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8. Employee Benefit Plans (Detail) - Schedule of Periodic Benefit Costs (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Apr. 29, 2012
May 01, 2011
Net periodic benefit cost    
Service cost $ 64 $ 131
Interest cost 74 84
Actuarial gain (15) (81)
Net periodic benefit cost $ 124 $ 134