Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Common Shares	Pre-funded warrants	Additional paid-in capital	Cumulative translation adjustment	Accumulated deficit	Total
Increase (Decrease) in Stockholders' Equity and Temporary Equity
Number of warrants		11,417,034
Beginning balance at Dec. 31, 2020	$ 251,682	$ 48,007	$ 8,530	$ (1,634)	$ (163,466)	$ 143,119
Balance at the beginning of period (in shares) at Dec. 31, 2020	29,827,997
Increase (Decrease) in Stockholders' Equity and Temporary Equity
Net (loss) earnings					(25,969)	(25,969)
Exercise of stock options	$ 84		(41)			43
Exercise of stock options (in shares)	41,788
Private placement		$ 4,920				4,920
Private placement (in shares)		910,746
Share-based compensation			5,304			5,304
Ending balance at Sep. 30, 2021	$ 251,766	$ 52,927	13,793	(1,634)	(189,435)	127,417
Balance at the end of period (in shares) at Sep. 30, 2021	29,869,785
Increase (Decrease) in Stockholders' Equity and Temporary Equity
Number of warrants		12,327,780
Beginning balance at Jun. 30, 2021	$ 251,716	$ 52,927	11,795	(1,634)	(175,210)	139,594
Balance at the beginning of period (in shares) at Jun. 30, 2021	29,846,000
Increase (Decrease) in Stockholders' Equity and Temporary Equity
Net (loss) earnings					(14,225)	(14,225)
Exercise of stock options	$ 50		(26)			24
Exercise of stock options (in shares)	23,785
Private placement			2,024			2,024
Share-based compensation			2,024
Ending balance at Sep. 30, 2021	$ 251,766	$ 52,927	13,793	(1,634)	(189,435)	$ 127,417
Balance at the end of period (in shares) at Sep. 30, 2021	29,869,785
Increase (Decrease) in Stockholders' Equity and Temporary Equity
Number of warrants		12,327,780
Number of warrants		12,327,780				12,327,780
Beginning balance at Dec. 31, 2021	$ 251,901	$ 52,941	15,711	(1,634)	(206,319)	$ 112,600
Balance at the beginning of period (in shares) at Dec. 31, 2021	29,897,559					29,897,559
Increase (Decrease) in Stockholders' Equity and Temporary Equity
Net (loss) earnings					(45,211)	$ (45,211)
Exercise of stock options	$ 392		(175)			217
Exercise of stock options (in shares)	129,314
Issuance of common shares, net of issuance costs	$ 2,644					2,644
Issuance of common shares, net of issuance costs (shares)	361,236
Share-based compensation			6,905			6,905
Ending balance at Sep. 30, 2022	$ 254,937	$ 52,941	22,441	(1,634)	(251,530)	$ 77,155
Balance at the end of period (in shares) at Sep. 30, 2022	30,388,109					30,388,109
Increase (Decrease) in Stockholders' Equity and Temporary Equity
Number of warrants		12,327,780
Beginning balance at Jun. 30, 2022	$ 252,236	$ 52,941	20,090	(1,634)	(236,974)	$ 86,659
Balance at the beginning of period (in shares) at Jun. 30, 2022	30,005,884
Increase (Decrease) in Stockholders' Equity and Temporary Equity
Net (loss) earnings					(14,556)	(14,556)
Exercise of stock options	$ 57		(29)			28
Exercise of stock options (in shares)	20,989
Issuance of common shares, net of issuance costs	$ 2,644					2,644
Issuance of common shares, net of issuance costs (shares)	361,236
Share-based compensation			2,380			2,380
Ending balance at Sep. 30, 2022	$ 254,937	$ 52,941	$ 22,441	$ (1,634)	$ (251,530)	$ 77,155
Balance at the end of period (in shares) at Sep. 30, 2022	30,388,109					30,388,109
Increase (Decrease) in Stockholders' Equity and Temporary Equity
Number of warrants		12,327,780				12,327,780