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Note 6 - Accrued and Other Current Liabilities
12 Months Ended
Jun. 30, 2017
Notes to Financial Statements  
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]
(
6
)
Accrued and Other Current Liabilities
 
Accrued and other current liabilities consist of the following (in millions):
 
   
As of June
30,
 
   
2017
   
2016
 
                 
Professional fees
  $
0.4
    $
0.1
 
Salary and related costs
   
0.4
     
0.6
 
Research and development services
   
1.8
     
2.2
 
Other accrued expenses
   
0.3
     
0.7
 
Total accrued expenses and other liabilities
  $
2.9
    $
3.6