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Note 16 - Employee Benefit Plans - Asset Allocation (Details) | Jun. 30, 2020 | Jun. 30, 2019
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UNITED STATES |  |
Asset allocations | 100.00% | 100.00%
Foreign Plan [Member] |  |
Asset allocations | 100.00% | 100.00%
Equity Securities [Member] | UNITED STATES |  |
Asset allocations | 41.00% | 31.00%
Equity Securities [Member] | Foreign Plan [Member] |  |
Asset allocations | 5.00% | 20.00%
Debt Securities [Member] | UNITED STATES |  |
Asset allocations | 38.00% | 35.00%
Debt Securities [Member] | Foreign Plan [Member] |  |
Asset allocations | 64.00% | 41.00%
Hedge Funds, Global Opportunity [Member] | UNITED STATES |  |
Asset allocations | 11.00% | 24.00%
Hedge Funds, Global Opportunity [Member] | Foreign Plan [Member] |  |
Asset allocations | 29.00% | 37.00%
Other Debt Obligations [Member] | UNITED STATES |  |
Asset allocations | 10.00% | 10.00%
Other Debt Obligations [Member] | Foreign Plan [Member] |  |
Asset allocations | 2.00% | 2.00%

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- Definition Percentage of actual 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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