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Leases (Operating leases) (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Ending with October 1,    
2021 $ 4,184  
2022 2,241  
2023 157  
2024 18  
2025 12  
2026 and beyond 66  
Total future payments 6,678  
Less: Interest 262  
Present value of future minimum operating lease payments 6,416  
Less: current portion (3,985) $ (3,430)
Operating lease liability $ 2,431 $ 2,071