Note 9 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

(In thousands)		Years Ended December 31,
	2020			2019			2018
United States	$	(851	)	$	53,971		$	(5,102	)
Canada		(12,553	)		664,689			(15,404	)
Other Foreign		577			(207	)		(632	)
Total	$	(12,827	)	$	718,453		$	(21,138	)

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

Current	2020			2019			2018
United States	$	262		$	1,806			-
Canada		(1,821	)		48,031			-
Other Foreign		-			-			-
Total	$	(1,559	)		49,837			-
Deferred
United States		-			-			-
Canada		(155	)		(13	)		-
Other Foreign		108			-			-
Total		(47	)		(13	)		-
Total income tax expense	$	(1,606	)	$	49,824		$	-

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	2020			2019			2018
Income tax benefit computed at federal tax rate		27.0	%		27.0	%		26.0	%
Capital gains and foreign exchange		1.2	%		(13.0	)%		-
Change in valuation allowance		(37.3	)%		(6.3	)%		(20.3%	)
Tax Credits generated		34.5	%		-			-
Prior year adjustments		1.7	%		(0.4	)%		(2.3%	)
Changes in Uncertain Tax Positions		(7.7	)%		0.2	%		-
Stock compensation and other		(6.9	)%		(0.6	)%		(3.4	)%
Total		12.5	%		6.9	%		—	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	2020			2019			2018
Deferred tax assets:
Noncapital losses	$	60		$	43		$	43,474
Research and other credits		3,020			-			3,119
Stock based compensation		4,036			2,354			1,712
Share issue costs		610			587			128
Accrued liabilities		194			699			229
Foreign Exchange		950			-			-
Deferred rent		-			-			1
Total deferred tax assets		8,870			3,683			48,663
Deferred tax liabilities:
Depreciation		592			348			166
Prepaid assets		52			98			55
Foreign exchange		108			-			-
Total deferred tax liabilities		752			446			221
Net deferred tax asset		8,118			3,237			48,442
Valuation allowance for deferred tax assets		(7,585	)		(2,794	)		(48,442	)
Net deferred tax asset including valuation allowance	$	533		$	443		$	—

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

	2020		2019		2018
Balance as of January 1		1,056		0		0
Additions based on tax positions related to the current year		49		46		0
Additions for tax positions of prior years		955		1,010		0
Reductions for tax positions of prior years		0		0		0
Settlements		0		0		0
Balance at December 31		2,060		1,056		-