Note A - Summary of Significant Accounting Policies - Calculation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 24, 2022	Sep. 25, 2021
Net earnings available to common stockholders	$ 78,906	$ 47,235	$ 55,607
Net earnings available to common stockholders (in shares)	19,257	19,148	19,013
Net earnings available to common stockholders (in dollars per share)	$ 4.1	$ 2.47	$ 2.92
Options	$ 0	$ 0	$ 0
Options (in shares)	67	65	120
Options (in dollars per share)	$ (0.02)	$ (0.01)	$ (0.01)
Net earnings available to common stockholders plus assumed conversions	$ 78,906	$ 47,235	$ 55,607
Net earnings available to common stockholders plus assumed conversions (in shares)	19,324	19,213	19,133
Net earnings available to common stockholders plus assumed conversions (in dollars per share)	$ 4.08	$ 2.46	$ 2.91