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Note 9 - Stock-based Compensation (Details Textual) - USD ($)		12 Months Ended
	Feb. 11, 2025	Oct. 03, 2026	Sep. 27, 2025	Sep. 28, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 14.54	$ 12.7	$ 13.01
Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		3 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)		10 years
Share-Based Payment Arrangement, Expense		$ 1,400,000	$ 1,400,000	$ 1,400,000
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount		$ 753,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		2 years 2 months 12 days
Restricted Stock Units (RSUs) [Member]
Share-Based Payment Arrangement, Expense		$ 2,041,000	$ 2,070,000	$ 1,730,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		1 year 8 months 15 days
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount		$ 1,200,000
Restricted Stock Units (RSUs) [Member] \| Share-Based Payment Arrangement, Employee [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		3 years
Restricted Stock Units (RSUs) [Member] \| Director [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		1 year
The 2025 Equity Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized	800,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant		753,000