Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001140361-22-017919-index-headers.html | 2022-05-05 17:49:40 | |
| 0001140361-22-017919-index.html | 2022-05-05 17:49:40 | |
| 0001140361-22-017919.txt | 2022-05-05 17:49:40 | |
 0001140361-22-017919-xbrl.zip | 207690 | 2022-05-05 17:49:40 |
| brhc10037003_10q.htm | 1427135 | 2022-05-05 17:49:40 |
| brhc10037003_10q_htm.xml | 1249815 | 2022-05-05 17:49:40 |
| brhc10037003_ex31-1.htm | 13839 | 2022-05-05 17:49:40 |
| brhc10037003_ex31-2.htm | 14166 | 2022-05-05 17:49:40 |
| brhc10037003_ex32-1.htm | 6832 | 2022-05-05 17:49:40 |
| brhc10037003_ex32-2.htm | 6277 | 2022-05-05 17:49:40 |
| cthr-20220331.xsd | 43530 | 2022-05-05 17:49:40 |
| cthr-20220331_cal.xml | 57682 | 2022-05-05 17:49:40 |
| cthr-20220331_def.xml | 210223 | 2022-05-05 17:49:40 |
| cthr-20220331_lab.xml | 599049 | 2022-05-05 17:49:40 |
| cthr-20220331_pre.xml | 378687 | 2022-05-05 17:49:40 |
| FilingSummary.xml | 32854 | 2022-05-05 17:49:40 |
| Financial_Report.xlsx | 78490 | 2022-05-05 17:49:40 |
| MetaLinks.json | 562392 | 2022-05-05 17:49:40 |
| R1.htm | 52370 | 2022-05-05 17:49:40 |
| R10.htm | 8037 | 2022-05-05 17:49:40 |
| R11.htm | 38402 | 2022-05-05 17:49:40 |
| R12.htm | 7549 | 2022-05-05 17:49:40 |
| R13.htm | 17378 | 2022-05-05 17:49:40 |
| R14.htm | 16179 | 2022-05-05 17:49:40 |
| R15.htm | 50298 | 2022-05-05 17:49:40 |
| R16.htm | 18790 | 2022-05-05 17:49:40 |
| R17.htm | 58757 | 2022-05-05 17:49:40 |
| R18.htm | 41537 | 2022-05-05 17:49:40 |
| R19.htm | 24776 | 2022-05-05 17:49:40 |
| R2.htm | 121429 | 2022-05-05 17:49:40 |
| R20.htm | 6962 | 2022-05-05 17:49:40 |
| R21.htm | 33409 | 2022-05-05 17:49:40 |
| R22.htm | 12178 | 2022-05-05 17:49:40 |
| R23.htm | 213946 | 2022-05-05 17:49:40 |
| R24.htm | 33687 | 2022-05-05 17:49:40 |
| R25.htm | 17026 | 2022-05-05 17:49:40 |
| R26.htm | 33243 | 2022-05-05 17:49:40 |
| R27.htm | 56020 | 2022-05-05 17:49:40 |
| R28.htm | 38526 | 2022-05-05 17:49:40 |
| R29.htm | 22733 | 2022-05-05 17:49:40 |
| R3.htm | 10716 | 2022-05-05 17:49:40 |
| R30.htm | 25696 | 2022-05-05 17:49:40 |
| R31.htm | 9317 | 2022-05-05 17:49:40 |
| R32.htm | 59960 | 2022-05-05 17:49:40 |
| R33.htm | 17333 | 2022-05-05 17:49:40 |
| R34.htm | 13596 | 2022-05-05 17:49:40 |
| R35.htm | 4989 | 2022-05-05 17:49:40 |
| R36.htm | 30486 | 2022-05-05 17:49:40 |
| R37.htm | 14299 | 2022-05-05 17:49:40 |
| R38.htm | 20138 | 2022-05-05 17:49:40 |
| R39.htm | 24709 | 2022-05-05 17:49:40 |
| R4.htm | 75498 | 2022-05-05 17:49:40 |
| R40.htm | 60421 | 2022-05-05 17:49:40 |
| R41.htm | 19223 | 2022-05-05 17:49:40 |
| R42.htm | 15927 | 2022-05-05 17:49:40 |
| R43.htm | 25744 | 2022-05-05 17:49:40 |
| R44.htm | 17652 | 2022-05-05 17:49:40 |
| R45.htm | 4519 | 2022-05-05 17:49:40 |
| R46.htm | 10988 | 2022-05-05 17:49:40 |
| R47.htm | 31305 | 2022-05-05 17:49:40 |
| R48.htm | 45071 | 2022-05-05 17:49:40 |
| R49.htm | 26665 | 2022-05-05 17:49:40 |
| R5.htm | 65858 | 2022-05-05 17:49:40 |
| R50.htm | 49402 | 2022-05-05 17:49:40 |
| R51.htm | 27639 | 2022-05-05 17:49:40 |
| R52.htm | 11578 | 2022-05-05 17:49:40 |
| R6.htm | 77856 | 2022-05-05 17:49:40 |
| R7.htm | 8224 | 2022-05-05 17:49:40 |
| R8.htm | 22069 | 2022-05-05 17:49:40 |
| R9.htm | 216436 | 2022-05-05 17:49:40 |
| report.css | 2767 | 2022-05-05 17:49:40 |
| Show.js | 1085 | 2022-05-05 17:49:40 |