Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Payables and Accruals [Abstract]
Accrued compensation	$ 1,441	$ 846
Accrued commissions	20	14
Other accrued expenses	196	228
Total accrued expenses	$ 1,657	$ 1,088