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LONG-TERM DEBT (Settlement Agreement) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Sep. 21, 2018
Debt Instrument [Line Items]      
Total debt $ 374 $ 519  
Settlement Agreement [Member]      
Debt Instrument [Line Items]      
Total debt $ 25 34  
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