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Note 7. Stock Compensation Plans - Textuals (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Share-based Compensation Arrangements      
Stock Compensation Plan, Shares Reserved 2,500,000    
Stock Compensation Plan, Pre-tax Compensation Cost $ 1.4 $ 1.3 $ 1.8
Stock Compensation Plan, Income Tax Benefit from Compensation Cost $ 0.6 $ 0.5 $ 0.7