-26 14:02:08 |
| R92.htm | 17613 | 2025-02-26 14:02:08 |
| R93.htm | 26349 | 2025-02-26 14:02:08 |
| R94.htm | 14674 | 2025-02-26 14:02:08 |
| R95.htm | 25684 | 2025-02-26 14:02:08 |
| R96.htm | 10528 | 2025-02-26 14:02:08 |
| R97.htm | 21390 | 2025-02-26 14:02:08 |
| R98.htm | 6400 | 2025-02-26 14:02:08 |
| R99.htm | 40405 | 2025-02-26 14:02:08 |
| report.css | 2768 | 2025-02-26 14:02:08 |
| Show.js | 1086 | 2025-02-26 14:02:08 |