Note O - Derivative Financial Instruments - Impact of the Company's Derivative Instruments on the Consolidated Statement of Operations and Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2021	Sep. 24, 2021	Dec. 25, 2020	Sep. 25, 2020	Dec. 31, 2021	Dec. 25, 2020
Unrealized gain (loss) on hedges	$ 735	$ 204	$ 104	$ 75	$ 939	$ 179
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Unrealized Gain (Loss) on Hedges [Member] | Cash Flow Hedging [Member]
Unrealized gain (loss) on hedges	232		104		300	179
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Interest Expense [Member]
Gain (loss) on derivative instruments	98		101		187	199
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member] | Other Nonoperating Income (Expense) [Member]
Gain (loss) on derivative instruments	0		0		0	(13)
Euro Denominated Revolving Loan [Member] | Designated as Hedging Instrument [Member] | Unrealized Gain (Loss) on Hedges [Member] | Net Investment Hedging [Member]
Unrealized gain (loss) on hedges	$ 503		$ 0		$ 639	$ 0