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v3.23.1

General and Administrative (Tables) | 12 Months Ended
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Dec. 31, 2022
General and Administrative Expense [Abstract] |
Schedule of general and administrative |
|  | Year ended |  |  | Year ended |
|  | December 31, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
|  | USD thousands |  |  | USD thousands |
Salaries and related expenses |  |  | 3,435 |  |  |  | 943 |
Professional services |  |  | 2,596 |  |  |  | 1,695 |
Share-based compensation |  |  | 2,763 |  |  |  | 1,882 |
Fees to Directors |  |  | 231 |  |  |  | 244 |
Insurance |  |  | 1,084 |  |  |  | 1,024 |
Rent and maintenance |  |  | 24 |  |  |  | 29 |
Other expenses |  |  | 1,423 |  |  |  | 216 |
|  |  | 11,556 |  |  |  | 6,033 |

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- Definition Tabular disclosure of general and administrative expenses. + References No definition available. + Details
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Namespace Prefix: | cmmb_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_GeneralAndAdministrativeExpenseAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration