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Income Taxes (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Mar. 29, 2013
Mar. 30, 2012
Mar. 29, 2013
Mar. 30, 2012
Income tax expense $ 4,126 $ 5,995 $ 4,489 $ 5,837
Income Before Income Taxes 13,063 13,278 13,673 10,176
Effective Income Tax Rate 31.60% 45.10% 32.80% 57.40%
Unrecognized Tax Benefit, Interest on Income Tax Expense     125  
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions     $ 310  
Most Recent Open Year [Member] | United States Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2012  
Most Recent Open Year [Member] | Canadian Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2012  
Most Recent Open Year [Member] | French Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2012  
Most Recent Open Year [Member] | German Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2012  
Most Recent Open Year [Member] | Italian Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2012  
Most Recent Open Year [Member] | Japanese Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2012  
Most Recent Open Year [Member] | Swiss Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2012  
Oldest Open Year [Member] | United States Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2009  
Oldest Open Year [Member] | Canadian Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2008  
Oldest Open Year [Member] | French Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2009  
Oldest Open Year [Member] | German Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2009  
Oldest Open Year [Member] | Italian Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2009  
Oldest Open Year [Member] | Swiss Tax Jurisdictions [Member]
       
Tax Years Remaining Subject to Examination     2002