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, 2014	$ 72,779		$ 147,157	$ 30,346	$ (103,734)	$ (990)
Balance (in Shares) at Dec. 31, 2014			14,181,333
Net loss	(15,752)				(15,752)
Stock option compensation expense	2,077			2,077
Issued pursuant to exercise of stock options	278		$ 1,477	(992)	(207)
Issued pursuant to exercise of stock options (in Shares)			204,003
Fair value adjustment upon reclassification of stock options	1,652			1,652
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	(16,993)				(16,993)
Issuance of common shares,net of issuance costs (note 7a)	23,832		$ 23,832
Issuance of common shares, net of issuance costs (note 7a) (in Shares)			3,450,000
Stock option compensation expense	1,638			1,638
Issued pursuant to exercise of stock options	$ 84		$ 420	(318)	(18)
Issued pursuant to exercise of stock options (in Shares)	72,541	[2]	57,597
Fair value adjustment upon reclassification of stock options	$ (286)			(286)
Balance at Sep. 30, 2016	$ 69,309		$ 172,886	$ 34,117	$ (136,704)	$ (990)
Balance (in Shares) at Sep. 30, 2016			17,892,933

[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 nine months ended September 30, 2016, 30,176 stock options were exercised for the same number of common shares for cash (nine months ended September 30, 2015 – 62,469). In the same period, the Company issued 27,421 common shares (nine months ended September 30, 2015 – 100,465) for the cashless exercise of 42,365 stock options (nine months ended September 30, 2015 – 147,381).