Note A - Summary of Significant Accounting Policies - Calculation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 24, 2022	Sep. 25, 2021	Sep. 26, 2020
Net earnings available to common stockholders	$ 47,235	$ 55,607	$ 18,305
Net earnings available to common stockholders (in shares)	19,148	19,013	18,901
Net earnings available to common stockholders (in dollars per share)	$ 2.47	$ 2.92	$ 0.97
Options, shares	$ 0	$ 0	$ 0
Options, shares (in shares)	65	120	131
Options, per share (in dollars per share)	$ (0.01)	$ (0.01)	$ (0.01)
Net earnings available to common stockholders plus assumed conversions	$ 47,235	$ 55,607	$ 18,305
Net earnings available to common stockholders plus assumed conversions (in shares)	19,213	19,133	19,032
Net earnings available to common stockholders plus assumed conversions (in dollars per share)	$ 2.46	$ 2.91	$ 0.96
Options, per share (in dollars per share)	$ 0.01	$ 0.01	$ 0.01