XML 83 R69.htm IDEA: XBRL DOCUMENT
v3.24.3

Note 13 - Property, Plant and Equipment - Reconciliation of Changes in Property, Plant, and Equipment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | $ 179,649 |  |
Additions* |  | $ 6,686 | $ 9,042 | 16,122 | $ 18,161 |
Impairments |  |  |  | 0 | (878) |
Balance at end of period |  | 183,663 |  | 183,663 |  | $ 179,649
Gross carrying amount [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 248,124 | 233,826 | 233,826
Additions* | [1] |  |  | 16,122 |  | 29,606
Impairments |  |  |  |  |  | (908)
Disposals |  |  |  | (131) |  | (33)
Reallocate to assets held for sale |  |  |  |  |  | (14,301)
Reallocations between asset classes |  |  |  | 0 |  | 0
Foreign exchange movement |  |  |  | 90 |  | (66)
Balance at end of period |  | 264,205 |  | 264,205 |  | 248,124
Disposals |  |  |  | 131 |  | 33
Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Impairments |  |  |  |  |  | (31)
Disposals |  |  |  | 97 |  |
Foreign exchange movement |  |  |  | 58 |  | (41)
Balance at beginning of period |  |  |  | 68,475 | 54,843 | 54,843
Depreciation |  |  |  | 12,106 |  | 14,486
Accumulated depreciation for assets reallocated to assets held for sale |  |  |  |  |  | (782)
Disposals |  |  |  | (97) |  |
Balance at end of period |  | 80,542 |  | 80,542 |  | 68,475
Land and buildings [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 7,324 |  |
Balance at end of period |  | 6,494 |  | 6,494 |  | 7,324
Land and buildings [member] | Gross carrying amount [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 16,686 | 15,194 | 15,194
Additions* | [1] |  |  | 0 |  | 0
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  | 0
Reallocate to assets held for sale |  |  |  |  |  | 0
Reallocations between asset classes |  |  |  | 0 |  | 1,492
Foreign exchange movement |  |  |  | 0 |  | 0
Balance at end of period |  | 16,686 |  | 16,686 |  | 16,686
Disposals |  |  |  | (0) |  | (0)
Land and buildings [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  |
Foreign exchange movement |  |  |  | 0 |  | 0
Balance at beginning of period |  |  |  | 9,362 | 8,350 | 8,350
Depreciation |  |  |  | 830 |  | 1,012
Accumulated depreciation for assets reallocated to assets held for sale |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  |
Balance at end of period |  | 10,192 |  | 10,192 |  | 9,362
Right-of-use assets [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 156 |  |
Balance at end of period |  | 63 |  | 63 |  | 156
Right-of-use assets [member] | Gross carrying amount [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 501 | 525 | 525
Additions* | [1] |  |  | 0 |  | 0
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  | 0
Reallocate to assets held for sale |  |  |  |  |  | 0
Reallocations between asset classes |  |  |  | 0 |  | 0
Foreign exchange movement |  |  |  | 22 |  | (24)
Balance at end of period |  | 523 |  | 523 |  | 501
Disposals |  |  |  | (0) |  | (0)
Right-of-use assets [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  |
Foreign exchange movement |  |  |  | 20 |  | (9)
Balance at beginning of period |  |  |  | 345 | 230 | 230
Depreciation |  |  |  | 95 |  | 124
Accumulated depreciation for assets reallocated to assets held for sale |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  |
Balance at end of period |  | 460 |  | 460 |  | 345
Mining assets [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 100,592 |  |
Balance at end of period |  | 109,423 |  | 109,423 |  | 100,592
Mining assets [member] | Gross carrying amount [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 118,398 | 82,154 | 82,154
Additions* | [1] |  |  | 128 |  | 0
Impairments |  |  |  |  |  | (872)
Disposals |  |  |  | 0 |  | 0
Reallocate to assets held for sale |  |  |  |  |  | 0
Reallocations between asset classes |  |  |  | 14,048 |  | 37,116
Foreign exchange movement |  |  |  | 0 |  | 0
Balance at end of period |  | 132,574 |  | 132,574 |  | 118,398
Disposals |  |  |  | (0) |  | (0)
Mining assets [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Impairments |  |  |  |  |  | (21)
Disposals |  |  |  | 0 |  |
Foreign exchange movement |  |  |  | 0 |  | 0
Balance at beginning of period |  |  |  | 17,806 | 12,368 | 12,368
Depreciation |  |  |  | 5,345 |  | 5,459
Accumulated depreciation for assets reallocated to assets held for sale |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  |
Balance at end of period |  | 23,151 |  | 23,151 |  | 17,806
Assets under construction and decommissioning assets [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 34,842 |  |
Balance at end of period |  | 36,443 |  | 36,443 |  | 34,842
Assets under construction and decommissioning assets [member] | Gross carrying amount [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 35,628 | 46,453 | 46,453
Additions* | [1] |  |  | 15,151 |  | 28,276
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  | 0
Reallocate to assets held for sale |  |  |  |  |  | 0
Reallocations between asset classes |  |  |  | (13,504) |  | (39,099)
Foreign exchange movement |  |  |  | 24 |  | (2)
Balance at end of period |  | 37,299 |  | 37,299 |  | 35,628
Disposals |  |  |  | (0) |  | (0)
Assets under construction and decommissioning assets [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  |
Foreign exchange movement |  |  |  | 0 |  | 0
Balance at beginning of period |  |  |  | 786 | 693 | 693
Depreciation |  |  |  | 70 |  | 93
Accumulated depreciation for assets reallocated to assets held for sale |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  |
Balance at end of period |  | 856 |  | 856 |  | 786
Plant and equipment [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 35,625 |  |
Balance at end of period |  | 30,400 |  | 30,400 |  | 35,625
Plant and equipment [member] | Gross carrying amount [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 71,445 | 70,485 | 70,485
Additions* | [1] |  |  | 790 |  | 538
Impairments |  |  |  |  |  | (36)
Disposals |  |  |  | 0 |  | (33)
Reallocate to assets held for sale |  |  |  |  |  | 0
Reallocations between asset classes |  |  |  | (544) |  | 491
Foreign exchange movement |  |  |  | 0 |  | 0
Balance at end of period |  | 71,691 |  | 71,691 |  | 71,445
Disposals |  |  |  | (0) |  | 33
Plant and equipment [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Impairments |  |  |  |  |  | (10)
Disposals |  |  |  | 0 |  |
Foreign exchange movement |  |  |  | 0 |  | 0
Balance at beginning of period |  |  |  | 35,820 | 29,257 | 29,257
Depreciation |  |  |  | 5,471 |  | 6,573
Accumulated depreciation for assets reallocated to assets held for sale |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  |
Balance at end of period |  | 41,291 |  | 41,291 |  | 35,820
Fixtures and fittings [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 606 |  |
Balance at end of period |  | 533 |  | 533 |  | 606
Fixtures and fittings [member] | Gross carrying amount [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 1,861 | 1,563 | 1,563
Additions* | [1] |  |  | 53 |  | 335
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | (3) |  | 0
Reallocate to assets held for sale |  |  |  |  |  | 0
Reallocations between asset classes |  |  |  | 0 |  | 0
Foreign exchange movement |  |  |  | 41 |  | (37)
Balance at end of period |  | 1,952 |  | 1,952 |  | 1,861
Disposals |  |  |  | 3 |  | (0)
Fixtures and fittings [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | 2 |  |
Foreign exchange movement |  |  |  | 35 |  | (30)
Balance at beginning of period |  |  |  | 1,255 | 1,100 | 1,100
Depreciation |  |  |  | 131 |  | 185
Accumulated depreciation for assets reallocated to assets held for sale |  |  |  |  |  | 0
Disposals |  |  |  | (2) |  |
Balance at end of period |  | 1,419 |  | 1,419 |  | 1,255
Motor vehicles [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 504 |  |
Balance at end of period |  | 307 |  | 307 |  | 504
Motor vehicles [member] | Gross carrying amount [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 3,605 | 3,314 | 3,314
Additions* | [1] |  |  | 0 |  | 294
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | (128) |  | 0
Reallocate to assets held for sale |  |  |  |  |  | 0
Reallocations between asset classes |  |  |  | 0 |  | 0
Foreign exchange movement |  |  |  | 3 |  | (3)
Balance at end of period |  | 3,480 |  | 3,480 |  | 3,605
Disposals |  |  |  | 128 |  | (0)
Motor vehicles [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | 95 |  |
Foreign exchange movement |  |  |  | 3 |  | (2)
Balance at beginning of period |  |  |  | 3,101 | 2,845 | 2,845
Depreciation |  |  |  | 164 |  | 258
Accumulated depreciation for assets reallocated to assets held for sale |  |  |  |  |  | 0
Disposals |  |  |  | (95) |  |
Balance at end of period |  | 3,173 |  | 3,173 |  | 3,101
Solar plant [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period |  |  |  | 0 |  |
Balance at end of period |  | 0 |  | 0 |  | 0
Solar plant [member] | Gross carrying amount [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Balance at beginning of period | [2] |  |  | 0 | 14,138 | 14,138
Additions* | [1],[2] |  |  | 0 |  | 163
Impairments | [2] |  |  |  |  | 0
Disposals | [2] |  |  | 0 |  | 0
Reallocate to assets held for sale | [2] |  |  |  |  | (14,301)
Reallocations between asset classes | [2] |  |  | 0 |  | 0
Foreign exchange movement | [2] |  |  | 0 |  | 0
Balance at end of period | [2] | 0 |  | 0 |  | 0
Disposals | [2] |  |  | (0) |  | (0)
Solar plant [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |
Impairments |  |  |  |  |  | 0
Disposals |  |  |  | 0 |  |
Foreign exchange movement |  |  |  | 0 |  | 0
Balance at beginning of period |  |  |  | 0 | $ 0 | 0
Depreciation |  |  |  | 0 |  | 782
Accumulated depreciation for assets reallocated to assets held for sale |  |  |  |  |  | (782)
Disposals |  |  |  | 0 |  |
Balance at end of period |  | $ 0 |  | $ 0 |  | $ 0
[1] | Included in additions is the change in estimate for the decommissioning asset of ($722) (2023: $1,962) due to change in the Life of Mine (“LoM”) estimate to 2041.
[2] | The solar plant was fully commissioned on February 2, 2023 and the sale agreement between Caledonia Mining Corporation Plc and Caledonia Mining Services (Private) Limited was concluded for the sale of the solar plant. Depreciation on the solar plant commenced on February 2, 2023 and the power purchase agreement, between Caledonia Mining Services (Private) Limited and Blanket Mine, became effective. From September 28, 2023 the solar plant is classified as held for sale. In December 2022, the Caledonia board approved a proposal for Caledonia Mining Services (Private) Limited (which owns the solar plant) to issue loan notes pursuant to a loan note instrument (“bonds”) up to a value of $12 million. The decision was taken in order to optimise the capital structure of the Group and provide additional debt instruments to the Zimbabwean financial market. Refer to note 21.1 for more information on these loan notes.

X
- Definition The decrease in property, plant and equipment resulting from derecognition. + References No definition available. + Details
Name: | cmcl_DecreaseFromDerecognitionOfPropertyPlantAndEquipment
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents accumulated depreciation and impairment losses for property, plant and equipment. + References No definition available. + Details
Name: | cmcl_PropertyPlantAndEquipmentAccumulatedDepreciationAndImpairmentLosses
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 additions to property, plant and equipment other than those acquired through business combinations. [Refer: Total for all business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 75 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_75_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DepreciationPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The decrease in property, plant and equipment resulting from disposals. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_ii&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DisposalsPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_v&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_98_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase (decrease) in property, plant and equipment resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause viii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_viii&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase (decrease) in financial assets resulting from transfers. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph IG20B -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_IG20B&doctype=Implementation%20Guidance -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35H&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35I -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35I_d&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase (decrease) in property, plant and equipment resulting from transfers. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_PropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_GrossCarryingAmountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_LandAndBuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_RightofuseAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_MiningAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=cmcl_AssetsUnderConstructionAndDecommissioningAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=cmcl_PlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_FixturesAndFittingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_MotorVehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=cmcl_SolarPlantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |