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Note 14 - Administrative expense (Tables) | 12 Months Ended
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Dec. 31, 2019
Statement Line Items [Line Items] |
Disclosure of the components of general and administrative expense [text block] |
|  | 2019 |  | 2018 |  | 2017
Investor relations |  |  | 414 |  |  |  | 751 |  |  |  | 541 |
Audit fee |  |  | 237 |  |  |  | 266 |  |  |  | 231 |
Advisory services fees |  |  | 408 |  |  |  | 553 |  |  |  | 684 |
Listing fees |  |  | 277 |  |  |  | 495 |  |  |  | 402 |
Directors fees Company |  |  | 240 |  |  |  | 225 |  |  |  | 247 |
Directors fees Blanket Mine |  |  | 31 |  |  |  | 52 |  |  |  | 40 |
Employee costs |  |  | 3,030 |  |  |  | 2,917 |  |  |  | 2,781 |
Eersteling Gold Mine administration cost |  |  | 17 |  |  |  | 212 |  |  |  | 142 |
Other office administration costs |  |  | 691 |  |  |  | 697 |  |  |  | 444 |
Travel costs |  |  | 292 |  |  |  | 297 |  |  |  | 399 |
|  |  | 5,637 |  |  |  | 6,465 |  |  |  | 5,911 |

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- Definition Tabular disclosure of the components of general and administrative expense. + References No definition available. + Details
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Namespace Prefix: | cmcl_
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Balance Type: | na
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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