Condensed Consolidated Statements of Comprehensive Income (Loss) (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (7,555)	$ 3,854	$ (11,543)	$ 7,459
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment, net of tax	(80)	68	(35)	22
Unrealized gain on available-for-sale securities, net of tax	30	107	270	253
Reclassification adjustments for gain (loss) on available-for-sale securities recognized, net of tax	(26)	(19)	(112)	(73)
Net increase from available-for-sale securities, net of tax	4	88	158	180
Other comprehensive income (loss), net of tax:	(76)	156	123	202
Comprehensive income (loss)	$ (7,631)	$ 4,010	$ (11,420)	$ 7,661