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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS    
Net Loss $ (8,678,347) $ (5,549,521)
Unrealized Loss on Available-for-Sale Debt Instrument Investments (7,161) (189,995)
Foreign Currency Translation Adjustments (92) (2,485)
Comprehensive Loss $ (8,685,600) $ (5,742,001)