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Stock Plans And Stock-Based Compensation (Summary Of Activity Related To MSPP And DSPP) (Details) (USD $)
12 Months Ended
Jun. 30, 2011
MSPP [Member]
 
Number of Shares, Unvested, Beginning Balance 72,844
Granted 15,171
Issued (9,005)
Forfeited (1,518)
Number of Shares, Unvested, Ending Balance 77,492
Weighted average grant date fair value as adjusted for the applicable discount $ 36.46
DSPP [Member]
 
Number of Shares, Unvested, Beginning Balance 427
Granted 241
Number of Shares, Unvested, Ending Balance 668
Weighted average grant date fair value $ 51.87