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LEASES - Undiscounted future lease payments for operating and finance leases (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Operating Leases    
2020 (excluding the Six-months ended June 30, 2020) $ 1,836  
2021 3,506  
2022 2,838  
2023 2,164  
2024 1,881  
2025 and thereafter 13,089  
Total lease payments 25,314  
Less imputed interest (4,203)  
Total 21,111 $ 28,463
Finance Leases    
2020 (excluding the Six-months ended June 30, 2020) 1,489  
2021 351  
Total lease payments 1,840  
Less imputed interest (15)  
Total $ 1,825 $ 1,485