v2.4.0.6
Accounting for Guarantees (Details) (USD $)
9 Months Ended
Sep. 29, 2012
Change in the Liability for Product Warranties  
Balance as of January 1, 2012 $ 4,228,000
Payments made under product warranties (3,096,000)
Accrual for product warranties issued 4,110,000
Balance as of Sept 29, 2012 $ 5,242,000