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ACCOUNTING FOR LEASES - Undiscounted cash flow operating lease liability (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
ACCOUNTING FOR LEASES    
2021 $ 1,432  
2022 1,078  
2023 1,072  
2024 1,072  
2025 1,072  
Thereafter 16,940  
Total minimum lease payments 22,666  
Less: amount of lease payment representing interest (7,869)  
Present value of future minimum payments 14,797  
Less: current obligations under leases (813) $ (791)
Long-term lease obligations $ 13,984 $ 14,797