Note 12 - Employee Benefit and Retirement Plans (Details) - Effect of 1% Change in Assumed Health Care Cost Trend Rates (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Effect of 1% Change in Assumed Health Care Cost Trend Rates [Abstract]
Effect on total of service and interest cost	$ 91	$ 111	$ 104
Effect on postretirement benefit obligation	1,041	1,430	1,067
Effect on total of service and interest cost	(77)	(93)	(87)
Effect on postretirement benefit obligation	$ (881)	$ (1,208)	$ (915)

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Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (m)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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- Definition

Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

+ Details

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- Definition

The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.

+ References

+ Details

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- Definition

The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

+ Details

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