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LONG-TERM DEBT, EXCLUDING CURRENT MATURITIES (Narrative) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Long-term Debt, Excluding Current Maturities [Abstract]    
Capital leases $ 477 $ 724
Current portions of long-term debt classified as trade payables $ 477 $ 416