Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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

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Income Taxes - Schedule of Tax Credits and Non-Capital Loss Carry Forwards (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Tax Credit Carryforward [Line Items]
Non-Capital Losses	$ 96,495	$ 17,728
SR&ED Expenditures
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	13,148	12,683
Investment Tax Credits
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	3,762	$ 3,435
2032
Tax Credit Carryforward [Line Items]
Non-Capital Losses	14
2032 \| SR&ED Expenditures
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
2032 \| Investment Tax Credits
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	394
2033
Tax Credit Carryforward [Line Items]
Non-Capital Losses	52
2033 \| SR&ED Expenditures
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
2033 \| Investment Tax Credits
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	197
2034
Tax Credit Carryforward [Line Items]
Non-Capital Losses	245
2034 \| SR&ED Expenditures
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
2034 \| Investment Tax Credits
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	563
2035
Tax Credit Carryforward [Line Items]
Non-Capital Losses	625
2035 \| SR&ED Expenditures
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
2035 \| Investment Tax Credits
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	557
2036
Tax Credit Carryforward [Line Items]
Non-Capital Losses	30,023
2036 \| SR&ED Expenditures
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
2036 \| Investment Tax Credits
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	1,050
2037
Tax Credit Carryforward [Line Items]
Non-Capital Losses	65,536
2037 \| SR&ED Expenditures
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
2037 \| Investment Tax Credits
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	1,001
Indefinite
Tax Credit Carryforward [Line Items]
Non-Capital Losses	0
Indefinite \| SR&ED Expenditures
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	13,148
Indefinite \| Investment Tax Credits
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 0