Note G - Pension and Other Postretirement Benefit Plans (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 27, 2024	Dec. 29, 2023	Dec. 27, 2024	Dec. 29, 2023
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax	$ (140)	$ (108)	$ (361)	$ (279)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax	13	$ (13)	2	$ (8)
Pension Plan [Member]
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year	$ 535		535
Defined Benefit Plan, Plan Assets, Contributions by Employer			$ 396