Note 5 - Intangible Assets (Details) (USD $)	Jan. 03, 2015	Sep. 27, 2014
Patents and trademarks	$ 2,160,209us-gaap_FiniteLivedPatentsGross	$ 2,153,717us-gaap_FiniteLivedPatentsGross
Trade names	383,257us-gaap_FiniteLivedTradeNamesGross	404,129us-gaap_FiniteLivedTradeNamesGross
Non-competition agreements	167,944	177,090
Customer relationships	2,817,157	2,970,574
Intangible assets, gross	5,528,567	5,705,510
Less accumulated amortization	(2,878,534)	(2,845,250)
Intangible assets, net	$ 2,650,033us-gaap_FiniteLivedIntangibleAssetsNet	$ 2,860,260us-gaap_FiniteLivedIntangibleAssetsNet

Gross carrying amount before accumulated amortization as of the balance sheet date to an asset acquired in a business combination representing a favorable existing relationship with customers having a finite beneficial life.

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=26713463&loc=d3e16323-109275

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- Definition

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

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- Definition

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

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- Definition

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

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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date of payments made to third parties in exchange for their agreement not to engage in specified competitive practices in specified geographic territories for a specified period of time.

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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights.

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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date of the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a reasonably expected period of economic benefit.

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