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Postretirement Benefits (Schedule Of Change In Plan Assets) (Details) (Postretirement Benefits [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Postretirement Benefits [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Employer contributions $ 69 $ 207
Benefits paid (69) (207)
Fair value of plan assets at end of year $ 0 $ 0