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RELATED PARTY TRANSACTION (Details) - Director - Professional Services Agreement - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 24 Months Ended
Sep. 30, 2017
Sep. 30, 2017
Dec. 31, 2018
RELATED PARTY TRANSACTIONS      
Charges incurred $ 0.1 $ 0.2  
Payments to related party $ 0.1 $ 0.2  
Forecast | Maximum      
RELATED PARTY TRANSACTIONS      
Payments to related party     $ 0.4