Note A - Summary of Significant Accounting Policies - Recognized Share-based Compensation (Details) - USD ($)	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 24, 2016
Recognized Period Cost	$ 1,923,000	$ (13,000)	$ 395,000
The above compensation is net of tax benefits	1,935,000	3,061,000	1,980,000
Employee Stock Option [Member]
Recognized Period Cost	1,432,000	(436,000)	86,000
Stock Compensation Plan [Member]
Recognized Period Cost	423,000	363,000	305,000
Stock Issued to Outside Directors [Member]
Recognized Period Cost	64,000	56,000
Restricted Stock [Member]
Recognized Period Cost	$ 4,000	$ 4,000	$ 4,000