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Note 16 - Employee Benefit Plans - Asset Allocation (Details) | Jun. 30, 2023 | Jun. 30, 2022
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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 | 35.00% | 33.00%
Equity Securities [Member] | Foreign Plan [Member] |  |
Asset allocations | 0.00% | 6.00%
Debt Securities [Member] | UNITED STATES |  |
Asset allocations | 44.00% | 48.00%
Debt Securities [Member] | Foreign Plan [Member] |  |
Asset allocations | 67.00% | 78.00%
Hedge Funds, Global Opportunity [Member] | UNITED STATES |  |
Asset allocations | 12.00% | 11.00%
Hedge Funds, Global Opportunity [Member] | Foreign Plan [Member] |  |
Asset allocations | 3.00% | 15.00%
Other Debt Obligations [Member] | UNITED STATES |  |
Asset allocations | 9.00% | 8.00%
Other Debt Obligations [Member] | Foreign Plan [Member] |  |
Asset allocations | 30.00% | 1.00%

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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 -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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