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v3.23.1

Note 20 - Inventories (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Statement Line Items [Line Items] |  |  |
Write-down of inventory | $ 563 | $ 0 | $ 0

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

X
- Definition The amount of inventory write-down. + References No definition available. + Details
Name: | cmcl_WritedownOfInventory
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration