INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2017

INCOME TAXES

Schedule of reconciliation of reported tax expense

	For the years ended December 31,
	2017			2016			2015
Loss before income taxes	$	(22,424,293	)	$	(86,294,370	)	$	(26,563,139	)
Statutory tax rate		26.00	%		26.00	%		26.00	%
Recovery of income taxes based on the combined Canadian
federal and provincial statutory rates		(5,830,316	)		(22,436,536	)		(6,906,416	)
Share-based remuneration		650,335			468,939			1,061,468
Effect of rate change		(2,344,122	)		—			—
Foreign exchange adjustment		(28,668	)		333,276			126,654
Other permanent differences		(1,798,205	)		(8,821,908	)		(2,352,402	)
Unrecognized deferred tax benefits		9,670,642			30,531,995			8,191,467
Difference in tax rates between foreign jurisdictions and Canada		164,762			124,757			46,580
Income tax expense	$	484,428		$	200,523		$	167,351

Schedule of components of income tax expense

	For the years ended December 31,
	2017		2016		2015
Current tax	$	484,428	$	200,523	$	167,351
Deferred tax		—		—		—
Income tax expense	$	484,428	$	200,523	$	167,351

Schedule of the unrecognized deferred tax assets

	For the years ended December 31,
Deferred tax assets	2017		2016			2015
Investment tax credits	$	3,108,576	$	2,689,744		$	3,454,503
Capital assets		500,445		328,039			212,311
Share issue expenses		1,774,820		772,687			999,066
Non-capital loss carry forwards		56,627,473		22,828,376			15,639,367
Foreign exchange		5,500		(12,388	)		1,093
Research and development expenditures		265,260		68,037			3,523,925
Reserve for legal damages		—		28,205,068			—
Deferred compensation		31,387		50,454			29,907
	$	62,313,461	$	54,930,017		$	23,860,172