Short-term investments - Schedule of Short-term Investment in Convertible Debt Securities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Short-Term Debt [Line Items]
Beginning of year	$ 4,676,130
Unrealized gain (loss) on convertible debt security	4,423,985	$ 886,543
End of period		4,676,130
Convertible Debt Securities [Member]
Short-Term Debt [Line Items]
Convertible note	539,351
Beginning of year	539,351
Investment in convertible debt security		5,000,000
Accrued interest income on convertible debt security	17,753	179,101
Convertible debt and interest converted into marketable shares	(844,882)	(4,231,758)
Unrealized gain (loss) on convertible debt security	$ 287,778	(407,992)
End of period		$ 539,351