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Leases - Minimum Future Rental Commitments, Topic 842 (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
2019 $ 352  
2020 456  
2021 448  
2022 301  
2023 250  
Thereafter 2,009  
Total lease payments 3,816  
Less imputed interest (679)  
Total operating lease liabilities $ 3,137 $ 3,230