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Note 16 - Employee Benefit Plans - Asset Allocation (Details) | Jun. 30, 2021 | Jun. 30, 2020
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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 | 36.00% | 41.00%
Equity Securities [Member] | Foreign Plan [Member] |  |
Asset allocations | 5.00% | 5.00%
Debt Securities [Member] | UNITED STATES |  |
Asset allocations | 43.00% | 38.00%
Debt Securities [Member] | Foreign Plan [Member] |  |
Asset allocations | 70.00% | 64.00%
Hedge Funds, Global Opportunity [Member] | UNITED STATES |  |
Asset allocations | 12.00% | 11.00%
Hedge Funds, Global Opportunity [Member] | Foreign Plan [Member] |  |
Asset allocations | 24.00% | 29.00%
Other Debt Obligations [Member] | UNITED STATES |  |
Asset allocations | 9.00% | 10.00%
Other Debt Obligations [Member] | Foreign Plan [Member] |  |
Asset allocations | 1.00% | 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=123447040&loc=d3e1928-114920 + Details
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