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Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Valuation Allowance [Line Items]
Income (loss) from discontinued operations, net of income taxes	$ (650,000)	$ (363,000)	$ (894,000)
Taxes payable, current	$ 865,000	$ 0	$ 0
Effective income tax rate	26.50%	26.50%	26.50%
Canada
Valuation Allowance [Line Items]
Operating loss carryforwards	$ 177,651,000	$ 92,773,000
Untied States
Valuation Allowance [Line Items]
Operating loss carryforwards	62,851,000	14,374,000
Israel
Valuation Allowance [Line Items]
Operating loss carryforwards	14,042,000	8,763,000
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset
Valuation Allowance [Line Items]
Increase in valuation allowance	$ 48,294,000	$ 28,019,000

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Amount after tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until disposal.

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

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