Annual report pursuant to Section 13 and 15(d)

Note 10 - Income Taxes (Details Textual)

v3.5.0.2
Note 10 - Income Taxes (Details Textual)
€ in Millions
 12 Months Ended
Jun. 30, 2016
USD ($)
Jun. 30, 2015
EUR (€)
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
R&D Europe [Member]        
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries | €   € 46.6    
Income Tax Expense (Benefit)     $ 1,700,000  
Capital Loss Carryforward [Member]        
Deferred Tax Assets, Valuation Allowance $ 5,000,000   0  
Operating Loss and Credit Carryforwards [Member]        
Deferred Tax Assets, Valuation Allowance 2,000,000   2,400,000  
Deferred Tax Assets, Investment [Member]        
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 5,000,000      
Deferred Tax Asset, Operating Loss Carry Forwards [Member]        
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount (300,000)      
Operating Loss Carryforwards [Member]        
Deferred Tax Assets, Net of Valuation Allowance 24,900,000      
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]        
Operating Loss Carryforwards 63,900,000      
Tax Credit Carryforward, Amount 1,700,000      
State and Local Jurisdiction [Member]        
Operating Loss Carryforwards 71,600,000      
Tax Credit Carryforward, Amount 1,300,000      
Foreign Tax Authority [Member]        
Operating Loss Carryforwards $ 2,100,000      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 35.00%      
Change in Effective Income Tax Rate, Percentage (0.90%)      
Income Tax Expense (Benefit) $ 43,005,000   46,427,000 $ 50,444,000
Deferred Tax Assets, Valuation Allowance 7,201,000   2,558,000  
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 4,700,000      
Deferred Tax Assets, Net of Valuation Allowance 50,526,000   57,789,000  
Deferred Tax Assets, Tax Credit Carryforwards 3,197,000   $ 3,872,000  
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries $ 57,600,000