Capital stock - Schedule of Proceeds of Equity Components (Details) - USD ($) $ in Thousands		3 Months Ended
	May 14, 2021	Mar. 31, 2022
Schedule of Additional Paid In Capital [Line Items]
Gross proceeds	$ 12,346	$ 3,200
Transaction costs	422	328
Net proceeds	11,924	2,872
Common Stock [Member]
Schedule of Additional Paid In Capital [Line Items]
Gross proceeds	8,695	1,627
Transaction costs	297	167
Net proceeds	8,398	1,460
Warrants [Member]
Schedule of Additional Paid In Capital [Line Items]
Gross proceeds	3,651	487
Transaction costs	125	50
Net proceeds	$ 3,526	$ 437