Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Line Items]
Current income tax expense or benefit	$ 0	$ 0
Deferred income tax expense or benefit	0	0
Increase in valuation allowance	28,200,000	$ 1,600,000
Penalties related to income tax matters	0
Accrued interest related to income tax matters	$ 0
Net operating loss, carryback period due to CARES Act	5 years
Federal [Member]
Income Tax Disclosure [Line Items]
Operating loss carryforwards	$ 150,900,000
Operating loss carryforwards, expiration date	Dec. 31, 2030
Operating loss carryforwards, carried forward indefinitely	$ 106,600,000
State [Member]
Income Tax Disclosure [Line Items]
Operating loss carryforwards	$ 55,800,000
Operating loss carryforwards, expiration date	Dec. 31, 2030
Research and Development [Member] | Federal [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforwards	$ 3,100,000
Tax credit carryforwards, expiration date	Dec. 31, 2037
Research and Development [Member] | State [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforwards	$ 1,700,000
Tax credit carryforwards, expiration date	Dec. 31, 2027