Note M - 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. 28, 2018	Sep. 28, 2018	Dec. 29, 2017	Sep. 29, 2017	Dec. 28, 2018	Dec. 29, 2017
Income tax expense		$ 1,451		$ 5,925		$ 2,338	$ 1,267
Net income (loss)		4,079	$ 2,903	(4,050)	$ 3,404	6,982	(646)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Actuarial losses	[1]	614		703		1,222	1,445
Transition asset and prior service benefit	[1]	10		10		19	20
Total amortization		624		713		1,241	1,465
Income tax expense		146		674		292	952
Net income (loss)		$ 478		1,734		$ 949	2,208
Other benefit plan adjustments				$ (1,695)			$ (1,695)

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