Income Taxes - Schedule of Reconciliation of Statutory Federal Income Tax (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Federal tax at statutory rate	21.00%	21.00%
State income tax, net of federal benefit	0.50%	2.50%
Nondeductible interest	(0.10%)	(4.90%)
Other permanent items	0.40%	(1.60%)
Nondeductible impairment	(13.80%)
Research credit	0.90%	28.80%
Change in valuation allowance	(8.90%)	(45.70%)
Effective tax rate		0.10%