Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	[2]	Jun. 30, 2017	[2]
Statement of Comprehensive Income [Abstract]
Net loss	[1]	$ (32,488)	$ (40,834)		$ (29,536)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment, net of tax		(461)	539		188
Available for sale securities:
Unrealized gain (loss) on available-for-sale securities, net of tax		816	(465)		(360)
Reclassification adjustments for gain on available-for-sale securities recognized, net of tax		23	5		5
Net increase (decrease) from available-for-sale securities, net of tax		839	(460)		(355)
Other comprehensive income (loss), net of tax		378	79		(167)
Comprehensive loss		$ (32,110)	$ (40,755)		$ (29,703)

[1] See Note 1 for a summary of adjustments. The cumulative effect adjustment to Accumulated Deficit and Total Stockholders' Equity related to the adoption of ASU No. 2014-09 (Topic 606) as of June 30, 2016 was $11.8 million.

[2] See Note 1 for a summary of adjustments.