Income Taxes (Tables)

12 Months Ended

Apr. 30, 2018

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Summary of Earning Before Income Taxes

For the periods ended	April 30, 2018			April 30, 2017
(Loss) Earnings before income taxes	$	(17,945	)	$	4,361
Income tax expense (recovery) at statutory rate		(5,981	)		1,134
Difference from higher statutory tax rates on earnings of foreign subsidiaries		(917	)		—
Permanent Difference		—			(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		1,328			859
Income tax (recovery) expense	$	(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, 2018			April 30, 2017
Deferred income tax assets (liabilities):
Mining interest, plant and equipment	$	(4,235	)	$	(7,805	)
Payments to defer		(172	)		(31	)
Insurance		(14	)		(14	)
Reclamation and closure costs provision		956			1,018
Exploration assets		(368	)		(346	)
Expenses reserve		255			146
Pension-fund reserve		200			121
Deferred mining tax		(1,193	)		(1,670	)
Non-capital losses and other deductible tax benefits		5,316			4,682
Sale on San Pedrito		—			(2,138	)
Other		(748	)		(723	)
Deferred income tax liabilities, net	$	(3	)	$	(6,460	)