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22. SUPPLEMENTAL FINANCIAL INFORMATION (Details 2) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | $ (858) | $ (811)
Interest income |  |
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | 203 | 177
Interest expense |  |
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | (5) | (3)
Accretion expense-reclamation obligations |  |
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | (999) | (903)
Accretion expense-post-employment benefits |  |
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | $ (57) | $ (82)

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- Definition The amount of costs associated with financing activities of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2016-01-13 -Paragraph 82 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2016-03-30&anchor=para_82_b&doctype=Standard -URIDate 2016-03-31 + Details
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