Income Taxes - Components of Income Tax (Benefit) Expense by Jurisdiction and by Classification (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
State and local
Current	$ 243	$ 589	$ 716
Deferred	(20)	13	104
Total	223	602	820
Foreign
Current	268	1,370	1,081
Deferred	11	4	(33)
Total	279	1,374	1,048
Total Income Taxes
Current	511	1,959	1,797
Deferred	(9)	17	71
Total	$ 502	$ 1,976	$ 1,868