Warrants - Warrants outstanding and exercisable (Details) - shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Warrants
Warrants outstanding, beginning balance	7,513	32,024
Issuances		2,250
Exercises		(26,761)
Expirations and cancelations	(8)
Warrants outstanding, ending balance	7,505	7,513