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 | 
| X | ||||||||||
- Definition Amount of Amortized expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property. No definition available. 
  | 
| X | ||||||||||
- References No definition available. 
  | 
| 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. No definition available. 
  | 
| X | ||||||||||
- Definition 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 
  |