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Note 31 - Group Entities (Tables) | 12 Months Ended
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Dec. 31, 2017
Statement Line Items [Line Items] |
Disclosure of interests in subsidiaries [text block] |
|  | Functional currency |  | Country of incorporation |  | Legal shareholding |  | Intercompany balances with Holding company |
|  |  |  |  |  | 2017 |  | 2016 |  | 2017 |  |  | 2016 |
Subsidiaries of the Company |  |  |  |  |  | % |  | % |  |  |  |  |  |  |  |
Caledonia Holdings Zimbabwe (Private) Limited |  | USD |  | Zimbabwe |  | 100 |  | 100 |  |  | - |  |  |  | - |
Caledonia Mining Services Limited |  | USD |  | Zimbabwe |  | 100 |  | 100 |  |  | - |  |  |  | - |
Eersteling Gold Mining Company Limited |  | ZAR |  | South Africa |  | 100 |  | 100 |  |  | (12,956 | ) |  |  | (12,793 | )
Fintona Investments Proprietary Limited |  | ZAR |  | South Africa |  | 100 |  | 100 |  |  | (14,859 | ) |  |  | (14,859 | )
Caledonia Mining South Africa Proprietary Limited |  | ZAR |  | South Africa |  | 100 |  | 100 |  |  | (941 | ) |  |  | (87 | )
Greenstone Management Services Holdings Limited |  | USD |  | United Kingdom |  | 100 |  | 100 |  |  | 20,879 |  |  |  | 13,527 |
Caledonia Holdings (Africa) Limited |  | USD |  | Barbados |  | 100 |  | 100 |  |  | - |  |  |  | - |
Blanket (Barbados) Holdings Limited |  | USD |  | Barbados |  | 100 |  | 100 |  |  | - |  |  |  | - |
Blanket Mine (1983) (Private) Limited (3) |  | USD |  | Zimbabwe |  | (2) 49 |  | (2) 49 |  |  | - |  |  |  | - |
Blanket Employee Trust Services (Private) Limited (BETS) (1) |  | USD |  | Zimbabwe |  | - |  | - |  |  | - |  |  |  | - |

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- Definition The disclosure of interests in subsidiaries. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph 2 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_2_b_i&doctype=Standard -URIDate 2017-03-09 + Details
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