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Research and Development (Tables) | 12 Months Ended
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Dec. 31, 2025
Research and Development [Abstract] |
Schedule of research and development |
|  | Year ended |  |  | Year ended |  |  | Year ended |
|  | December 31, |  |  | December 31, |  |  | December 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
|  | USD thousands |  |  | USD thousands |  |  | USD thousands |
Consultants and subcontractors |  |  | 3,640 |  |  |  | 7,994 |  |  |  | 14,014 |
Salaries and related expenses |  |  | 1,848 |  |  |  | 2,715 |  |  |  | 3,362 |
Lease and maintenance |  |  | 79 |  |  |  | 101 |  |  |  | 137 |
Share-based compensation |  |  | 158 |  |  |  | 401 |  |  |  | 407 |
Other expenses |  |  | 108 |  |  |  | 116 |  |  |  | 461 |
|  |  | 5,833 |  |  |  | 11,327 |  |  |  | 18,381

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- Definition Tabular disclosure of research and development 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_ResearchAndDevelopmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration