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Organization and Basis of Presentation (Details) - USD ($)
$ in Thousands
9 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Mar. 31, 2018
Organization and Basis of Presentation (Textual)      
Cash and cash equivalents $ 14,294   $ 10,285
Net loss (27,656) $ (13,836)  
Utilized cash in operating activities (3,818) $ (3,281)  
Working capital deficiency $ 17,600