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Balance Sheet Accounts (Schedule of Gross and Net Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Jun. 30, 2012
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 12,617 | $ 12,282
Accumulated Amortization | 7,978 | 7,176
Net Carrying Amount | 4,639 | 5,106
Patents |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 7 years 2 months 12 days | 7 years 4 months 24 days
Gross Carrying Amount | 1,800 | 1,800
Accumulated Amortization | 775 | 669
Net Carrying Amount | 1,025 | 1,131
License Agreements |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 10 years | 9 years 3 months 18 days
Gross Carrying Amount | 10,158 | 10,158
Accumulated Amortization | 6,845 | 6,231
Net Carrying Amount | 3,313 | 3,927
Other Intangibles |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 2 years 8 months 12 days | 3 months 18 days
Gross Carrying Amount | 659 | 324
Accumulated Amortization | 358 | 276
Net Carrying Amount | $ 301 | $ 48

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