Note A - Summary of Significant Accounting Policies - Recognized Share-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 24, 2022	Sep. 25, 2021	Sep. 26, 2020
Share-based compensation expense	$ 3,334	$ 2,975	$ 3,330
The above compensation is net of tax benefits	935	1,224	1,265
Share-Based Payment Arrangement, Option [Member]
Share-based compensation expense	2,407	2,265	2,874
Stock Purchase Plan [Member]
Share-based compensation expense	389	573	390
Stock Issued to Outside Directors [Member]
Share-based compensation expense	0	44	66
Restricted Stock [Member]
Share-based compensation expense	538	93	0
Performance Shares [Member]
Share-based compensation expense	$ 0	$ 0	$ 0