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Note 7 - Long-term Debt and Notes Payable (Details Textual) - USD ($)
12 Months Ended
Jul. 24, 2020
Apr. 15, 2020
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
Proceeds from Paycheck Protection Program Under CARES Act   $ 4,981,400 $ 4,981,400 $ 0 $ 0
Notes Payable, SBA PPP Loan, Periodic Payment,   $ 560,000      
Notes Payable, SBA PPP Loan, Current     1,615,404 0  
Notes Payable, SBA PPP Loan, Noncurrent     3,365,996 0  
Long-Term Debt, Maturity, Year One     1,927,513    
Long-Term Debt, Maturity, Year Two     3,690,835    
Long-Term Debt, Maturity, Year Three     5,326,750    
Long-Term Debt, Maturity, Year Four     4,190,527    
Pinnacle Financial Partners [Member] | Revolving Credit Facility [Member]          
Line of Credit Facility, Maximum Borrowing Capacity $ 6,500,000        
Line of Credit, Current     5,000,000.0 5,700,000  
Line of Credit Facility, Remaining Borrowing Capacity     $ 1,600,000 $ 850,000  
North Mill Capital LLC [Member] | Revolving Credit Facility [Member]          
Line of Credit Facility, Percent of Eligible Accounts 85.00%        
Line of Credit Facility, Percent of Eligible Inventory 35.00%        
Line of Credit Facility, Additional Capacity for Advances $ 5,000,000        
Line of Credit Facility, Restricted Capacity for Advances 1,500,000        
Line of Credit Facility, Maximum Borrowing Capacity $ 18,000,000        
Debt Instrument, Interest Rate, Effective Percentage 4.75%   4.75%    
Debt Instrument, Term (Year) 3 years        
Debt Instrument, Term Extensions (Year) 1 year        
North Mill Capital LLC [Member] | Revolving Credit Facility [Member] | Maximum [Member]          
Debt Instrument, Interest Rate, Effective Percentage 6.00%        
North Mill Capital LLC [Member] | Revolving Credit Facility [Member] | Prime Rate [Member]          
Debt Instrument, Basis Spread on Variable Rate 1.50%        
Virginia Real Estate Loan and North Carolina Real Estate Loan [Member] | Pinnacle Financial Partners [Member]          
Debt Instrument, Interest Rate, Stated Percentage     3.95%