Long-term debt – related party - Schedule of long-term debt (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
Outstanding principal amount of long-term debt — related party	$ 11,750	$ 12,500
Less: Long-term debt — related party, current	3,000	3,000
Long-term debt — related party, net of current	8,750	9,500
Less: Unamortized debt issuance costs and debt discount, net of current	(129)	(305)
Long-term debt − related party, net of current and discount	$ 8,621	$ 9,195