Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Share-based Compensation (Details Textual)

v3.3.0.814
Note 4 - Share-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Restricted Stock Units (RSUs) [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 35,000 34,000
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 $ 93.70
Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 12,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 108.49  
Selling, General and Administrative Expenses [Member]    
Allocated Share-based Compensation Expense $ 2.0 $ 1.4
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 736,000 467,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price $ 106.66 $ 93.95
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 18.48 $ 13.93
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 21.7  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 2 years 292 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 12,500 28,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value $ 0.5 $ 0.2