Note 4 - Earnings Per Share - Calculation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended			9 Months Ended
	Jun. 29, 2024	Jun. 24, 2023	Jun. 24, 2023	Jun. 29, 2024	Jun. 24, 2023	Jun. 24, 2023
Net earnings available to common stockholders	$ 36,299	$ 34,981		$ 56,910		$ 48,485
Net earnings available to common stockholders (in shares)	19,396	19,257	19,257	19,373	19,239	19,239
Net earnings available to common stockholders (in dollars per share)	$ 1.87	$ 1.82	$ 1.82	$ 2.94	$ 2.52	$ 2.52
RSU's, PSU’s and options	$ 0	$ 0		$ 0		$ 0
RSU's, PSU’s and options (in shares)	60	70		50		60
RSU's, PSU’s and options (in dollars per share)	$ 0	$ (0.01)		$ (0.01)		$ (0.01)
Net earnings available to common stockholders plus assumed conversions	$ 36,299	$ 34,981		$ 56,910		$ 48,485
Net earnings available to common stockholders plus assumed conversions (in shares)	19,456	19,327	19,327	19,423	19,299	19,299
Net earnings available to common stockholders plus assumed conversions (in dollars per share)	$ 1.87	$ 1.81	$ 1.81	$ 2.93	$ 2.51	$ 2.51