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8. Employee Benefit Plans (Details) - Schedule of Net Benefit Costs - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 30, 2017
Jul. 31, 2016
Jul. 30, 2017
Jul. 31, 2016
SRIP:        
Consolidated net periodic benefit costs $ 207 $ 243 $ 415 $ 487
Supplemental Retirement Income Plan ("SRIP") [Member]        
SRIP:        
Service cost 76 94 152 187
Interest cost 86 85 172 170
Actuarial loss (gain) 15 (18) 31 (35)
Total 177 161 355 322
Supplemental Executive Retirement Plan ("SREP") [Member]        
SRIP:        
Interest cost 21 22 41 44
Total 21 22 41 44
Pension Plan [Member]        
SRIP:        
Interest cost 173 187 346 376
Expected return on pension plan assets (234) (197) (467) (395)
Expected administrative expenses 70 70 140 140
Total $ 9 $ 60 $ 19 $ 121