Note G - Pension and Other Postretirement Benefit Plans (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
	Mar. 31, 2023	Mar. 25, 2022	Dec. 30, 2022	Mar. 31, 2023	Mar. 25, 2022
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax	$ 578	$ 505		$ 581	$ 1,512
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax	1	$ 4		5	$ 4
Other Comprehensive Income (Loss), Defined Benefit Plan, Benefit Plan Merger Remeasurement, Reclassification Adjustment from AOCI, after Tax			$ (1,115)
Pension Plan [Member]
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year	$ 700			700
Defined Benefit Plan, Plan Assets, Contributions by Employer				$ 666