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LONG-TERM DEBT (Settlement Agreement) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Sep. 21, 2018
Dec. 31, 2017
Debt Instrument [Line Items]        
Total debt $ 519 $ 516    
Settlement Agreements        
Debt Instrument [Line Items]        
Total debt       $ 3,200
Settlement Agreement [Member]        
Debt Instrument [Line Items]        
Total debt $ 34 66    
Settlement Agreement [Member] | Settlement Agreements        
Debt Instrument [Line Items]        
Frequency of periodic payment monthly      
Debt instrument, term 2 years      
Date of first required payment Nov. 01, 2018      
Maturity date Nov. 01, 2020      
Debt instrument, face amount     $ 100  
Interest rate (as a percent) 10.00%      
Total debt $ 100 $ 100