Prepaid Royalties (Details Narrative) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jul. 02, 2017	Jun. 26, 2016	Jul. 02, 2017	Jun. 26, 2016
Prepaid Royalties
Commercial useful life of patent			7 years
Patent license net amount	$ 68		$ 68
Amortized royalty expense	$ 8	$ 8	$ 22	$ 22

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite 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=66006027&loc=d3e16323-109275

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant