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Leases - Lease Maturity (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
2020 (excluding the three months ended March 31, 2020) $ 229  
2021 300  
2022 246  
2023 239  
Thereafter 202  
Total lease payments 1,216  
Less imputed interest (138)  
Total $ 1,078 $ 980