Summary Of Significant Accounting Policies (Schedule Of Amounts Reclassified Out Of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss at beginning of year	$ (8,061)		$ (8,391)
Net (loss) gain arising during the period	(3,563)		96		$ 5,322
Total other comprehensive (loss) income, before tax	(3,167)		524		5,981
Total tax benefit (expense)	1,171		(194)		(2,210)
Other comprehensive (loss) income, net of tax	(1,996)		330		3,771
Accumulated other comprehensive loss at end of year	(10,057)		(8,061)		(8,391)
Pension Benefits [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss at beginning of year	(8,566)
Net (loss) gain arising during the period	(3,408)		65
Amortization of unrecognized net loss (gain)	429	[1]	460	[1]	687
Accumulated other comprehensive loss at end of year	(10,444)		(8,566)
Postretirement Benefits [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss at beginning of year	505
Net (loss) gain arising during the period	(155)		31
Amortization of unrecognized net loss (gain)	(28)	[1]	(27)	[1]	(22)
Amortization of prior service asset	(5)	[1]	(5)	[1]	$ (5)
Accumulated other comprehensive loss at end of year	$ 387		$ 505

[1] Included in the computation of net periodic benefit income/cost. See Notes 12 and 13 for additional information.