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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Intangible Assets) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Accounting Policies [Abstract]    
Amortization expense for intangible assets $ 0.1 $ 0.1
Remaining amortization expense, 2017 0.1  
Amortization expense, 2018 0.1  
Amortization expense, 2019 (less than) 0.1  
Amortization expense, 2020 (less than) 0.1  
Amortization expense, 2021 (less than) $ 0.1