Annual report pursuant to Section 13 and 15(d)

Stock Compensation Plans - Schedule of Transactions Involving Outstanding Stock Options (Details)

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Stock Compensation Plans - Schedule of Transactions Involving Outstanding Stock Options (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Oct. 28, 2018
Oct. 29, 2017
Oct. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Number of shares, Outstanding Beginning balance (shares) 2,499,922    
Number of shares, Outstanding Ending balance (shares) 1,600,040 2,499,922  
2015 Equity Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Number of shares, Outstanding Beginning balance (shares) 2,499,922 1,921,035  
Number of shares, Granted (shares) 133,181 851,488  
Number of shares, Exercised (shares)   (300)  
Number of shares, Forfeited (shares) (1,033,063) (272,301)  
Number of shares, Outstanding Ending balance (shares) 1,600,040 2,499,922 1,921,035
Number of shares, Unvested (shares) 769,027    
Number of shares, Exercisable (shares) 831,013    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, End of Period [Abstract]      
Weighted average exercise price, Outstanding balance (USD per share) $ 6.32 $ 7.70  
Weighted average exercise price, Granted (USD per share) 4.10 4.46  
Weighted average exercise price, Exercised (USD per share)   6.39  
Weighted average exercise price, Forfeited (USD per share) 7.16 10.24  
Weighted average exercise price, Outstanding balance (USD per share) 5.25 $ 6.32 $ 7.70
Weighted average exercise price, Exercisable (USD per share) $ 6.46    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]      
Weighted average contractual life, Outstanding 7 years 3 months 7 days 8 years 2 months 12 days 8 years 2 months 23 days
Weighted average contractual life, Exercisable 6 years 29 days    
Aggregate Intrinsic Value, Outstanding $ 3,126 $ 6,051 $ 242
Aggregate Intrinsic Value, Unvested 780    
Aggregate Intrinsic Value, Exercisable $ 2,346