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STOCKHOLDERS’ EQUITY (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Aug. 10, 2018
Common stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares authorized (shares)           400,000
Number of shares available for future grants (shares) 367,500 367,500   367,500    
Restricted stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Grants in period to each independent member of board of directors (shares) 6,500          
Total grants in period (shares) 32,500          
Shares vested (in shares) 14,000          
Vesting period 1 year          
Remaining shares non vested (in shares) 18,500 18,500   18,500    
Unrecognized compensation expense $ 40 $ 40   $ 40    
Restricted stock | General and administrative expenses            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Compensation expense   $ 40 $ 32 $ 80 $ 64