Note 5 - Earnings Per Share - Calculation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 24, 2023	Jun. 25, 2022	Jun. 24, 2023	Jun. 25, 2022
Net earnings available to common stockholders	$ 34,981	$ 15,563	$ 48,485	$ 29,925
Net earnings available to common stockholders (in shares)	19,257	19,174	19,239	19,131
Net earnings available to common stockholders (in dollars per share)	$ 1.82	$ 0.81	$ 2.52	$ 1.56
Options	$ 0	$ 0	$ 0	$ 0
RSU's and options (in shares)	70	60	60	67
RSU's and options (in dollars per share)	$ (0.01)	$ 0	$ (0.01)	$ 0
Net earnings available to common stockholders plus assumed conversions	$ 34,981	$ 15,563	$ 48,485	$ 29,925
Net earnings available to common stockholders plus assumed conversions (in shares)	19,327	19,234	19,299	19,198
Net earnings available to common stockholders plus assumed conversions (in dollars per share)	$ 1.81	$ 0.81	$ 2.51	$ 1.56