Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000726854-24-000135-index-headers.html | 2024-05-08 13:57:09 | |
| 0000726854-24-000135-index.html | 2024-05-08 13:57:09 | |
| 0000726854-24-000135.txt | 2024-05-08 13:57:09 | |
 0000726854-24-000135-xbrl.zip | 318746 | 2024-05-08 13:57:09 |
| chco-20240331.htm | 2637492 | 2024-05-08 13:57:09 |
| chco-20240331.xsd | 44339 | 2024-05-08 13:57:09 |
| chco-20240331_cal.xml | 106026 | 2024-05-08 13:57:09 |
| chco-20240331_def.xml | 371866 | 2024-05-08 13:57:09 |
 chco-20240331_g1.jpg | 11819 | 2024-05-08 13:57:09 |
| chco-20240331_htm.xml | 3355041 | 2024-05-08 13:57:09 |
| chco-20240331_lab.xml | 741681 | 2024-05-08 13:57:09 |
| chco-20240331_pre.xml | 572860 | 2024-05-08 13:57:09 |
| exhibit31a03-31x2024.htm | 10747 | 2024-05-08 13:57:09 |
| exhibit31b03-31x2024.htm | 10937 | 2024-05-08 13:57:09 |
| exhibit32a03-31x2024.htm | 6782 | 2024-05-08 13:57:09 |
| exhibit32b03-31x2024.htm | 6943 | 2024-05-08 13:57:09 |
| FilingSummary.xml | 42300 | 2024-05-08 13:57:09 |
| Financial_Report.xlsx | 124312 | 2024-05-08 13:57:09 |
| MetaLinks.json | 1058467 | 2024-05-08 13:57:09 |
| R1.htm | 51529 | 2024-05-08 13:57:09 |
| R10.htm | 18578 | 2024-05-08 13:57:09 |
| R11.htm | 27950 | 2024-05-08 13:57:09 |
| R12.htm | 122041 | 2024-05-08 13:57:09 |
| R13.htm | 26870 | 2024-05-08 13:57:09 |
| R14.htm | 801991 | 2024-05-08 13:57:09 |
| R15.htm | 42215 | 2024-05-08 13:57:09 |
| R16.htm | 36145 | 2024-05-08 13:57:09 |
| R17.htm | 17133 | 2024-05-08 13:57:09 |
| R18.htm | 41094 | 2024-05-08 13:57:09 |
| R19.htm | 25246 | 2024-05-08 13:57:09 |
| R2.htm | 131006 | 2024-05-08 13:57:09 |
| R20.htm | 152380 | 2024-05-08 13:57:09 |
| R21.htm | 14535 | 2024-05-08 13:57:09 |
| R22.htm | 8483 | 2024-05-08 13:57:09 |
| R23.htm | 25510 | 2024-05-08 13:57:09 |
| R24.htm | 126045 | 2024-05-08 13:57:09 |
| R25.htm | 26338 | 2024-05-08 13:57:09 |
| R26.htm | 790497 | 2024-05-08 13:57:09 |
| R27.htm | 40642 | 2024-05-08 13:57:09 |
| R28.htm | 33476 | 2024-05-08 13:57:09 |
| R29.htm | 13045 | 2024-05-08 13:57:09 |
| R3.htm | 26020 | 2024-05-08 13:57:09 |
| R30.htm | 42354 | 2024-05-08 13:57:09 |
| R31.htm | 24531 | 2024-05-08 13:57:09 |
| R32.htm | 138112 | 2024-05-08 13:57:09 |
| R33.htm | 19575 | 2024-05-08 13:57:09 |
| R34.htm | 8387 | 2024-05-08 13:57:09 |
| R35.htm | 40415 | 2024-05-08 13:57:09 |
| R36.htm | 58069 | 2024-05-08 13:57:09 |
| R37.htm | 9301 | 2024-05-08 13:57:09 |
| R38.htm | 43437 | 2024-05-08 13:57:09 |
| R39.htm | 32980 | 2024-05-08 13:57:09 |
| R4.htm | 128854 | 2024-05-08 13:57:09 |
| R40.htm | 41374 | 2024-05-08 13:57:09 |
| R41.htm | 31004 | 2024-05-08 13:57:09 |
| R42.htm | 17520 | 2024-05-08 13:57:09 |
| R43.htm | 49431 | 2024-05-08 13:57:09 |
| R44.htm | 28771 | 2024-05-08 13:57:09 |
| R45.htm | 68425 | 2024-05-08 13:57:09 |
| R46.htm | 37969 | 2024-05-08 13:57:09 |
| R47.htm | 107323 | 2024-05-08 13:57:09 |
| R48.htm | 197046 | 2024-05-08 13:57:09 |
| R49.htm | 11146 | 2024-05-08 13:57:09 |
| R5.htm | 38644 | 2024-05-08 13:57:09 |
| R50.htm | 18338 | 2024-05-08 13:57:09 |
| R51.htm | 13301 | 2024-05-08 13:57:09 |
| R52.htm | 10952 | 2024-05-08 13:57:09 |
| R53.htm | 17416 | 2024-05-08 13:57:09 |
| R54.htm | 27298 | 2024-05-08 13:57:09 |
| R55.htm | 14515 | 2024-05-08 13:57:09 |
| R56.htm | 17143 | 2024-05-08 13:57:09 |
| R57.htm | 4045 | 2024-05-08 13:57:09 |
| R58.htm | 31334 | 2024-05-08 13:57:09 |
| R59.htm | 27959 | 2024-05-08 13:57:09 |
| R6.htm | 81813 | 2024-05-08 13:57:09 |
| R60.htm | 48708 | 2024-05-08 13:57:09 |
| R61.htm | 12199 | 2024-05-08 13:57:09 |
| R62.htm | 69975 | 2024-05-08 13:57:09 |
| R63.htm | 11717 | 2024-05-08 13:57:09 |
| R64.htm | 74402 | 2024-05-08 13:57:09 |
| R7.htm | 122895 | 2024-05-08 13:57:09 |
| R8.htm | 9971 | 2024-05-08 13:57:09 |
| R9.htm | 9620 | 2024-05-08 13:57:09 |
| report.css | 2767 | 2024-05-08 13:57:09 |
| Show.js | 1085 | 2024-05-08 13:57:09 |