Consolidated Statements of Comprehensive Loss Statement - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,792)	$ (56,024)	$ (32,822)
Other comprehensive income (loss):
Unrealized gain on available for sale securities	66	20	90
Adjustment for net gain realized and included in interest and other, net	(6)	(70)	0
Total change in unrealized gain (loss) on available for sale securities	60	(50)	90
Comprehensive loss	$ (1,732)	$ (56,074)	$ (32,732)