Note 5 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 28, 2019	Sep. 28, 2019
Gross	$ 12,810	$ 12,810
Accumulated Amortization	(4,473)	(4,200)
Net Book Value	8,337	8,610
Customer Relationships [Member]
Gross	9,070	9,070
Accumulated Amortization	(2,359)	(2,207)
Net Book Value	6,711	6,863
Technology-Based Intangible Assets [Member]
Gross	1,800	1,800
Accumulated Amortization	(483)	(461)
Net Book Value	1,317	1,339
Noncompete Agreements [Member]
Gross	1,800	1,800
Accumulated Amortization	(1,556)	(1,466)
Net Book Value	244	334
Trade Names [Member]
Gross	140	140
Accumulated Amortization	(75)	(66)
Net Book Value	$ 65	$ 74