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Note 6 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016
Gross	$ 11,877	$ 11,877
Accumulated Amortization	(3,964)	(2,814)
Net Book Value	$ 7,913	$ 9,063
Customer Relationships [Member]
Weighted-Average Useful Life (Year)	20 years	20 years
Gross	$ 6,500	$ 6,500
Accumulated Amortization	(1,018)	(693)
Net Book Value	$ 5,482	$ 5,807
Technology-Based Intangible Assets [Member]
Weighted-Average Useful Life (Year)	20 years	20 years
Gross	$ 1,800	$ 1,800
Accumulated Amortization	(283)	(192)
Net Book Value	$ 1,517	$ 1,608
Noncompete Agreements [Member]
Weighted-Average Useful Life (Year)	4 years 292 days	4 years 292 days
Gross	$ 3,577	$ 3,577
Accumulated Amortization	(2,663)	(1,929)
Net Book Value	$ 914	$ 1,648

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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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)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount after 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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