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Note 7 - Accrued and Other Current Liabilities (Details) - Accrued and Other Current Liabilities (USD $)
In Millions, unless otherwise specified
Jun. 30, 2013
Jun. 30, 2012
Accrued and Other Current Liabilities [Abstract]    
Legal, tax and accounting fees $ 0.4 $ 0.9
Salary and related costs 2.1 2.7
Research and development materials and services 5.4 2.5
Other accrued expenses 0.3  
Total accrued expenses $ 8.2 $ 6.1