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Property and Equipment (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Property and Equipment (Textual)        
Depreciation expense $ 300 $ 100 $ 600 $ 100