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Note 13 - Net Foreign Exchange Gain (Tables) | 12 Months Ended
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Dec. 31, 2023
Statement Line Items [Line Items] |
Disclosure of foreign currency gains (losses) [text block] |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Unrealised foreign exchange gain |  |  | 4,217 |  |  |  | 12,736 |  |  |  | 2,755 |
Realised foreign exchange loss* |  |  | (6,767 | ) |  |  | (8,325 | ) |  |  | (1,571 | )
Net foreign exchange (loss) gain |  |  | (2,550 | ) |  |  | 4,411 |  |  |  | 1,184 |

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- Definition Disclosure of foreign currency gains (losses) reported. + References No definition available. + Details
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Namespace Prefix: | cmcl_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | cmcl_Statement1LineItems
Namespace Prefix: | cmcl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration