Pensions And Other Postretirement Benefits (Schedule Of Plan Assets) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 2,097	$ 2,587	$ 2,338
Percentage of Plan Assets	100.00%	100.00%
Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	49	9
Percentage of Plan Assets	2.30%	0.30%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	453	570
Percentage of Plan Assets	21.60%	22.00%
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	755	868
Percentage of Plan Assets	36.00%	33.60%
Cash Surrender Value Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	819	1,113
Percentage of Plan Assets	39.10%	43.00%
Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	21	27
Percentage of Plan Assets	1.00%	1.00%
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,278	1,474
Level 1 [Member] | Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	49	9
Level 1 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	453	570
Level 1 [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	755	868
Level 1 [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	21	27
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	819	1,113
Level 2 [Member] | Cash Surrender Value Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 819	$ 1,113