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Note 2 - Summary of Significant Accounting Policies (Details) - USD ($)
3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Jun. 30, 2015
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]      
Cash, FDIC Insured Amount $ 250,000    
Cash, Uninsured Amount 30,014,000   $ 28,494,000
Depreciation 1,450,000 $ 1,438,000  
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset 0    
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability 0    
Research and Development Expense $ 1,311,000 $ 1,851,000  
Incremental Common Shares Attributable to Dilutive Effect of Contingently Issuable Shares (in Shares) 693,000 386,000  
Minimum [Member]      
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]      
Media Content Service Period 1 month    
Finite-Lived Intangible Asset, Useful Life 5 years    
Standard Warranty Term 1 year    
Maximum [Member]      
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]      
Media Content Service Period 1 year    
Finite-Lived Intangible Asset, Useful Life 20 years    
Standard Warranty Term 5 years    
Maximum [Member] | Product Warranty Exceptions [Member]      
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]      
Standard Warranty Term 10 years    
Maximum [Member] | Leasehold Improvements [Member]      
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]      
Property, Plant and Equipment, Useful Life 15 years