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Note 5 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 30, 2017	Sep. 30, 2017
Gross Amount	$ 14,697	$ 11,877
Accumulated Amortization	(4,063)	(3,964)
Net Book Value	10,634	7,913
Customer Relationships [Member]
Gross Amount	9,070	6,500
Accumulated Amortization	(1,142)	(1,018)
Net Book Value	7,928	5,482
Technology-Based Intangible Assets [Member]
Gross Amount	1,800	1,800
Accumulated Amortization	(305)	(283)
Net Book Value	1,495	1,517
Noncompete Agreements [Member]
Gross Amount	3,687	3,577
Accumulated Amortization	(2,611)	(2,663)
Net Book Value	1,076	$ 914
Trade Names [Member]
Gross Amount	140
Accumulated Amortization	(5)
Net Book Value	$ 135

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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