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8. Employee Benefit Plans (Details) - Schedule of Net Benefit Costs - Supplemental Employee Retirement Plan [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Nov. 01, 2015
Nov. 02, 2014
Nov. 01, 2015
Nov. 02, 2014
Net periodic benefit cost        
Service cost $ 101 $ 25 $ 304 $ 76
Interest cost 72 85 217 254
Actuarial gain 45 (13) 133 (38)
Net periodic benefit cost $ 218 $ 97 $ 654 $ 292