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SUMMARY OF SIGNIFICANT EVENTS AND ACCOUNTING POLICIES (Details)
$ in Millions
12 Months Ended
Dec. 31, 2018
USD ($)
segment
Dec. 31, 2017
USD ($)
Basis of Presentation and Principles of Consolidation    
Number of operating segments | segment 1  
Allowance for doubtful accounts | $ $ 0.2 $ 0.7