| 
       Prepaid Royalties (Details Textuals) (USD $) 
    In Thousands  | 
    3 Months Ended | 9 Months Ended | 
|---|---|---|
| 
       Jul. 01, 2012 
     | 
    
       Jul. 01, 2012 
     | 
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| Finite-Lived Intangible Asset, Useful Life | 7 years | |
| Patent License Unamortised Balance | $ 208 | $ 208 | 
| Amortization of Advance Royalty | $ 0 | $ 0 | 
| X | ||||||||||
| 
         - Definition 
      Describes the amount of unamortised balance of patent license as of balance sheet date. 
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| X | ||||||||||
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         - Details 
      
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         - Details 
      
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