Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Consolidated Statements Of Comprehensive Loss
Net loss	$ (3,564,662)	$ (12,696,518)	$ (26,646,851)	$ (38,356,121)
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale investments	587	6,819	525	(5,270)
Total comprehensive loss	$ (3,564,075)	$ (12,689,699)	$ (26,646,326)	$ (38,358,691)