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Note 4 - Accrued Expenses (Tables)
9 Months Ended
Mar. 31, 2015
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
 
 
March 31,
2015
 
 
June
30,
2014
 
                 
Professional Fees
  $ 0.9     $ 1.0  
Salary and benefits
    1.5       0.4  
Clinical, Preclinical and Manufacturing
    1.6       0.8  
Other accrued
    0.5       1.2  
Total accrued expenses and other liabilities
  $ 4.5     $ 3.4