XML 81 R62.htm IDEA: XBRL DOCUMENT
v3.19.1

Note 26 - Share-based Expenses (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Statement Line Items [Line Items] |
Explanation of effect of share-based payments on entity's profit or loss [text block] |
|  | Note |  |  | 2018 |  |  | 2017 |  |  | 2016 |
Share option programmes |  | 26.1 (a) |  |  |  | 14 |  |  |  | 29 |  |  |  | 170 |
Facilitation and advanced dividend loan modification |  | 26.1 (b) |  |  |  | — |  |  |  | 806 |  |  |  | — |
|  |  |  |  |  | 14 |  |  |  | 835 |  |  |  | 170 |
|  | Note |  |  | 2018 |  |  | 2017 |  |  | 2016 |
Restricted Share Units and Performance Share Units |  | 26.2.(a) |  |  |  | 218 |  |  |  | 853 |  |  |  | 618 |
Caledonia Mining South Africa employee incentive scheme |  | 26.2.(b) |  |  |  | 97 |  |  |  | 123 |  |  |  | — |
|  |  |  |  |  | 315 |  |  |  | 976 |  |  |  | 618 |
Disclosure of range of exercise prices of outstanding share options [text block] |
Number of Options |  |  | Exercise Price |  |  | Expiry Date
|  |  | Canadian $ |  |  |
| 5,000 |  |  |  | 4.00 |  |  | Oct 8, 2020
| 18,000 |  |  |  | 11.50 |  |  | Oct 13, 2021
| 5,000 |  |  |  | 8.10 |  |  | May 30, 2022
| 10,000 |  |  |  | 9.30 |  |  | Aug 25, 2024
| 38,000 |  |  |  |  |  |  |
Disclosure of number and weighted average exercise prices of share options [text block] |
|  | Number of Options * |  |  | Weighted Avg. Exercise Price |
|  |  |  |  | Canadian $* |
Options outstanding and exercisable at January 1, 2016 |  |  | 448,184 |  |  |  | 5.40 |
Expired or forfeited |  |  | (232,200 | ) |  |  | 6.50 |
Granted |  |  | 18,000 |  |  |  | 11.50 |
Exercised |  |  | (141,704 | ) |  |  | 4.15 |
Options outstanding and exercisable at December 31, 2016 |  |  | 92,280 |  |  |  | 5.85 |
Granted |  |  | 5,000 |  |  |  | 8.10 |
Exercised |  |  | (69,280 | ) |  |  | 4.50 |
Options outstanding and exercisable at December 31, 2017 |  |  | 28,000 |  |  |  | 9.55 |
Granted |  |  | 10,000 |  |  |  | 9.30 |
Exercised |  |  | — |  |  |  | — |
Options outstanding and exercisable at December 31, 2018 |  |  | 38,000 |  |  |  | 9.48 |
Disclosure of indirect measurement of fair value of goods or services received, share options granted during period [text block] |
Options granted |  |  | 10,000 |  |  |  | * 5,000 |  |  |  | * 18,000 |
Grant date |  |  | February 27, 2018 |  |  |  | May 30, 2018 |  |  |  | October 13, 2017 |
Risk-free interest rate |  |  | 2,86 | % |  |  | 2.40 | % |  |  | 0.53 | %
Expected stock price volatility (based on historical volatility) |  |  | 32 | % |  |  | 118 | % |  |  | 119 | %
Expected option life in years |  |  | 3 |  |  |  | 3 |  |  |  | 5 |
Exercise price |  |  | CAD 9.30 |  |  |  | * CAD 8.10 |  |  |  | * CAD 11.50 |
Share price at grant date |  |  | CAD 9.30 |  |  |  | * CAD 8.10 |  |  |  | * CAD 11.50 |
Fair value at grant date |  |  | $1.40 |  |  |  | * $5.81 |  |  |  | * $9.45 |
|  | *2018 |  |  | *2017 |
|  | RSUs |  |  | PSUs |  |  | RSUs |  |  | PSUs |
Fair value ($) |  | $ | 5.46 |  |  | $ | 5.46 |  |  | $ | 7.37 |  |  | $ | 7.17 |
Share price ($) |  | $ | 5.46 |  |  | $ | 5.46 |  |  | $ | 7.37 |  |  | $ | 7.37 |
Performance multiplier percentage |  |  | — |  |  |  | 85 | % |  |  | — |  |  |  | 94 | %
Share units granted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  | RSUs |  |  |  | PSUs |  |  |  | RSUs |  |  |  | PSUs |
Grant - January 11, 2016 |  |  | 60,645 |  |  |  | 242,579 |  |  |  | 60,645 |  |  |  | 242,579 |
Grant - March 23, 2016 |  |  | 10,965 |  |  |  | 43,871 |  |  |  | 10,965 |  |  |  | 43,871 |
Grant - June 8, 2016 |  |  | 5,117 |  |  |  | 20,470 |  |  |  | 5,117 |  |  |  | 20,470 |
Grant - January 19, 2017 |  |  | 4,443 |  |  |  | 17,774 |  |  |  | 4,443 |  |  |  | 17,774 |
RSU dividend reinvestments |  |  | 10,960 |  |  |  | — |  |  |  | 7,324 |  |  |  | — |
Total awards at December 31 |  |  | 92,130 |  |  |  | 324,694 |  |  |  | 88,494 |  |  |  | 324,694 |
Disclosure of indirect measurement of fair value of goods or services received, other equity instruments granted during period [text block] |
|  | 2018 |  |  | 2017 |
|  | Awards |
Grant - July 2017 (3 year term) |  |  | 37,330 |  |  |  | 37,330 |
Grant - August 2018 (3 year term) |  |  | 5,918 |  |  |  | — |
Awards paid out |  |  | (26,864 | ) |  |  | — |
Total awards outstanding December 31 |  |  | 16,384 |  |  |  | 37,330 |
Estimated awards expected to vest at December 31 |  |  | 100 | % |  |  | 100 | %
Faciliation and advanced dividend loans [member] |
Statement Line Items [Line Items] |
Disclosure of indirect measurement of fair value of goods or services received, other equity instruments granted during period [text block] |
Modification date |  |  | June 23, 2017 |
Blanket Mine dividend yield |  |  | 23.70% - 89.88% |
Risk free interest rate |  |  | $ swap curve |
Group market capitalisation at grant date ($’000) |  | $ | 68,436 |

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 disclosure of information about indirect, by reference to the fair value of the equity instruments granted, measurement of the fair value of goods or services received as consideration for the entity's other equity instruments (ie other than share options). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2017-01-01 -Paragraph 47 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_47_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedOtherEquityInstrumentsGrantedDuringPeriodExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of information about indirect, by reference to the fair value of the equity instruments granted, measurement of the fair value of goods or services received as consideration for the entity's share options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2017-01-01 -Paragraph 47 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_47_a&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of the number and weighted average exercise prices of share options. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2017-01-01 -Paragraph 45 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_45_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of the range of exercise prices for outstanding share options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2017-01-01 -Paragraph 45 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_45_d&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The explanation that enables users of financial statements to understand the effect of share-based payment transactions on the entity's profit (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2017-01-01 -Paragraph 50 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_50&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=cmcl_FaciliationAndAdvancedDividendLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |