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STOCK BASED COMPENSATION, SHARE-BASED COMPENSATION (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Stock options        
Stock-based compensation (in dollars) $ 68 $ 85 $ 203 $ 541
Stock Options        
Stock options        
Stock-based compensation (in dollars) $ 42   $ 126  
Expected term     10 years  
Vesting period     48 months