Income Taxes - Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ 0	$ 0	$ 0
State	(87)	(53)	101
Foreign	1,512	747	(76)
Total Current	1,425	694	25
Deferred:
Federal	2	2	2
State	1	1	1
Foreign	(105)	(227)	57
Total Deferred	(102)	(224)	60
Tax provision	$ 1,323	$ 470	$ 85