Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Line Items]
Net deferred tax assets	$ 17,318,000	$ 19,278,000
Unrecognized tax benefits	0	0
Unrecognized tax benefits, income tax penalties and interest expense	$ 0	0
Accounting Standards Update 2016-13
Income Tax Disclosure [Line Items]
Net deferred tax assets		$ 1,400,000