Other financial liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Statement [Line Items]

Disclosure of detailed information about other financial liabilities explanatory [Table Text Block]

		Dec. 31, 2017		Dec. 31, 2016
Current
Derivative liabilities	$	16,140	$	10,682
Warrants at fair value through profit and loss		6,961		-
Contingent consideration - gold price option		732		-
Other financial liabilities at amortized cost		2,360		2,813
Embedded derivatives		297		-
		26,760		13,495
Non-current
Contingent consideration - gold price option		-		570
Warrants at fair value through profit and loss		-		7,588
Other financial liabilities at amortized cost		19,938		20,185
Embedded derivatives		863		-
		20,801		28,343
	$	47,561	$	41,838