Balance Sheet Accounts (Schedule of Available-for-sale Securities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 33,215	$ 33,145
Fair Value	33,272	33,259
Unrealized Holding Gains	57	114
Unrealized Holding Losses	0	0
Cash equivalents
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,877	567
Fair Value	2,877	567
Unrealized Holding Gains	0	0
Unrealized Holding Losses	0	0
Short-term investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	30,338	32,578
Fair Value	30,395	32,692
Unrealized Holding Gains	57	114
Unrealized Holding Losses	0	0
Marketable securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		0
Fair Value		0
Unrealized Holding Gains		0
Unrealized Holding Losses		0
Money market funds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,877	567
Fair Value	2,877	567
Unrealized Holding Gains	0	0
Unrealized Holding Losses	0	0
U.S. corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	30,338	32,578
Fair Value	30,395	32,692
Unrealized Holding Gains	57	114
Unrealized Holding Losses	$ 0	$ 0