Note 9 - Stock-based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Outstanding, shares (in shares)	466	411	365
Outstanding, weighted average exercise price (in dollars per share)	$ 31.03	$ 30.68	$ 30
Granted, shares (in shares)	112	101	97
Granted, weighted average exercise price (in dollars per share)	$ 33.63	$ 33.22	$ 30.63
Exercised, shares (in shares)	(54)	(38)	(32)
Exercised, weighted average exercise price (in dollars per share)	$ 26.95	$ 30.79	$ 21.29
Exercised, intrinsic value	$ 568	$ 194	$ 350
Forfeited, options (in shares)		(8)	(19)
Forfeited, weighted average exercise price (in dollars per share)		$ 41.86	$ 33.22
Outstanding, shares (in shares)	524	466	411
Outstanding, weighted average exercise price (in dollars per share)	$ 32.01	$ 31.03	$ 30.68
Outstanding, contractual term (Year)	6 years 10 months 20 days
Outstanding, intrinsic value	$ 3,549
Vested and anticipated to vest, shares (in shares)	512
Vested and anticipated to vest, weighted average exercise price (in dollars per share)	$ 31.98
Vested and anticipated to vest, contractual term (Year)	6 years 10 months 2 days
Vested and anticipated to vest, intrinsic value	$ 3,490
Exercisable, shares (in shares)	314
Exercisable, weighted average exercise price (in dollars per share)	$ 31.3
Exercisable, term (Year)	5 years 5 months 15 days
Exercisable, intrinsic value	$ 2,409