Consolidated Statements of Comprehensive Loss Statement - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 1,712	$ (1,792)	$ (56,024)
Other comprehensive income (loss):
Unrealized gain on available for sale securities	35	66	20
Adjustment for net gain realized and included in interest income and other, net	(34)	(6)	(70)
Total change in unrealized gain (loss) on available for sale securities	1	60	(50)
Comprehensive income (loss)	$ 1,713	$ (1,732)	$ (56,074)