Accounts payable and accrued liabilities (Tables)

12 Months Ended

Dec. 31, 2016

Payables and Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

	December 31,		December 31,
	2016		2015
Trade accounts payable	$	3,924	$	3,474
Employee-related accruals		2,637		3,744
Interest payable on deferred consideration (note 11)		24		45
Other accrued liabilities		1,436		3,225
	$	8,021	$	10,488