Capital Stock (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of Stock by Class [Table Text Block]

		2018		2017
Authorized -
200,000,000 common shares of $0.00001 par value
20,000,000 preferred shares of $0.00001 par value
Issued -
93,477,473 (December 31, 2017: 67,031,467) common shares	$	1	$	1

Schedule Of Proceeds Of Equity Components Based On Fair Value [Table Text Block]

		Gross proceeds		Transaction costs		Net proceeds
Common stock	$	10,926	$	1,739	$	9,187
Warrants		1,708		272		1,436
	$	12,634	$	2,011	$	10,623