Note 7 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2021	Oct. 03, 2020
Gross	$ 12,320	$ 13,780
Accumulated Amortization	(4,652)	(5,213)
Net Book Value	$ 7,668	$ 8,567
Customer Relationships [Member]
Weighted-Average Useful Life (Year)	17 years 1 month 6 days	17 years 1 month 6 days
Gross	$ 9,870	$ 9,870
Accumulated Amortization	(3,482)	(2,837)
Net Book Value	$ 6,388	$ 7,033
Technology-Based Intangible Assets [Member]
Weighted-Average Useful Life (Year)	20 years	20 years
Gross	$ 1,800	$ 1,800
Accumulated Amortization	(639)	(551)
Net Book Value	$ 1,161	$ 1,249
Noncompete Agreements [Member]
Weighted-Average Useful Life (Year)	5 years	5 years
Gross	$ 400	$ 1,860
Accumulated Amortization	(284)	(1,663)
Net Book Value	$ 116	$ 197
Trade Names [Member]
Weighted-Average Useful Life (Year)	2 years 8 months 12 days	2 years 8 months 12 days
Gross	$ 250	$ 250
Accumulated Amortization	(247)	(162)
Net Book Value	$ 3	$ 88