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Common Stock Repurchase Program (Detail) - USD ($)
 6 Months Ended 12 Months Ended
Nov. 01, 2015
Nov. 02, 2014
May. 03, 2015
Feb. 25, 2014
Stockholders Equity Note [Line Items]        
Cost of common stock repurchased     $ 745,000  
Common Stock        
Stockholders Equity Note [Line Items]        
Common stock repurchased     43,014  
Cost of common stock repurchased     $ 2,000  
Common Stock Repurchase Program February 25, 2014 [Member] | Common Stock        
Stockholders Equity Note [Line Items]        
Authorization amount for repurchase of common stock       $ 5,000,000
Common stock repurchased 0 43,014    
Cost of common stock repurchased   $ 745,000    
Remaining authorized repurchase amount $ 4,300,000