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Note 23 - Cash and Cash Equivalents - Exposure to Risk (Details) $ in Thousands | Dec. 31, 2023 USD ($)
--- | ---
Overdraft facility of Stanbic Bank, RTG [member] |
Statement Line Items [Line Items] |
Denomination | $ 350,000
Balance drawn | 0
Overdraft facility of Stanbic Bank, USD [member] |
Statement Line Items [Line Items] |
Denomination | 4,000
Balance drawn | 3,800
Overdraft facility of Ecobank [member] |
Statement Line Items [Line Items] |
Denomination | 5,000
Balance drawn | 5,000
Nedbank Zimbabwe [member] |
Statement Line Items [Line Items] |
Denomination | 3,500
Balance drawn | 3,400
Nedbank Zimbabwe term loan [member] |
Statement Line Items [Line Items] |
Denomination | 3,500
Balance drawn | 3,500
Overdraft facility for CABS Bank of Zimbabwe [member] |
Statement Line Items [Line Items] |
Denomination | 2,000
Balance drawn | $ 2,000

X
- Definition Represents the bank balance drawn at a specified date. + References No definition available. + Details
Name: | cmcl_BankBalanceDrawn
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition The amount of exposure to loss resulting from credit risk. [Refer: Credit risk [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 36 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_36_c&doctype=Standard&book=b -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph IG24 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_IG24_b&doctype=Implementation%20Guidance&book=b -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph IG25 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_IG25_a&doctype=Implementation%20Guidance&book=b -URIDate 2023-03-23 + Details
Name: | ifrs-full_CreditExposure
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_AssetsAndLiabilitiesAxis=cmcl_OverdraftFacilityOfStanbicBankRtgMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_AssetsAndLiabilitiesAxis=cmcl_OverdraftFacilityOfStanbicBankUsdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_AssetsAndLiabilitiesAxis=cmcl_OverdraftFacilityOfEcobankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_AssetsAndLiabilitiesAxis=cmcl_NedbankZimbabweMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_AssetsAndLiabilitiesAxis=cmcl_NedbankZimbabweTermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_AssetsAndLiabilitiesAxis=cmcl_OverdraftFacilityForCABSBankOfZimbabweMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |