Income Taxes - Components of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current:
State	$ 8	$ 4	$ 2
Foreign	0	0	0
Total current	8	4	2
Deferred:
Federal	0	0	0
Total deferred	0	0	0
Provision for income taxes	$ 8	$ 4	$ 2