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Leases - Maturities of Lease Liabilities (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Leases [Abstract]  
2020 $ 698
2021 752
2022 879
2023 968
2024 1,055
Thereafter 612
Total lease payments 4,964
Less imputed interest (935)
Lessee lease liabilities $ 4,029