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| 0000950170-22-016971.txt | 2022-08-11 19:19:44 | |
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| chth-20220630.htm | 2850895 | 2022-08-11 19:19:44 |
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| chth-ex32_1.htm | 22048 | 2022-08-11 19:19:44 |
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| Financial_Report.xlsx | 73344 | 2022-08-11 19:19:44 |
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| report.css | 2767 | 2022-08-11 19:19:44 |
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