Note 12 - Stock-based Compensation - Unvested Restricted Stock Units and Performance Units (Details) - $ / shares	Sep. 30, 2023	Oct. 01, 2022	Oct. 02, 2021
Number of units (in shares)	207,626	385,250	260,000
Average market price on date of grant (in dollars per share)	$ 29.37	$ 27.85	$ 20.38
The 2020 Stock Plan [Member]
Number of units (in shares)	207,626
Restricted Stock Units (RSUs) [Member] \| The 2020 Stock Plan [Member] \| Vesting On November 2023 [Member]
Number of units (in shares)	95,626
Average market price on date of grant (in dollars per share)	$ 29.07
Restricted Stock Units (RSUs) [Member] \| The 2020 Stock Plan [Member] \| Vesting On November 2024 [Member]
Number of units (in shares)	94,000
Average market price on date of grant (in dollars per share)	$ 31.19
Restricted Stock Units (RSUs) [Member] \| The 2020 Stock Plan [Member] \| Vesting November 2025 [Member]
Number of units (in shares)	1,000
Average market price on date of grant (in dollars per share)	$ 10.61
Performance Shares [Member] \| The 2020 Stock Plan [Member] \| Vesting On November 2024 [Member]
Number of units (in shares)	16,000
Average market price on date of grant (in dollars per share)	$ 22.82
Performance Shares [Member] \| The 2020 Stock Plan [Member] \| Vesting November 2025 [Member]
Number of units (in shares)	1,000
Average market price on date of grant (in dollars per share)	$ 10.61