Note G - Pension and Other Postretirement Benefit Plans (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax	$ 191	$ 29	$ 470	$ 1,240
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax	10	$ (1)	2	$ (5)
Pension Plan [Member]
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year	$ 662		662
Defined Benefit Plan, Plan Assets, Contributions by Employer			$ 634