Components of Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Prepaid Expense and Other Assets, Current [Abstract]
Prepaid inventory	$ 1,225	$ 578
Prepaid insurance	662	680
Other	1,166	754
Prepaid expenses and other current assets	$ 3,053	$ 2,012