Note G - Pension and Other Postretirement Benefit Plans (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 27, 2019	Dec. 28, 2018	Dec. 27, 2019	Dec. 28, 2018
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax	$ 548	$ 478	$ 1,105	$ 949
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax	169	$ 146	338	$ 292
Pension Plan [Member]
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year	$ 1,936		1,936
Defined Benefit Plan, Plan Assets, Contributions by Employer			$ 785