Warrants (Tables)

3 Months Ended

Mar. 31, 2023

Warrants

Summary of warrant activity

	March 31,	December 31,
	2023	2022
	(unaudited)
Warrants outstanding, beginning balance	7,505	7,513
Issuances	—	—
Exercises	—	—
Expirations and cancelations	—	(8)
Warrants outstanding, ending balance	7,505	7,505