Note K - Stockholders' Equity - Reconciliation for the Reclassifications Out of Accumulated Other Comprehensive Income (Loss), Net of Tax (Details) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
		Mar. 26, 2021	Dec. 25, 2020	Sep. 25, 2020	Mar. 27, 2020	Dec. 27, 2019	Sep. 27, 2019	Mar. 26, 2021	Mar. 27, 2020
Income tax expense (benefit)		$ 300			$ (3,145)			$ (3,267)	$ (3,722)
Net loss		166	$ (4,280)	$ (3,937)	(25,176)	$ (6,466)	$ (6,293)	(8,051)	(37,935)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Actuarial losses	[1]	824			670			2,410	2,240
Transition asset and prior service benefit	[1]	(64)			(64)			(190)	(191)
Total amortization		760			606			2,220	2,049
Income tax expense (benefit)		177			490			529	828
Net loss		$ 583			1,593			$ 1,691	2,698
Other benefit plan adjustments					$ (1,477)				$ (1,477)

[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).