Summary Of Significant Accounting Policies (Schedule Of Amounts Reclassified Out Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2025	Sep. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive income (loss) at beginning of period	$ 961	$ (8,640)
Total other comprehensive (loss) income, before tax	(20)	87
Total tax benefit (expense)	5	(20)
Other comprehensive (loss) income, net of tax	(15)	67
Accumulated other comprehensive income (loss) at end of period	946	(8,573)
Defined Benefit Pension Plan [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of unrecognized net (gain) loss	0	147
Postretirement Benefit Plan [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of unrecognized net (gain) loss	(15)	(15)
Amortization of prior service credit	$ (5)	$ (45)

Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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