Note 5 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 30, 2019	Sep. 29, 2018
Gross	$ 12,810	$ 14,697
Accumulated Amortization	(3,653)	(4,994)
Net Book Value	9,157	9,703
Customer Relationships [Member]
Gross	9,070	9,070
Accumulated Amortization	(1,902)	(1,598)
Net Book Value	7,168	7,472
Technology-Based Intangible Assets [Member]
Gross	1,800	1,800
Accumulated Amortization	(416)	(371)
Net Book Value	1,384	1,429
Noncompete Agreements [Member]
Gross	1,800	3,687
Accumulated Amortization	(1,286)	(2,994)
Net Book Value	514	693
Trade Names [Member]
Gross	140	140
Accumulated Amortization	(49)	(31)
Net Book Value	$ 91	$ 109