Note H - Employee Benefit Plans - Weighted-average Rates Used In Determining Defined Benefit Pension Plan's Net Pension Costs (Details)	12 Months Ended
Jun. 30, 2024	Jun. 30, 2023
Discount rate	5.28%	4.89%
Expected long-term rate of return	6.70%	6.24%

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-8

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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Balance Type:	na
Period Type:	duration