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8. Employee Benefit Plans (Details) - Schedule of Net Benefit Costs - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2017
May 01, 2016
SRIP:    
Consolidated net periodic benefit costs $ 207 $ 244
Supplemental Retirement Income Plan ("SRIP") [Member]    
SRIP:    
Service cost 76 94
Interest cost 86 85
Actuarial loss (gain) 15 (18)
Total 177 161
Supplemental Executive Retirement Plan ("SREP") [Member]    
SRIP:    
Interest cost 21 22
Total 21 22
Pension Plan [Member]    
SRIP:    
Interest cost 173 187
Expected return on pension plan assets (234) (197)
Expected administrative expenses 70 70
Total $ 9 $ 60