Note 9 - Stock-based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Oct. 02, 2021
Outstanding, shares (in shares)	365	428	482
Outstanding, weighted average exercise price (in dollars per share)	$ 30.00	$ 27.72	$ 24.90
Granted, shares (in shares)	97	82	74
Granted, weighted average exercise price (in dollars per share)	$ 30.63	$ 35.32	$ 34.76
Exercised, options (in shares)	(32)	(85)	(128)
Exercised, weighted average exercise price (in dollars per share)	$ 21.29	$ 24.23	$ 21.17
Exercised, intrinsic value	$ 350	$ 1,615	$ 2,212
Forfeited, options (in shares)	(19)	(60)
Forfeited, weighted average exercise price (in dollars per share)	$ 33.22	$ 29.29
Outstanding, shares (in shares)	411	365	428
Outstanding, weighted average exercise price (in dollars per share)	$ 30.68	$ 30.00	$ 27.72
Outstanding, contractual term (Year)	6 years 7 months 2 days
Outstanding, intrinsic value	$ 1,561
Vested and anticipated to vest, shares (in shares)	403
Vested and anticipated to vest, weighted average exercise price (in dollars per share)	$ 30.66
Vested and anticipated to vest, contractual term (Year)	6 years 6 months 14 days
Vested and anticipated to vest, intrinsic value	$ 1,551
Exercisable, shares (in shares)	258
Exercisable, weighted average exercise price (in dollars per share)	$ 29.63
Exercisable, term (Year)	5 years 1 month 2 days
Exercisable, intrinsic value	$ 1,364