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12. PROPERTY, PLANT AND EQUIPMENT (Details 2) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment, beginning | $ 187,982 | $ 188,250
Property, plant and equipment, ending | 198,480 | 187,982
Mineral properties |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment, beginning | 123,169 | 122,632
Additions | 639 | 3,586
Asset divestitures (note 5) |  | (3,427)
Impairment reversal (expense) | 246 | (2,253)
Recoveries | (149) | (1,242)
Foreign exchange | 8,679 | 3,873
Property, plant and equipment, ending | 132,584 | 123,169
Mineral properties | Cost |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment, beginning | 123,340 | 122,797
Additions | 639 | 3,586
Asset divestitures (note 5) |  | (3,427)
Impairment reversal (expense) | 246 | (2,253)
Recoveries | (149) | (1,242)
Foreign exchange | 8,691 | 3,879
Property, plant and equipment, ending | 132,767 | 123,340
Mineral properties | Accumulated depreciation/amortization |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment, beginning | (171) | (165)
Additions | 0 | 0
Asset divestitures (note 5) |  | 0
Impairment reversal (expense) | 0 | 0
Recoveries | 0 | 0
Foreign exchange | (12) | (6)
Property, plant and equipment, ending | $ (183) | $ (171)

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- Definition Adjustments for impairment loss (reversal of impairment loss) on property, plant and equipment recognised in profit or loss to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2016-01-13 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2016-03-30&anchor=para_20&doctype=Standard -URIDate 2016-03-31 + Details
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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2016-01-13 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2016-03-30&anchor=para_73_e&doctype=Standard -URIDate 2016-03-31 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2016-01-13 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2016-03-30&anchor=para_54_a&doctype=Standard -URIDate 2016-03-31 + Details
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