Balance Sheet Accounts (Schedule of Available-for-sale Securities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 21,285	$ 33,145
Fair Value	21,285us-gaap_AvailableForSaleSecurities	33,259us-gaap_AvailableForSaleSecurities
Unrealized Holding Gains	0	114
Unrealized Holding Losses	0	0
Cash equivalents
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	19,779	567
Fair Value	19,779	567
Unrealized Holding Gains	0	0
Unrealized Holding Losses	0	0
Short-term investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,506	32,578
Fair Value	1,506	32,692
Unrealized Holding Gains		114
Unrealized Holding Losses	0	0
Money market funds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	19,779	567
Fair Value	19,779	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	1,506	32,578
Fair Value	1,506	32,692
Unrealized Holding Gains		114
Unrealized Holding Losses	$ 0	$ 0

Amount of accumulated pre-tax unrealized gains before deducting pre-tax unrealized losses on investments in available-for-sale securities impacting investments.

No definition available.

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- Definition

Amount of accumulated pre-tax unrealized loss before deducting pre-tax unrealized gain on investments in available-for-sale securities impacting investments.

+ References

No definition available.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 5

-Subparagraph (aa)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

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-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

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