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Note H - Employee Benefit Plans - Defined Benefit Pension Plan's Weighted Average Asset Association and Weighted Average Target Allocation (Details) | Jun. 30, 2023 | Jun. 30, 2022
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Weighted-average asset allocation | 100.00% | 100.00%
Target allocation | 100.00% |
Equity Securities [Member] |  |
Weighted-average asset allocation | 64.00% | 49.00%
Target allocation | 53.00% |
Debt Securities [Member] |  |
Weighted-average asset allocation | 14.00% | 20.00%
Target allocation | 41.00% |
Commodity Contract [Member] |  |
Weighted-average asset allocation | 12.00% | 0.00%
Target allocation | 0.00% |
Other Contract [Member] |  |
Weighted-average asset allocation | 10.00% | 31.00%
Target allocation | 6.00% |

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- 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/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -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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- 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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