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9. Employee Benefit Plans (Details) - Schedule of Net Benefit Costs (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Nov. 02, 2014
Nov. 03, 2013
Nov. 02, 2014
Nov. 03, 2013
Net periodic benefit cost        
Service cost $ 25 $ 64 $ 76 $ 192
Interest cost 85 73 254 219
Actuarial gain (13) (26) (38) (79)
Net periodic benefit cost $ 97 $ 111 $ 292 $ 332