XML 67 R53.htm IDEA: XBRL DOCUMENT
v3.24.3

Note 5 - Blanket Zimbabwe Indigenisation Transaction (Details Textual) - USD ($) $ in Thousands |  |  |  |  | 6 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jan. 20, 2020 | Nov. 05, 2018 | Jun. 23, 2017 | Feb. 20, 2012 | Jun. 30, 2024 | Sep. 30, 2024
Statement Line Items [Line Items] |  |  |  |  |  |  |
Proportion of ownership interests held by non-controlling interests |  |  |  |  | 51.00% |  | 36.00%
Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity attributable to owners of parent |  |  |  |  | $ 30,090 |  |
Non-controlling interest, non-refundable donation |  |  |  |  | $ 1,000 |  |
Dividend loans, Percentage of dividend as payment of interest |  |  |  | 80.00% | 80.00% |  |
Proportion of dividends declared accruing unconditionally |  |  |  |  | 20.00% |  |
Borrowings, interest rate |  |  |  | 7.25% |  |  |
Percentage of net assets recognised as NCI |  | 13.20% |  |  | 16.20% |  |
Proportion of ownership interest acquired |  |  | 15.00% |  |  |  |
Number of instruments or interests issued or issuable for cancellation of loan (in shares) |  | 727,266 |  |  |  |  |
Non-controlling interests derecognized |  | $ 3,600 |  |  |  |  |
Reserve of share-based payments, increase (decrease) during period |  | $ 2,247 |  |  |  |  |
Proportion of ownership interest in subsidiary |  | 64.00% |  |  |  |  |
NIEEF [member] |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |
Proportion of ownership interests held by non-controlling interests |  |  |  |  | 16.00% |  | 16.00%
Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity attributable to owners of parent |  |  |  |  | $ 11,740 |  |
Proportion of ownership interest sold |  |  |  |  | 16.00% |  |
Non-controlling interests recognised, dividends declared accruing unconditionally |  |  |  |  | 20.00% |  |
Fremiro [member] |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |
Proportion of ownership interests held by non-controlling interests |  |  |  |  | 15.00% |  |
Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity attributable to owners of parent |  |  |  |  | $ 11,010 |  |
Proportion of ownership interest sold |  |  |  |  | 15.00% |  |
Non-controlling interests recognised, dividends declared accruing unconditionally |  |  |  |  | 20.00% |  |
Non-controlling interests recognised, portion recognised to the extent net asset value exceeds faciliation loans |  |  |  |  | 80.00% |  |
BETS [member] |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |
Proportion of ownership interests held by non-controlling interests | [1] |  |  |  |  |  | 10.00%
Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity attributable to owners of parent |  |  |  |  | $ 7,340 |  |
Proportion of ownership interest sold |  |  |  |  | 10.00% | 10.00% |
Community Trust [member] |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |
Proportion of ownership interests held by non-controlling interests |  |  |  |  | 10.00% |  | 10.00%
Proportion of ownership interest sold |  |  |  |  | 10.00% |  |
Non-controlling interests recognised, dividends declared accruing unconditionally |  |  |  |  | 100.00% |  |
Non-controlling interests recognised, portion recognised to the extent net asset value exceeds faciliation loans |  |  |  |  | 80.00% |  |
Non-controlling interests recognised, dividends declared accruing unconditionally employee participation |  |  |  |  | 20.00% |  |
[1] | Accounted for under IAS19 Employee Benefits.

X
- Definition Percentage of dividends paid to determine amount of interest to pay on dividend loans. + References No definition available. + Details
Name: | cmcl_DividendLoansPercentageOfDividendAsPaymentOfInterest
Namespace Prefix: | cmcl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of non-refundable donation paid by a subsidiary to a community trust. + References No definition available. + Details
Name: | cmcl_NoncontrollingInterestNonrefundableDonation
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents amount of non-controlling interest derecognized. + References No definition available. + Details
Name: | cmcl_NoncontrollingInterestsDerecognized
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition NCI are recognised on the portion of shareholding upon which dividends declared accrue unconditionally to equity holders. + References No definition available. + Details
Name: | cmcl_NoncontrollingInterestsRecognisedDividendsDeclaredAccruingUnconditionally
Namespace Prefix: | cmcl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition NCI are recognised on the portion of shareholding upon which dividends declared accrue unconditionally to equity holders with employee participation. + References No definition available. + Details
Name: | cmcl_NoncontrollingInterestsRecognisedDividendsDeclaredAccruingUnconditionallyEmployeeParticipation
Namespace Prefix: | cmcl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of NCI recognised to the extent that their attributable share of the net asset value of a subsidiary exceeds the balance on the facilitation loans including interest. + References No definition available. + Details
Name: | cmcl_NoncontrollingInterestsRecognisedPortionRecognisedToTheExtentNetAssetValueExceedsFaciliationLoans
Namespace Prefix: | cmcl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of instruments or interests issued or issuable for the cancellation of facilitation loan. + References No definition available. + Details
Name: | cmcl_NumberOfInstrumentsOrInterestsIssuedOrIssuableForCancellationOfLoan
Namespace Prefix: | cmcl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of net assets recognised as non-controlling interest. + References No definition available. + Details
Name: | cmcl_PercentageOfNetAssetsRecognisedAsNCI
Namespace Prefix: | cmcl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of dividends declared that accrue unconditionally to equity holders. + References No definition available. + Details
Name: | cmcl_ProportionOfDividendsDeclaredAccruingUnconditionally
Namespace Prefix: | cmcl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of ownership interests acquired during the period. + References No definition available. + Details
Name: | cmcl_ProportionOfOwnershipInterestAcquired
Namespace Prefix: | cmcl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of ownership interests sold during the period. + References No definition available. + Details
Name: | cmcl_ProportionOfOwnershipInterestSold
Namespace Prefix: | cmcl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents amount of reserve of share-based payments increase (decrease) during period. + References No definition available. + Details
Name: | cmcl_ReserveOfSharebasedPaymentsIncreaseDecreaseDuringPeriod
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_7&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_BorrowingsInterestRate
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The increase (decrease) in equity attributable to owners of the parent through changes in ownership interests in subsidiaries that do not result in loss of control. [Refer: Total for all subsidiaries [member]; Equity attributable to owners of parent] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 18 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_18&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControlEquityAttributableToOwnersOfParent
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 19B -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of ownership interests in a subsidiary held by non-controlling interests. [Refer: Total for all subsidiaries [member]; Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 12 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_12_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=cmcl_NIEEFMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=cmcl_FremiroMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=cmcl_BETSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=cmcl_CommunityTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |