Income Taxes - Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal income taxes:
Current	$ 722	$ 290	$ 430
Deferred	(100)	(18)	(20)
State income taxes:
Current	139	14	85
Deferred	(19)	(3)	(4)
Income tax benefit	$ 742	$ 283	$ 491