INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2018

INCOME TAXES

Schedule of reconciliation of reported tax expense

	For the years ended
	December 31,
	2018			2017			2016
Loss before income taxes	$	(107,935,775)		$	(22,424,293)		$	(86,294,370)
Statutory tax rate		27.00	%		26.00	%		26.00	%
Recovery of income taxes based on the combined Canadian federal
and provincial statutory rates		(29,142,659)			(5,830,316)			(22,436,536)
Share-based remuneration		1,073,142			650,335			468,939
Effect of rate change		—			(2,344,122)			—
Foreign exchange adjustment		—			(28,668)			333,276
Other permanent differences		20,930,238			(1,798,205)			(8,821,908)
Unrecognized deferred tax benefits		7,183,316			9,670,642			30,531,995
Difference in tax rates between foreign jurisdictions and Canada		63,056			164,762			124,757
Income tax expense	$	107,093		$	484,428		$	200,523

Schedule of components of income tax expense

	For the years ended
	December 31,
	2018		2017		2016
Current tax	$	107,093	$	484,428	$	200,523
Deferred tax		—		—		—
Income tax expense	$	107,093	$	484,428	$	200,523

Schedule of the unrecognized deferred tax assets

	For the years ended
	December 31,
Deferred tax assets	2018		2017		2016
Investment tax credits	$	2,525,545	$	3,108,576	$	2,689,744
Capital assets		182,385		500,445		328,039
Share issue expenses		1,198,653		1,774,820		772,687
Non-capital loss carry forwards		65,556,024		56,627,473		22,828,376
Foreign exchange		5,453		5,500		(12,388)
Research and development expenditures		—		265,260		68,037
Reserve for legal damages		—		—		28,205,068
Deferred compensation		22,232		31,387		50,454
	$	69,490,292	$	62,313,461	$	54,930,017
Tax attributes not Recognized	$	(69,490,292)	$	(62,313,461)	$	(54,930,017)