Intangible assets - computer software

12 Months Ended

Dec. 31, 2017

Statement [Line Items]

Intangible assets - computer software [text block]

10. Intangible assets - computer software

		Dec. 31, 2017		Dec. 31, 2016
Cost
Balance, beginning of year	$	16,998	$	16,179
Additions		1,203		407
Effects of movement in exchange rates		968		412
Balance, end of year		19,169		16,998
Accumulated amortization
Balance, beginning of year		10,384		7,320
Amortization for the year		2,541		2,882
Effects of movement in exchange rates		669		182
Balance, end of year		13,594		10,384
Net book value	$	5,575	$	6,614