Summary of Warranty Accrual Activity (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Balance at beginning of period	$ 217	$ 188
Accruals for warranties charged to expense	12	45
Cost of warranty claims	(15)	(16)
Balance at end of period	$ 214	$ 217