Benefit And Retirement Plans (Schedule Of Multiemployer Plans) (Details) $ in Thousands	12 Months Ended
Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
Multiemployer Plans [Line Items]
Multiemployer Plan, Period Contributions	$ 480	$ 553	$ 619
Central States SE and SW Areas Pension Fund [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan, number of employees	9
Entity Tax Identification Number	366044243
Multiemployer Plans, Certified Zone Status	Red	Red
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	Implemented
Multiemployer Plan, Period Contributions	$ 166	$ 200	$ 248
Multiemployer Plans, Surcharge		No
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date			Mar. 31, 2018
Steelworkers Pension Trust [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan, number of employees	171
Entity Tax Identification Number	236648508
Multiemployer Plans, Certified Zone Status	Green	Green
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	No
Multiemployer Plan, Period Contributions	$ 308	$ 347	$ 364
Multiemployer Plans, Surcharge		No
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date			Nov. 04, 2017
Central Pension Fund [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan, number of employees	3
Entity Tax Identification Number	366052390
Multiemployer Plans, Certified Zone Status	Green	Green
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	No
Multiemployer Plan, Period Contributions	$ 6	$ 6	$ 7
Multiemployer Plans, Surcharge		No
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date			Feb. 15, 2023

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation 12B
-Number 240
-Section 12b
-Subsection 1

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- Definition

Number of Company Employees in multiemployer plan

+ References

No definition available.

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- Definition

Amount of contributions made to multiemployer plans by the employer. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

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- Definition

Indicate the multiemployer plan's certified zone status as currently required by the Pension Protection Act of 2006 or a subsequent amendment thereof. The zone status categories are red (critical status), orange (seriously endangered), yellow (endangered), and green (none of the above). The acceptable values are "red", "orange", "yellow", "green", "other", and "NA". A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

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- Definition

Expiration date of the collective bargaining arrangement requiring contributions to the multiemployer plan, in CCYY-MM-DD format. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

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- Definition

Indicate whether a funding improvement plan or rehabilitation plan has been implemented or is pending for a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. The acceptable values are "no", "pending", "implemented", "other", and "NA".

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (f)(1)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Indicate whether the employer paid a surcharge to the pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. The acceptable values are "no", "yes", and "NA".

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

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