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Derivative Financial Instruments (Activity In AOCI) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 29, 2012
Oct. 01, 2011
Derivative Instruments and Hedges, Assets [Abstract]    
Balance at beginning of period $ (165) $ 144
Net increase (decrease) in fair value of derivatives 783 (122)
Tax effect (318) 34
Net deferral in AOCI of derivatives 465 (88)
Reclassification from AOCI into earnings (161) (346)
Tax effect 81 125
Net reclassification from AOCI into earnings (80) (221)
Balance at end of period $ 220 $ (165)