Income Taxes - Provision For Income taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Current tax expense (benefit):
Federal		$ 86
Total current tax expense (benefit)		86
Deferred tax expense:
Federal	$ (49)	589
State	(15)	127
Valuation allowance		934
Total deferred tax expense	(64)	1,650
Total income tax expense (benefit), Amount	$ (64)	$ 1,736