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GUARANTEES (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 25, 2010
GUARANTEES    
Maximum amount of the guarantee $ 700  
Fair value of the loan guarantee recorded in accrued expenses 100 100
Changes in the product warranty accrual recorded in accrued expenses    
Balance, beginning of period 12,016 16,172
Payments made (9,662) (13,301)
Change in liability for warranties issued during the period 12,776 9,849
Change in liability for pre-existing warranties (1,544) (704)
Balance, end of period $ 13,586 $ 12,016