Quarterly report pursuant to Section 13 or 15(d)

Leases - Schedule of Maturities of Lease Liabilities (Detail)

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Leases - Schedule of Maturities of Lease Liabilities (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Leases [Abstract]    
2022 $ 624  
2023 621  
2024 613  
2025 519  
2026 and thereafter 121  
Total operating lease liability 2,498  
Less imputed interest (537)  
Total lease liabilities 1,961  
Current operating lease liabilities 404 $ 305
Non current operating lease liability $ 1,557 $ 1,774