Earnings (Loss) Per Share (Tables)
 6 Months Ended
Apr. 29, 2018
Earnings Per Share [Abstract]  
Summary of Basic and Diluted Net Income (Loss) Per Share
Basic and diluted net loss per share is calculated as follows (in thousands, except per share amounts):
 
Three Months Ended
 
Six Months Ended
 
April 29, 2018
 
April 30, 2017
 
April 29, 2018
 
April 30, 2017
Numerator
 
 
 
 
 
 
 
Net loss
$
(7,687
)
 
$
(854
)
 
$
(18,381
)
 
$
(5,431
)
Denominator
 
 
 
 
 
 
 
Basic weighted average number of shares
21,032

 
20,921

 
21,030

 
20,919

Diluted weighted average number of shares
21,032

 
20,921

 
21,030

 
20,919

 
 
 
 
 
 
 
 
Net loss per share:
 
 
 
 
 
 
 
Basic
$
(0.37
)
 
$
(0.04
)
 
$
(0.87
)
 
$
(0.26
)
Diluted
$
(0.37
)
 
$
(0.04
)
 
$
(0.87
)
 
$
(0.26
)