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Leases - Future Minimum Rental Commitments Under Lease Agreements (Detail)
$ in Thousands
Jun. 30, 2021
USD ($)
Leases [Abstract]  
Remainder of 2021 $ 319
2022 577
2023 591
2024 589
2025 and thereafter 489
Total future minimum lease obligations 2,565
Less imputed interest (585)
Total lease liabilities $ 1,980