Leases - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) facility	Mar. 31, 2022 USD ($)
Lessee, Lease, Description [Line Items]
Non-cash lease expense | $	$ 46	$ 139
Sublease income | $	16	66
Operating lease, payments | $	$ 100	$ 173
Los Angeles, California
Lessee, Lease, Description [Line Items]
Number of facilities | facility	3
Number of subleases | facility	1
City of Industry, California
Lessee, Lease, Description [Line Items]
Number of facilities | facility	1