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STOCKHOLDERS' EQUITY (Details 2) - Unvested Restricted Shares [Member] - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense associated with restricted stock $ 4,890,123 $ 2,834,038 $ 12,375,306 $ 6,181,400
Allocated Share-based Compensation Expense $ 4,890,123 $ 2,834,038 $ 12,375,306 $ 6,181,400