Annual report pursuant to Section 13 and 15(d)

Note 9 - Share-based Compensation and Other Benefit Plans (Details Textual)

v3.5.0.2
Note 9 - Share-based Compensation and Other Benefit Plans (Details Textual) - USD ($)
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Equity Incentive Plan 2010 [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years      
Equity Incentive Plan 2010 [Member] | Selling, General and Administrative Expenses [Member]        
Stock or Unit Option Plan Expense $ 9,400,000 $ 5,900,000 $ 3,500,000  
Equity Incentive Plan 2010 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 3,800,000      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 1,800,000      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 1,800,000      
Nonqualified Stock Options Plan 1998 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 98,000      
Incentive Stock Options Plan 1997 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 9,000      
Employee Stock Purchase Plan 2014 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 200,000      
Allocated Share-based Compensation Expense $ 144,000      
Performance Incentive Programs [Member] | Restricted Stock [Member] | Executive Officer [Member]        
Stock Issued During Period, Shares, Restricted Stock Award, Gross 11,522   17,855  
Performance Incentive Programs [Member] | Restricted Stock Units (RSUs) [Member] | Executive Officer [Member]        
Stock Issued During Period, Shares, Restricted Stock Award, Gross 26,583   5,000  
Performance Incentive Programs [Member] | Executive Officer [Member]        
Officers' Compensation $ 4,200,000 $ 1,900,000 $ 900,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures 621,000 322,000 216,000  
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 19,994 9,000 26,355  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 91.78 $ 86.60  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 22,545 19,102 36,355  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period 10,000      
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 35,083 36,192 5,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 105.01   $ 94.13  
Selling, General and Administrative Expenses [Member]        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 15,900,000      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 1 year 73 days      
Profit Sharing and Savings Plan [Member] | UNITED STATES        
Pension and Other Postretirement Benefit Expense $ 1,200,000 $ 1,100,000 $ 700,000  
Profit Sharing and Savings Plan [Member] | UNITED KINGDOM        
Pension and Other Postretirement Benefit Expense $ 800,000 $ 700,000 $ 600,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 1,819 1,137 811 728
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 18.50 $ 15.01 $ 14.77  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value $ 2,400,000 $ 3,500,000 $ 3,700,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value $ 1,600,000 $ 2,300,000 $ 2,200,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 99.53      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures 805 600 251