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Note 15 - Shareholders' Equity (Details Textual)
 12 Months Ended
Nov. 02, 2021
shares
Oct. 28, 2011
$ / shares
shares
Oct. 31, 2021
shares
Oct. 31, 2020
shares
Jul. 14, 2015
shares
Common Stock, Shares, Outstanding, Ending Balance (in shares)     7,897,477 7,537,087  
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)         400,000
Purchase And Retire Percentage Of Shares In Common Stock Outstanding         6.00%
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased (in shares)     398,400    
Common Stock Dividends, Rights Per Share (in shares)   1      
Minimum Percentage of Stock Owner in Stockholder Protection Rights Agreement   15.00%      
Preferred Stock Dividends, Rights Per Share, No Par Value (in dollars per share) | $ / shares   $ 0      
Preferred Stock, Exercise Price (in dollars per share) | $ / shares   $ 25      
Preferred Stock, Number of Votes   1,000      
Preferred Stock, Dividend Rate, Common Stock Dividend Amount Multiplier   1,000      
Preferred Stock, Redemption Price Per Share (in dollars per share) | $ / shares   $ 0.0001      
Preferred Stock, Capital Shares Reserved for Future Issuance (in shares)     100,000    
Subsequent Event [Member]          
Common Stock Dividends, Rights Per Share (in shares) 1        
Minimum [Member]          
Stock Repurchase Program, Period in Force (Month)     24 months    
Maximum [Member]          
Stock Repurchase Program, Period in Force (Month)     36 months