Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statements Of Comprehensive Loss
Net loss	$ (10,029,419)	$ (13,249,684)	$ (23,082,189)	$ (25,659,603)
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale investments	515	(9,389)	(62)	(9,389)
Total comprehensive loss	$ (10,028,904)	$ (13,259,073)	$ (23,082,251)	$ (25,668,992)