Note 9 - Stock-based Compensation - RSU Activity (Details) - Restricted Stock Units (RSUs) [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Restricted stock units outstanding, beginning balance (in shares)	119	105	120
Balance, weighted average grant date fair value (in dollars per share)	$ 32.96	$ 35.07	$ 29.88
Restricted stock units outstanding, granted (in shares)	68	52	57
Weighted average grant date fair value, granted (in dollars per share)	$ 32.77	$ 33.56	$ 30.53
Forfeited, units (in shares)			(10)
Forfeited, weighted average grant date fair value (in dollars per share)			$ 30.36
Vested, units (in shares)	(40)	(38)	(62)
Vested, weighted average grant date fair value (in dollars per share)	$ 35.05	$ 33.02	$ 25.71
Aggregate intrinsic value, vested	$ 1,323	$ 1,322	$ 1,911
Restricted stock units outstanding, ending balance (in shares)	147	119	105
Weighted average grant date fair value, ending balance (in dollars per share)	$ 32.31	$ 32.96	$ 35.07