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Leases - Future Minimum Lease Payments for Operating Leases (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Leases [Abstract]  
2020 $ 489
2021 198
2022 15
2023 12
2024 2
Total minimum lease payments 716
Less: amount of lease payments representing interest 30
Present value of operating lease liabilities $ 686