Income Taxes - Schedule of Income Tax Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Current
Federal	$ 0	$ 22
State	0	10
Total	0	32
Deferred
Federal	0	0
State	0	0
Total income tax expense	$ 0	$ 32