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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, 2022 | Jun. 30, 2021
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Weighted-average asset allocation | 100.00% | 100.00%
Equity securities | 100.00% |
Other | 100.00% |
Equity Securities [Member] |  |
Weighted-average asset allocation | 49.00% | 62.00%
Equity securities | 55.00% |
Other | 55.00% |
Debt Securities [Member] |  |
Weighted-average asset allocation | 20.00% | 25.00%
Equity securities | 41.00% |
Other | 41.00% |
Commodity Contract [Member] |  |
Weighted-average asset allocation | 0.00% | 12.00%
Equity securities | 0.00% |
Other | 0.00% |
Other Contract [Member] |  |
Weighted-average asset allocation | 31.00% | 1.00%
Equity securities | 4.00% |
Other | 4.00% |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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