Benefit And Retirement Plans (Schedule Of Multiemployer Plans) (Details) $ in Thousands	12 Months Ended
Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)
Multiemployer Plans [Line Items]
Multiemployer Plan, Period Contributions	$ 573	$ 501	$ 480
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	$ 154	$ 150	166
Multiemployer Plans, Surcharge	No
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date	Mar. 31, 2022
Steelworkers Pension Trust [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan, number of employees	175
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	$ 412	$ 345	308
Multiemployer Plans, Surcharge	No
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date	Apr. 10, 2020
Central Pension Fund [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan, number of employees	2
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	$ 7	$ 6	$ 6
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 12
-Subsection b-2

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Number of Company Employees in multiemployer plan

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Amount of contributions made to multiemployer plan by employer.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 9
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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

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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

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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".

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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.

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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".

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