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Summary Of Significant Accounting Policies (Schedule Of Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 28, 2012
Sep. 30, 2011
Finite-Lived Intangible Assets [Line Items]    
Accumulated Amortization $ (6,048) $ (5,135)
Non-amortized trademarks 3,590 3,540
Gross Intangible 10,357 10,538
Total Intangible Assets 4,309 5,403
Patents [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible, Amortized other intangible assets 3,614 3,687
Accumulated Amortization (3,411) (3,430)
Net 203 257
Trademarks [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible, Amortized other intangible assets 1,881 1,976
Accumulated Amortization (1,878) (1,094)
Net 3 882
Other Intangibles [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible, Amortized other intangible assets 1,272 1,335
Accumulated Amortization (759) (611)
Net $ 513 $ 724