INCOME TAXES (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax [Line Items]
Net Income (Loss) Attributable to Parent									$ (43,698)	$ (52,859)	$ (20,286)
Net loss before tax	(10,387)	(8,617)	(11,038)	(13,656)	(11,232)	(29,398)	(8,012)	(4,217)	(43,698)	(52,882)	(20,247)
Statutory combined US federal and state tax rate (2012 - statutory combined Canadian federal and provincial tax rate)									39.83%	39.83%	26.90%
Income tax expense (benefit)									0	(23)	39
United States Federal and State [Member]
Income Tax [Line Items]
Statutory federal and provincial taxes									(17,405)
Effect of change in valuation allowance									12,273
Non-deductible share-based compensation									930
Non-deductible warrant expenses for tax purposes									1,799
Tax credits									(180)
Share issue costs - temporary difference									(184)
Share issue costs - permanent difference									0
Effect of foreign jurisdiction tax expense									0
Differential in income tax rates of foreign subsidiary									3,047
Other differences									(280)
Income tax expense (benefit)									0
Canadian Federal and Provincial [Member]
Income Tax [Line Items]
Statutory federal and provincial taxes										(21,063)	(5,446)
Effect of change in valuation allowance										8,537	5,145
Non-deductible share-based compensation										1,085	539
Non-deductible warrant expenses for tax purposes										8,403	0
Tax credits										(96)	(70)
Share issue costs - temporary difference										(184)	(183)
Share issue costs - permanent difference										206	0
Effect of foreign jurisdiction tax expense										0	39
Differential in income tax rates of foreign subsidiary										3,059	0
Other differences										30	15
Income tax expense (benefit)										$ (23)	$ 39