Deferred tax (recovery) expense:

 

							Thirteen-months ended				Month ended				Twelve-months ended
			March 31, 2018				March 31, 2017				March 31, 2017 (Unaudited)				February 28, 2017 (Unaudited)				February 29, 2016
			$				$				$				$				$
Origination and reversal of temporary differences			5,241				2,240				163				2,077				2,065
Change in unrecognized deductible temporary differences			(5,241	)			(2,369	)			(163	)			(2,206	)			(2,065	)
Deferred tax (recovery) expense			—				(129	)			—				(129	)			—

 

Reconciliation of effective tax rate:

 

						Thirteen-months ended				Month ended				Twelve-months ended
		March 31, 2018				March 31, 2017				March 31, 2017 (Unaudited)				February 28, 2017 (Unaudited)				February 29, 2016
			$				$				$				$				$
Loss before income taxes			(21,504	)			(11,376	)			(769	)			(10,607	)			(6,317	)
Basic combined Canadian statutory income tax rate 1			26.78	%			26.87	%			26.80	%			26.88	%			26.90	%
Computed income tax recovery			(5,759	)			(3,057	)			(206	)			(2,851	)			(1,699	)
Increase resulting from:
Change in unrecognized deductible temporary differences			5,241				2,369				162				2,207				2,065
Non-deductible stock-based compensation			248				178				23				155				83
Non-deductible change in fair value			92				14				6				8				(592	)
Permanent differences and other			118				166				12				154				143
Change in statutory income tax rate			60				201				3				198				—
Total tax (recovery) expense			—				(129	)			—				(129	)			—

 

Unrecognized deferred tax assets:

 

At and the net deferred tax assets, which have been recognized in these financial statements because the criteria for recognition of these assets were met, were as follows:

 

			March 31, 2018				March 31, 2017				February 28, 2017 (Unaudited)
			$				$				$
Deferred tax assets
Tax losses carried forward			12,670				8,293				8,153
Research and development expenses			4,927				4,220				4,196
Property, plan and equipment and intangible assets			567				435				423
Other deductible temporary differences			884				522				539
Deferred tax assets			19,048				13,470				13,311
Deferred tax liabilities
Tax basis of unsecured convertible debentures in excess of carrying value			67				122				126
Deferred tax liabilities			67				122				126
Net deferred tax assets			18,981				13,348				13,185

 

On initial recognition of the unsecured convertible debenture equity component on a deferred tax liability of was recognized with the corresponding entry recognized directly in Other equity. Consequently, an equal amount of deferred tax asset related to unrecognized tax losses was recognized with the offsetting entry in the Corporation statement of earnings and comprehensive loss.

 

As at the amounts and expiry dates of tax attributes and temporary differences, which are available to reduce future years’ taxable income, were as follows:

 

			March 31, 2018
			Federal				Provincial
			$				$
Tax losses carried forward
2029			714				714
2030			1,627				1,620
2031			2,071				2,063
2032			2,262				2,241
2033			1,854				1,825
2034			3,598				3,598
2035			4,595				4,459
2036			5,494				5,494
2037			8,584				8,456
2038			17,155				17,155
			47,954				47,625
Research and development expenses, without time limitation			18,002				19,362
Other deductible temporary differences, without time limitation			5,224				5,224