Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure Of Income Tax [Abstract]

Disclosure of Rate Reconciliation

The provision for income tax differs from the amount that would have resulted by applying the combined Canadian statutory income tax rates of approximately 26.5% (2018 – 26.5%):

	December 31, 2019			December 31, 2018
(Loss) before income taxes	$	(131,939	)	$	(14,816	)
		26.5%			26.5%
Tax expense calculated using statutory rates		(34,964	)		(3,926	)
Expenses not deductible (earnings not taxable)		(2,520	)		4,656
Change in tax benefits not recognized		37,484			(934	)
Current and deferred mining taxes		(3,181	)		4,322
Income tax expenses	$	(3,181	)	$	4,118
Current income tax expense	$	(7	)	$	1,148
Deferred tax expense	$	(3,174	)	$	2,970

Disclosure of deferred taxes

Components of deferred tax assets and liabilities

	December 31, 2019			December 31, 2018
Deferred tax liabilities
Inventory	$	717		$	(4,993	)
Property, plant & equipment		(6,562	)		(25,275	)
Derivative assets		(53	)		(443	)
Deferred tax asset
Non-capital loss carryforwards		5,898			27,537
	$	-		$	(3,174	)

Disclosure of Unrecognized deferred tax assets

Deductible temporary differences for which deferred tax assets have not been recognized are attributable to the following:

	December 31, 2019		December 31, 2018
Property, plant and equipment	$	8,823	$	4,693
Decommissioning and restoration liability		58,273		57,929
Capital losses		2,923		3,200
Non-capital losses, expiring 2034 to 2039		198,701		34,247
Share issuance cost		150		1,250
Secured notes payable		5,771		36,995
	$	274,641	$	138,314