Consolidated Statement of Shareholders' Equity $ in Thousands, $ in Thousands	Common Stock [Member] USD ($) shares	Additional Paid-In Capital [Member] USD ($) shares	Accumulated Deficit [Member] USD ($)	Accumulated Other Comprehensive Loss [Member] USD ($)	USD ($) shares	CAD ($) shares
Beginning Balance at Dec. 31, 2016	$ 1	$ 23,700	$ (17,737)	$ (1,019)	$ 4,945
Beginning Balance (Shares) at Dec. 31, 2016 | shares	64,812,020
Other comprehensive loss (income)				382	382
Warrants exercised		1,176			1,176
Warrants exercised (Shares) | shares	2,084,447
Options exercised		$ 62			62
Options exercised (in shares) | shares	135,000	135,000
Stock-based compensation		$ 315			315
Net loss for the period			(3,051)		(3,051)
Ending Balance at Dec. 31, 2017	$ 1	25,253	(20,788)	(637)	3,829
Ending Balance (Shares) at Dec. 31, 2017 | shares	67,031,467
Other comprehensive loss (income)				(529)	(529)
Common stock issued, net of transaction costs of $1,906		11,647			11,647
Common stock issued, net of transaction costs of $1,906 (Shares) | shares	22,017,295
Warrants issued, net of transaction costs of $322		1,873			1,873
Agents' warrants issued		330			330
Interest paid by issuance of common shares		231			$ 231	$ 304
Interest paid by issuance of common shares (Shares) | shares	307,069				307,069	307,069
Conversion of convertible debentures		16			$ 16
Conversion of convertible debentures (in shares) | shares	17,036
Warrants exercised		2,295			2,295
Warrants exercised (Shares) | shares	4,044,606
Options exercised		$ 33			33
Options exercised (in shares) | shares	60,000	60,000
Stock-based compensation		$ 370			370
Net loss for the period			(10,108)		(10,108)
Ending Balance at Dec. 31, 2018	$ 1	$ 42,048	$ (30,896)	$ (1,166)	$ 9,987
Ending Balance (Shares) at Dec. 31, 2018 | shares	93,477,473