Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total		Common Shares [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	[1]
Balance at Dec. 31, 2015	$ 61,034		$ 148,634	$ 33,083	$ (119,693)	$ (990)
Balance (in Shares) at Dec. 31, 2015			14,385,336
Net loss	(22,997)				(22,997)
Issuance of common shares, net of issuance costs	23,832		$ 23,832
Issuance of common shares, net of issuance costs (in Shares)			3,450,000
Stock option compensation expense	2,186			2,186
Issued pursuant to exercise of stock options	132		$ 780	(657)	9
Issued pursuant to exercise of stock options (in Shares)			95,254
Fair value adjustment upon reclassification of stock options	(286)			(286)
Balance at Dec. 31, 2016	63,901		$ 173,246	34,326	(142,681)	(990)
Balance (in Shares) at Dec. 31, 2016			17,930,590
Net loss	(7,517)				(7,517)
Stock option compensation expense	637			637
Issued pursuant to exercise of stock options	$ 174		$ 583	(406)	(3)
Issued pursuant to exercise of stock options (in Shares)	67,921	[2]	66,090
Balance at Mar. 31, 2017	$ 57,195		$ 173,829	$ 34,557	$ (150,201)	$ (990)
Balance (in Shares) at Mar. 31, 2017			17,996,680

[1] Our accumulated other comprehensive loss is entirely related to historical cumulative translation adjustments from the application of U.S. dollar reporting when the functional currency of the Company was the Canadian dollar.

[2] During the three months ended March 31, 2017, 62,397 stock options were exercised for the same number of common shares for cash (three months ended March 31, 2016 – 16,246). In the same period, the Company issued 3,693 common shares (three months ended March 31, 2016 – nil) for the cashless exercise of 5,524 stock options (three months ended March 31, 2016 – nil).