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Note 2 - Summary Of Significant Accounting Policies (Details) (USD $)
3 Months Ended 9 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Mar. 31, 2013
Jun. 30, 2013
Note 2 - Summary Of Significant Accounting Policies (Details) [Line Items]          
Cash, FDIC Insured Amount $ 250,000   $ 250,000    
Cash, Uninsured Amount 10,155,000   10,155,000   7,688,000
Depreciation 1,409,000 1,162,000 3,972,000 3,497,000  
Finite-Lived Intangible Asset, Useful Life 9 years        
Research and Development Expense $ 1,973,000 $ 1,688,000 $ 6,054,000 $ 4,862,000  
Incremental Common Shares Attributable to Dilutive Effect of Contingently Issuable Shares (in Shares) 514,000 385,000 472,000 347,000  
Minimum [Member]
         
Note 2 - Summary Of Significant Accounting Policies (Details) [Line Items]          
Finite-Lived Intangible Asset, Useful Life     2 years    
Maximum [Member]
         
Note 2 - Summary Of Significant Accounting Policies (Details) [Line Items]          
Finite-Lived Intangible Asset, Useful Life     20 years