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Balance Sheet Components - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Depreciation and amortization expense $ 12,000 $ 15,000 $ 36,000 $ 46,000  
Amortization expense 461,000 $ 489,000 1,400,000 $ 1,500,000  
Prepaid expenses and other current assets          
Capitalized costs $ 3,700,000   $ 3,700,000   $ 2,800,000