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Leases - Maturities of Operating Lease Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Leases    
2021 (Remainder) $ 504  
2022 634  
2023 610  
2024 306  
2025 69  
Thereafter  
Total lease payments 2,123  
Less: Imputed interest (209)  
Total $ 1,914 $ 2,068