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Summary of Significant Accounting Policies (Schedule Of Amounts Reclassified Out of Accumulated Other Comprehensive Loss) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Accumulated other comprehensive loss at beginning of period $ (8,061) $ (8,391)
Total other comprehensive income, before tax 99 107
Total tax expense (36) (40)
Other comprehensive income, net of tax 63 67
Accumulated other comprehensive loss at end of period (7,998) (8,324)
Pension Benefits [Member]
    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Amortization of unrecognized net (gain) loss 107 [1] 115 [1]
Postretirement Benefits [Member]
    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Amortization of unrecognized net (gain) loss (7) [1] (7) [1]
Amortization of prior service asset $ (1) [1] $ (1) [1]
[1] Included in the computation of net periodic benefit income/cost. See Notes 6 and 7 for additional information.