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Summary of Significant Accounting Policies - Other Assets (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Long-term prepaid royalty license	$ 1,246	$ 1,496
Investment in a privately held company	750	750
Restricted cash	$ 450	$ 847

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Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

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Amount of asset related to consideration paid in advance for royalties that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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