Balance Sheet Components - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Depreciation and amortization expense	$ 14,000	$ 12,000	$ 37,000	$ 36,000
Amortization expense	468,000	$ 461,000	1,400,000	$ 1,400,000
Prepaid expenses and other current assets
Capitalized costs	$ 5,200,000		$ 5,200,000		$ 4,100,000