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Commitments and Contingencies - Summary of Maturities of Lease Liabilities (Detail) - USD ($)
Sep. 30, 2022
Dec. 31, 2021
Lessee, Operating Lease, Liability, to be Paid [Abstract]    
2022 (Remaining three months) $ 215  
2023 872 $ 674,000
2024 703 694,000
2025 0 596,000
2026 0 0
2026   0
Total lease payments 1,790 1,964,000
Less imputed interest (210) (316,000)
Total lease liabilities as of December 31, 2021 $ 1,580 $ 1,648,000