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Note 17 - Employee Benefits - Target Asset Allocations (Details)	Jun. 30, 2017
UNITED STATES
Target asset allocations	100.00%
UNITED KINGDOM
Target asset allocations	100.00%
Equity Securities [Member] | UNITED STATES
Target asset allocations	32.00%
Equity Securities [Member] | UNITED KINGDOM
Target asset allocations	18.00%
Debt Securities [Member] | UNITED STATES
Target asset allocations	33.00%
Debt Securities [Member] | UNITED KINGDOM
Target asset allocations	45.00%
Hedge Funds, Global Opportunity [Member] | UNITED STATES
Target asset allocations	25.00%
Hedge Funds, Global Opportunity [Member] | UNITED KINGDOM
Target asset allocations	32.00%
Other Debt Obligations [Member] | UNITED STATES
Target asset allocations	10.00%
Other Debt Obligations [Member] | UNITED KINGDOM
Target asset allocations	5.00%

X

- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ 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 (d)(5)(i)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

+ Details

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X

- Details

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X

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- Details

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