Property and equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

			Accumulated		Net book
2016	Cost		amortization		value
Laboratory equipment	$	625	$	625	$	-
Production equipment		97		48		49
Software		161		85		76
Computer equipment		216		177		39
Leasehold improvements		399		107		292
Furniture and office equipment		187		95		92
	$	1,685	$	1,137	$	548

			Accumulated		Net book
2015	Cost		amortization		value
Laboratory equipment	$	625	$	598	$	27
Production equipment		96		30		66
Software		152		57		95
Computer equipment		240		149		91
Leasehold improvements		399		70		329
Furniture and office equipment		189		57		132
	$	1,701	$	961	$	740