Note K - Shareholders' Equity - Reconciliation for the Reclassifications Out of Accumulated Other Comprehensive Income (Loss), Net of Tax (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Dec. 27, 2019	Sep. 27, 2019	Dec. 28, 2018	Sep. 28, 2018	Dec. 27, 2019	Dec. 28, 2018
Income tax expense (benefit)		$ 1,040		$ 1,451		$ (578)	$ 2,338
Net (loss) income		(6,466)	$ (6,293)	4,079	$ 2,903	(12,759)	6,982
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Actuarial losses	[1]	781		614		1,571	1,222
Transition asset and prior service benefit	[1]	(64)		10		(128)	19
Total amortization		717		624		1,443	1,241
Income tax expense (benefit)		169		146		338	292
Net (loss) income		$ 548		$ 478		$ 1,105	$ 949

[1] These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note G "Pension and Other Postretirement Benefit Plans" for further details).