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Note 27 - Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2017
Statement Line Items [Line Items] |
Disclosure of credit risk exposure [text block] |
Carrying amount |  | December 31, 2017 |  |  | December 31, 2016 |
Zimbabwe |  |  | 2,015 |  |  |  | 1,523 |
Disclosure of maturity analysis for non-derivative financial liabilities [text block] |
December 31, 2017 |  | Carrying amount |  |  | 12 months or less |  |  | 1-2 Years |
Trade and other payables |  |  | 9,581 |  |  |  | 9,581 |  |  |  | - |
Term loan facility |  |  | 1,486 |  |  |  | 1,486 |  |  |  | - |
Overdraft |  |  | 311 |  |  |  | 311 |  |  |  | - |
|  |  | 11,378 |  |  |  | 11,378 |  |  |  | - |
December 31, 2016 |  | Carrying amount |  |  | 12 months or less |  |  | 1-2 Years |
Trade and other payables |  |  | 5,052 |  |  |  | 5,052 |  |  |  | - |
Term loan facility |  |  | 2,987 |  |  |  | 1,410 |  |  |  | 1,577 |
|  |  | 8,039 |  |  |  | 6,462 |  |  |  | 1,577 |
Sensitivity analysis for types of market risk [text block] |
|  | 2017 USD‘000 |  |  | 2016 USD‘000 |
|  | Functional currency |  |  | Functional currency |
|  | ZAR |  |  | USD |  |  | ZAR |  |  | USD |
Cash and cash equivalents |  |  | 57 |  |  |  | 601 |  |  |  | 457 |  |  |  | 265 |
Trade and other payables |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 43 |
|  |  | 57 |  |  |  | 601 |  |  |  | 457 |  |  |  | 308 |
|  | 2017 USD‘000 |  |  | 2016 USD’000 |
|  | Functional currency |  |  | Functional currency |
|  | ZAR |  |  | USD |  |  | ZAR |  |  | USD |
Cash and cash equivalents |  |  | 3 |  |  |  | 30 |  |  |  | 23 |  |  |  | 13 |
Trade and other payables |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 2 |
|  | 2017 |  |  | 2016 |
Term loan |  |  | 1,486 |  |  |  | 2,987 |
Net cash and cash equivalents |  |  | 12,756 |  |  |  | 14,335 |
|  | 2017 |  |  | 2016 |
Increase by 100 basis points |  |  | (15 | ) |  |  | (30 | )
Decrease by 100 basis points |  |  | 15 |  |  |  | 30 |
Sensitivity analysis – Net cash and cash equivalents |  | 2017 |  |  | 2016 |
Increase by 100 basis points |  |  | 128 |  |  |  | 143 |
Decrease by 100 basis points |  |  | (128 | ) |  |  | (143 | )

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- Definition The disclosure of the credit risk exposure. Credit risk exposure is the credit risk inherent in an entity’s financial assets and commitments to extend credit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 35M -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_35M&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The disclosure of a maturity analysis for non-derivative financial liabilities (including issued financial guarantee contracts) that shows the remaining contractual maturities. [Refer: Derivative financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 39 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_39_a&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The disclosure of the sensitivity analysis for types of market risk to which the entity is exposed, showing how profit or loss and equity would have been affected by changes in the relevant risk variable that were reasonably possible at that date. [Refer: Market risk [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 40 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_40_a&doctype=Standard -URIDate 2017-03-09 + Details
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