Note 13 - Employee Benefit Plans (Details) - Assumed health care cost trend rates	12 Months Ended
Jun. 30, 2013	Jun. 30, 2012
Note 13 - Employee Benefit Plans (Details) - Assumed health care cost trend rates [Line Items]
Rate that the cost trend rate gradually declines to	5.00%	5.00%
Year that the rate reaches the rate it is assumed to remain at	2022	2020
Minimum [Member]
Note 13 - Employee Benefit Plans (Details) - Assumed health care cost trend rates [Line Items]
Health care cost trend rate assumed for next year	6.00%	7.00%
Maximum [Member]
Note 13 - Employee Benefit Plans (Details) - Assumed health care cost trend rates [Line Items]
Health care cost trend rate assumed for next year	8.00%	8.50%

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The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.

+ 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 (l)

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Health Care Cost Trend Rate

-URI http://asc.fasb.org/extlink&oid=6514820

+ Details

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- Definition

The ultimate trend rate for health care costs.

+ References

+ Details

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- Definition

Year the ultimate health care cost trend rate is expected to be reached, in CCYY format.

+ References

+ Details

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