XML 116 R99.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Note 21 - Earnings Per Share - Earnings Per Share Computations (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Statement Line Items [Line Items] |  |  |
Issued shares at beginning of year (in shares) | 52,787,428 | 52,078,908 | 52,117,908
Share consolidation (note 19) (in shares) | (42,135,492) | (41,663,126) | (41,694,326)
Issued shares post consolidation (in shares) | 10,651,936 | 10,415,782 | 10,423,582
Weighted average shares repurchased (in shares) | (60,978) |  |
Weighted average cancellation during the year (in shares) |  |  | (4,565)
Weighted average shares issued (in shares) | 16,924 | 41,460 |
Weighted average number of shares at December 31 (in shares) | 10,607,882 | 10,457,242 | 10,419,017
Profit attributable to shareholders | $ 9,384 | $ 8,526 | $ 4,779
Blanket Mine Employee Trust Adjustment | (210) | (238) | (100)
Adjusted profit attributable to shareholders | $ 9,174 | $ 8,288 | $ 4,679
Basic earnings per share - $ (in dollars per share) | $ 0.86 | $ 0.79 | $ 0.45
Weighted average shares at December 31 (in shares) | 10,607,882 | 10,457,242 | 10,419,017
Effect of dilutive options (in shares) | 9,622 | 23,449 | 21,634
Weighted average number of shares (diluted) at December 31 (in shares) | 10,617,504 | 10,480,691 | 10,440,651
Diluted earnings - per share ($) (in dollars per share) | $ 0.86 | $ 0.79 | $ 0.45

X
- Definition The adjusted amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator). + References No definition available. + Details
Name: | cmcl_AdjustedBasicEarningsLossPerShare
Namespace Prefix: | cmcl_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number shares adjusted during the period from share consolidation agreements. + References No definition available. + Details
Name: | cmcl_AdjustmentFromShareConsolidation
Namespace Prefix: | cmcl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Adjustment to profit (loss) for employee trust to calculate profit (loss) attributable to ordinary equity holders of the parent equity. + References No definition available. + Details
Name: | cmcl_AdjustmentToProfitLossForEmployeeTrust
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The profit (loss) attributable to owners of the parent after the employee trust adjustment. + References No definition available. + Details
Name: | cmcl_ProfitLossAttributableToOwnersOfParentAfterEmployeeTrustAdjustment
Namespace Prefix: | cmcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition The number of weighted average shares cancelled during the period. + References No definition available. + Details
Name: | cmcl_WeightedAverageNumberOfSharesCancelled
Namespace Prefix: | cmcl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of ordinary shares issued during the period multiplied by a time-weighting factor. + References No definition available. + Details
Name: | cmcl_WeightedAverageNumberOfSharesIssued
Namespace Prefix: | cmcl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of ordinary shares post consolidation during the period multiplied by a time-weighting factor. + References No definition available. + Details
Name: | cmcl_WeightedAverageNumberOfSharesPostConsolidation
Namespace Prefix: | cmcl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of ordinary shares pre-consolidation during the period multiplied by a time-weighting factor. + References No definition available. + Details
Name: | cmcl_WeightedAverageNumberOfSharesPreconsolidation
Namespace Prefix: | cmcl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of ordinary shares repurchased during the period multiplied by a time-weighting factor. + References No definition available. + Details
Name: | cmcl_WeightedAverageNumberOfSharesRepurchased
Namespace Prefix: | cmcl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2017-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2017-03-01&anchor=para_70_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_AdjustedWeightedAverageShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2017-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2017-03-01&anchor=para_66&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DilutedEarningsLossPerShare
Namespace Prefix: | ifrs-full_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of dilutive potential ordinary shares that relate to the assumed exercise of the entity's share options. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 33 -IssueDate 2017-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2017-03-01&anchor=para_70_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The profit (loss) attributable to owners of the parent. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 81B -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_81B_a_ii&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ProfitLossAttributableToOwnersOfParent
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2017-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2017-03-01&anchor=para_70_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_WeightedAverageShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration