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Note 21 - Prepayments (Tables) | 12 Months Ended
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Dec. 31, 2021
Statement Line Items [Line Items] |
Disclosure of detailed information about prepayments [text block] |
|  | 2021 |  |  | 2020 |
Suppliers - South Africa |  |  | 1,552 |  |  |  | 846 |
- Zimbabwe |  |  | 1,766 |  |  |  | 1,073 |
Solar (note 18) |  |  | 2,951 |  |  |  | – |
Other prepayments |  |  | 661 |  |  |  | 55 |
|  |  | 6,930 |  |  |  | 1,974 |

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- Definition Disclosure of detailed information about prepayments. + 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
Name: | cmcl_StatementLineItems
Namespace Prefix: | cmcl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration