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Stock-Based Compensation - Stock Option Activity (Details) - USD ($)
9 Months Ended 12 Months Ended
Nov. 02, 2019
Nov. 03, 2018
Feb. 02, 2019
Number of shares      
Options granted 0 153,888  
Employee Stock Plan, 2006 Plan and 2016 Plan      
Aggregate Intrinsic Value      
Outstanding options at beginning of year $ 16,878    
Outstanding options at end of quarter     $ 16,878
Weighted-average exercise price per option      
Outstanding options at beginning of year $ 4.50    
Options expired and canceled 2.50    
Options exercised 2.50    
Outstanding options at end of quarter 4.84   $ 4.50
Options exercisable at end of quarter $ 4.85    
Weighted-average remaining contractual term      
Outstanding options 3 years 4 months 24 days   5 years 1 month 6 days
Options exercisable at end of quarter 3 years 3 months 18 days    
Number of shares      
Outstanding options at beginning of year 957,400    
Options expired and canceled (92,592)    
Options exercised (46,296)    
Outstanding options at end of quarter 818,512   957,400
Options exercisable at end of quarter 813,512