Supplemental cash flow information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Change in working capital
Accounts receivable	$ 277,078	$ 151,057
Income tax receivable	0	1,698,115
Inventory	1,741,585	(1,471,063)
Prepaid expenses and other current assets	(1,695,397)	991,791
Security deposits	(20,574)	(133,875)
Other long term assets	145,833	(43,485)
Accounts payable and accrued liabilities	(2,231,091)	(4,262,597)
Total change in working capital	$ (1,782,566)	$ (3,070,057)