Leases - Components of Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Sub-lease income	$ (112)	$ (105)
Lease cost	558	597
Operating lease cost, net	446	492
Sub-lease income	(136)	(272)
Lease cost	110	237
Restructured lease income, net	(26)	(35)
Total lease cost, net	$ 420	$ 457