XML 64 R48.htm IDEA: XBRL DOCUMENT v3.19.1

INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of income tax expense and the product of accounting income before income tax, multiplied by the combined Canadian federal and provincial income tax rate (the rate applicable to the Canadian parent company) is as follows:

					Year ended
					December 31,
	2018				2017				2016
Loss before income taxes	$	(25,364	)		$	(27,990	)		$	(39,864	)
Combined federal and provincial rate	26.50		%		26.50		%		26.50		%
Expected income tax recovery	(6,721		)		(7,400		)		(10,600		)
Stock based compensation	623				934				704
Other non-deductible/non-taxable items	597				(1,303		)		—
Foreign tax rate differences	—				—				(2,962		)
Unrecognized deferred tax assets	5,501				7,769				12,858
Income tax expense	$	—			$	—			$	—

Schedule of Deferred Tax Assets and Liabilities

The components of the net deferred tax assets and liabilities as of December 31, 2018, 2017 and 2016 are as follows:

	Year ended
	December 31,
	2018				2017
Current deferred tax assets
Inventories	1,812				2,148
Short-term investments	209				1,216
Total current deferred tax assets	2,021				3,364
Non-current deferred tax assets
Operating loss carry forwards	80,290				74,644
Capital loss carry forwards	14,903				15,286
Deferred revenue and other	3,622				3,695
Mineral properties and deferred costs	28,317				28,080
Asset retirement obligations	5,062				4,844
Intangibles and other	—				(663		)
Property, plant and equipment	1,549				845
Total non-current deferred tax assets	133,743				126,731
Subtotal deferred tax asset	135,764				130,095
Less: valuation allowance	(135,764		)		(130,095		)
Net deferred tax asset	$	—			$	—

Summary of Valuation Allowance

The following table summarizes the changes to the valuation allowance:

For the Year		Balance at
Ended		Beginning of						Balance at End
December 31,		Period		Additions (a)		Deductions (b)		of Period
2018		130,095		7,469		(1,800)		135,764
2017		163,666		4,259		(37,830)		130,095

a)	The additions to the valuation allowance result from additional losses incurred and increases to other tax assets such as mineral proprety and property, plant and equipment. Management does not feel these additions meet the more-likely-than-no ciriterion for recognition.
b)	The reductions to the valuation allowance result primarily from the decreases to other tax assets such as inventories, short-term investments and deferred revenue.

Summary of Operating Loss Carryforwards

The following table summarizes the Company's capital losses and net operating losses as of December 31, 2018 that can be applied against future taxable profit.

Country		Type		Amount				Expiry Date
Canada		Non-capital losses		$	37,018			2027 - 2036
Canada		Allowable Capital  losses		3,293				None
Canada		Investment Tax Credits		1,213				2023-2027
United States		Pre-2018 Net Operating losses		250,370				2026-2036
United States		Post-2017 Net Operating losses		15,949				None
United States		Capital losses		52,591				2019
		Section 163j Disallowed Interest		353				None

X

- References

No definition available.

+ Details

Name:	us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

+ Details

Name:	us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

+ Details

Name:	us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards, including an assessment of the likelihood of utilization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319

+ Details

Name:	us-gaap_SummaryOfOperatingLossCarryforwardsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

+ Details

Name:	us-gaap_SummaryOfValuationAllowanceTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration