Operating Lease Liabilities and Right-of-Use Assets - Narrative (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) lease facility	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Non-cash lease expense	$ 502,000	$ 778,000
Sublease income	140,000	321,000
Operating lease, right-of-use asset, net	142,000	659,000	$ 903,000
Operating lease liabilities	236,000	728,000	$ 1,432,000
Impairment charges - right-of use assets	$ 179,000	$ 0
Number of leases exited | lease	3
Los Angeles
Lessee, Lease, Description [Line Items]
Number of facilities | facility	3
Number of sublease | facility	1
Number of properties | facility	2
Term of contract	5 months
Operating lease, right-of-use asset, net	$ 11,000
Operating lease liabilities	$ 11,000
Number of leases exited | lease	1
City of Industry
Lessee, Lease, Description [Line Items]
Number of facilities | facility	1
Dallas
Lessee, Lease, Description [Line Items]
Number of leases exited | lease	1
Boston
Lessee, Lease, Description [Line Items]
Number of leases exited | lease	1