XML 285 R90.htm IDEA: XBRL DOCUMENT
v3.24.1.1.u2

Note 9 - Production Costs - Components of Production Costs (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Statement Line Items [Line Items] |  |  |
Cost of sales | $ 82,709 | $ 62,998 | $ 53,126
Blanket Mine [member] |  |  |
Statement Line Items [Line Items] |  |  |
Production costs | 69,591 | 62,998 | 53,126
Salaries and wages | 25,042 | 23,037 | 20,609
Consumable materials | 24,087 | 23,601 | 17,375
Consumable materials – COVID-19 | 0 | 311 | 297
Electricity costs | 13,496 | 9,634 | 10,407
Safety | 1,155 | 998 | 774
Cash-settled share-based expense (note 12.1(a)) | 637 | 853 | 692
On mine administration | 2,783 | 2,736 | 1,806
Security | 1,020 | 1,093 | 826
Solar operations and maintenance services | 647 | 0 | 0
Obsolete inventory | 283 | 563 | 36
Pre-feasibility exploration costs | 441 | 172 | 304
Bilboes [member] |  |  |
Statement Line Items [Line Items] |  |  |
Production costs | 13,118 | 0 | 0
Salaries and wages | 2,796 | 0 | 0
Consumable materials | 8,402 | 0 | 0
Electricity costs | 553 | 0 | 0
Cash-settled share-based expense (note 12.1(a)) | 23 | 0 | 0
On mine administration | $ 1,344 | $ 0 | $ 0

X
- Definition The amount of expense arising from cash-settled share-based payment transactions. + References No definition available. + Details
Name: | cmcl_ExpenseFromCashsettledSharebasedPaymentTransactions
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expense for mine administration. + References No definition available. + Details
Name: | cmcl_MineAdministrationCosts
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents production costs. + References No definition available. + Details
Name: | cmcl_ProductionCosts1
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of raw materials and consumables used due to COVID-19 pandemic. + References No definition available. + Details
Name: | cmcl_RawMaterialsAndConsumablesUsedCOVID19
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense arising from safety. + References No definition available. + Details
Name: | cmcl_SafetyExpense
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of security costs. + References No definition available. + Details
Name: | cmcl_SecurityCosts
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The costs related to solar operations and maintenance services. + References No definition available. + Details
Name: | cmcl_SolarOperationsAndMaintenanceServicesCosts
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 all expenses directly or indirectly attributed to the goods or services sold. Attributed expenses include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, such as depreciation and maintenance of factory buildings and equipment used in the production process, unallocated production overheads, and abnormal amounts of production costs of inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_99&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 103 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_103&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_CostOfSales
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2023-01-01 -Paragraph 24 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2023-en-r&anchor=para_24_b&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of raw materials and consumables used in the production process or in the rendering of services. [Refer: Current raw materials] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_102&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_99&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_RawMaterialsAndConsumablesUsed
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense arising from purchased utilities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_UtilitiesExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition A class of employee benefits expense that represents wages and salaries. [Refer: Employee benefits expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 9 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_9&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_WagesAndSalaries
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount recognised resulting from the write-down of inventories to net realisable value or reversals of those write-downs. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_98_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_WritedownsReversalsOfInventories
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_CounterpartiesAxis=cmcl_BlanketMineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=cmcl_BilboesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |