Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Income Taxes [Abstract]
Inventories	$ 2,597	$ 2,774
Employee medical and other benefits	11,161	13,201
Receivable and other allowances	4,375	4,699
Other accrued liabilities	3,133	2,869
Total deferred tax assets	21,266	23,543
Property, plant and equipment	(21,607)	(20,744)
Goodwill	(3,804)	(3,427)
Other	(425)	(274)
Total deferred tax liabilities	(25,836)	(24,445)
Net deferred tax liability	$ (4,570)	$ (902)