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Note H - Employee Benefit Plans - Defined Benefit Pension Plan's Funded Status and Amount Recognized (Details) (Parentheticals)
12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax