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Note 15 - Shareholders' Equity (Details Textual)
 12 Months Ended
Nov. 02, 2021
shares
Oct. 28, 2011
$ / shares
shares
Oct. 31, 2022
shares
Jul. 14, 2015
shares
Stock Repurchase Program, Number of Shares Authorized to be Repurchased       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 1    
Minimum Percentage of Stock Owner in Stockholder Protection Rights Agreement   15.00%    
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  
Minimum [Member]        
Stock Repurchase Program, Period in Force (Month)     24 months  
Maximum [Member]        
Stock Repurchase Program, Period in Force (Month)     36 months