Balance Sheet Components - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Property Plant And Equipment [Abstract]
Depreciation expense	$ 532,000	$ 426,000	$ 1,512,000	$ 1,284,000
Depreciation expense, discontinued operations		$ 66,000		$ 252,000