Income Taxes - Canadian federal and provincial income tax rate (Details) - USD ($) $ in Thousands		12 Months Ended
Dec. 22, 2019	Dec. 31, 2019	Dec. 31, 2018
Income Taxes
Domestic (loss)/gain		$ (9,004)	$ (7,702)
Foreign loss		(3,734)	(2,145)
Loss before income taxes		$ (12,738)	$ (9,847)
Expected statutory rate (recovery)	21.00%	26.50%	26.50%
Expected provision for (recovery of) income tax		$ (3,376)	$ (2,609)
Permanent differences		901	512
Change in valuation allowance		2,193	2,042
Effect of foreign exchange rate differences		0	0
Effect of change in future enacted tax rates		0	0
Tax credits and other adjustments		0	0
Effect of tax rate changes and other		280	55
Provision for income taxes		$ 0	$ 0

The amount of tax impact due to expected provision for recovery of income tax.

No definition available.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of tax credits and other adjustments during the period.

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The amount of tax impact due to permanent difference irreversible in future.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

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