Income Taxes - Components of provision for income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Current provision:
State	$ 92	$ 38
Total current	92	38
Deferred provision benefit:
Federal	(2,983)	(38)
State	(356)	(8)
Total deferred	(3,339)	(46)
Income tax benefit	$ 3,247	$ 8