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9. Employee Benefit Plans (Details) - Schedule of Net Benefit Costs (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Aug. 03, 2014
Aug. 04, 2013
Aug. 03, 2014
Aug. 04, 2013
Net periodic benefit cost        
Service cost $ 25 $ 64 $ 51 $ 128
Interest cost 85 73 170 146
Actuarial gain (13) (26) (26) (53)
Net periodic benefit cost $ 97 $ 111 $ 195 $ 221