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Operating Leases - Lessee, Operating Lease, Liability, Maturity (Detail) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Disclosure of Operating Leases [Line Items]    
2023 (remaining three months) $ 127  
2024 522  
2025 537  
2026 553  
2027 570  
Thereafter 2,027  
Total lease payments 4,336  
Less: imputed interest (693)  
Total $ 3,643 $ 3,894