Income Taxes (Tables)

12 Months Ended

Apr. 30, 2019

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Summary of Earning Before Income Taxes

For the year ended April 30,	2019			2018			2018
(Loss) Earnings before income taxes	$	(9,575	)	$	(17,945	)	$	4,361
Income tax expense (recovery) at statutory rate		(2,532	)		(5,981	)		1,134
Difference from higher statutory tax rates on earnings of foreign subsidiaries		1,749			(917	)		—
Losses expired		1,426			—			—
Permanent Difference		1,550			—			(1,286	)
Effect of Mexican mining royalty tax (SMD) on deferred income tax liabilities		—			(375	)		(3,568	)
Recognition of previously unrecognized non-capital loss carry forward and other deductible tax benefits		36			1,328			859
Income tax (recovery) expense	$	2,229		$	(5,945	)	$	(2,861	)

Summary of Significant Components of Deferred Income Tax Assets and Liabilities

The significant components of the Company’s deferred income tax assets and liabilities are as follows:

	April 30, 2019			April 30, 2018
Deferred income tax assets (liabilities):
Mining interest, plant and equipment	$	(6,787	)	$	(4,235	)
Payments to defer		(286	)		(172	)
Insurance		(16	)		(14	)
Reclamation and closure costs provision		991			956
Exploration assets		932			(368	)
Expenses reserve		120			255
Pension-fund reserve		118			200
Deferred mining tax		(1,641	)		(1,193	)
Non-capital losses and other deductible tax benefits		3,504			5,316
Plant and equipment		536			—
Other		—			(748	)
Deferred income tax liabilities, net	$	(2,529	)	$	(3	)

	April 30, 2019		April 30, 2018
Non-Capital losses	$	11,586	$	7,580
Property and equipment		1,828		—
Exploration and evaluation assets		22,240		22,497
	$	35,654	$	30,077