v3.5.0.2
Note 10 - Income Taxes (Details Textual) - USD ($)
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Domestic Tax Authority [Member] | Earliest Tax Year [Member]      
Open Tax Year 2012    
Domestic Tax Authority [Member] | Latest Tax Year [Member]      
Open Tax Year 2014    
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries $ 0 $ 0 $ 0
Unrecognized Tax Benefits 500,000 500,000  
Undistributed Earnings of Foreign Subsidiaries $ 8,600,000 $ 10,900,000 $ 3,800,000
Effective Income Tax Rate Reconciliation, Percent 35.00%    
Operating Loss Carryforwards $ 120,000,000