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Note 10 - Other Expenses (Tables) | 12 Months Ended
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Dec. 31, 2021
Statement Line Items [Line Items] |
Disclosure of other operating expenses components [text block] |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Intermediated Money Transaction Tax |  |  | 799 |  |  |  | 451 |  |  |  | 354 |
Solar evaluation cost * |  |  | – |  |  |  | 230 |  |  |  | 160 |
COVID-19 donations |  |  | 74 |  |  |  | 1,322 |  |  |  | – |
Community and social responsibility cost |  |  | 1,167 |  |  |  | 382 |  |  |  | – |
Other |  |  | – |  |  |  | – |  |  |  | 8 |
Impairment of property, plant and equipment - plant and equipment (note 18) |  |  | 498 |  |  |  | – |  |  |  | 144 |
Impairment of exploration and evaluation assets (note 19) |  |  | 3,837 |  |  |  | 2,930 |  |  |  | – |
Expected credit losses on deferred consideration on the disposal of subsidiary (notes 23.2 and 24) |  |  | 761 |  |  |  | – |  |  |  | – |
|  |  | 7,136 |  |  |  | 5,315 |  |  |  | 666 |

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- Definition Tabular disclosure of the components in other operating expenses. + References No definition available. + Details
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Namespace Prefix: | cmcl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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