Note 13 - Leases - Supplement Cash Flow and Non-cash Information, Weighted Average Remaining Lease Term and Discount Rate Related to Lease (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2021	Oct. 03, 2020
Cash paid for operating leases included in operating cash flows	$ 1,413	$ 1,301
Right-of-use assets obtained in exchange for new lease obligations	$ 579	$ 1,771
Weighted average lease term (in years) (Year)	1 year 9 months 18 days	2 years 3 months 18 days
Weighted average discount rate	4.10%	4.40%