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SHARE-BASED COMPENSATION PLANS (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2011
Dec. 31, 2015
Restricted Stock [Member]        
Share-based Compensation [Abstract]        
Granted (in shares) 0      
Vested (in shares) 0      
Forfeited (in shares) 0      
2011 Equity Incentive Plan [Member]        
Share-based Compensation [Abstract]        
Granted (in shares)     400,000  
Shares available for future issuance (in shares)       137,665
Number of common stock, shares issued during period (in shares) 112,165      
Total compensation cost for the period $ 0.2 $ 0.2