Income Taxes - Schedule of Income before Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Domestic	$ 4,213	$ 10,833
Foreign	112	(31)
Income before provision for income taxes	$ 4,325	$ 10,802