XML 76 R62.htm IDEA: XBRL DOCUMENT
v3.24.3

Note 9 - Share-based Payments (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Statement Line Items [Line Items] |  |  |  |  |
Expense from equity-settled share-based payment transactions | $ 279 | $ 233 | $ 785 | $ 564 |
Performance share units (PSUs) [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Liabilities from share-based payment transactions | $ 1,664 |  | 1,664 |  | $ 1,294
Expense from share-based payment transactions |  |  | 479 | 298 |
Value of other equity instruments exercised or vested in share-based payment arrangement, share capital |  |  | 83 | 351 |
Performance share units (PSUs) [member] | Production costs [Member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Expense from share-based payment transactions |  |  | $ 665 | $ 435 |
Performance share units (PSUs) [member] | Bottom of range [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Performance probability |  |  | 95.00% | 93.00% |
Performance share units (PSUs) [member] | Top of range [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Performance probability |  |  | 106.00% | 100.00% |
Equity-settled performance units (EPUs) [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Expense from equity-settled share-based payment transactions |  |  | $ 384 | $ 564 |
Equity-settled performance units (EPUs) [member] | Production costs [Member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Expense from equity-settled share-based payment transactions |  |  | $ 163 | 0 |
Equity-settled performance units (EPUs) [member] | Bottom of range [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Performance probability |  |  | 47.00% |  |
Equity-settled performance units (EPUs) [member] | Top of range [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Performance probability |  |  | 105.00% |  |
Equity settlement restricted share units [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Expense from equity-settled share-based payment transactions |  |  | $ 401 | $ 0 |
Value from equity settled sharebased compensation tax portion recognised in equity |  |  | $ 220 |  |

X
- Definition The probability that performance conditions will be met on performance share units. + References No definition available. + Details
Name: | cmcl_PerformanceProbability
Namespace Prefix: | cmcl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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 value from equity-settled share-based compensation, tax portion recognised in equity. + References No definition available. + Details
Name: | cmcl_ValueFromEquitySettledSharebasedCompensationTaxPortionRecognisedInEquity
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The value of other equity instruments exercised or vested in share-based payment arrangement issued as share capital. + References No definition available. + Details
Name: | cmcl_ValueOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangementShareCapital
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of expense arising from equity-settled share-based payment transactions in which the goods or services received did not qualify for recognition as assets. [Refer: Expense from share-based payment transactions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 51 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_51_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense arising from share-based payment transactions in which the goods or services received did not qualify for recognition as assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 51 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_51_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of liabilities arising from share-based payment transactions. Share-based payment transactions are transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Types of share-based payment arrangements [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 51 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_51_b_i&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=cmcl_PerformanceShareUnitsPsusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis=cmcl_ProductionCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=cmcl_EquitysettledPerformanceUnitsEpusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=cmcl_EquitySettlementRestrictedShareUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |