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Note 7 - Long-term Debt and Notes Payable (Details Textual) - USD ($)
12 Months Ended
Jul. 24, 2020
Oct. 31, 2022
Jul. 05, 2022
Jul. 04, 2022
Oct. 31, 2021
Long-Term Debt, Maturity, Year One   $ 338,094      
Long-Term Debt, Maturity, Year Two   4,190,508      
Long-Term Debt, Maturity, Year Three   5,999,663      
Pinnacle Financial Partners [Member] | Revolving Credit Facility [Member]          
Long-Term Line of Credit, Total   6,000,000.0     $ 3,500,000
Line of Credit Facility, Remaining Borrowing Capacity   $ 5,900,000     $ 4,400,000
Pinnacle Financial Partners [Member] | Virginia Real Estate Loan and North Carolina Real Estate Loan [Member]          
Debt Instrument, Interest Rate, Stated Percentage   3.95%      
North Mill Capital LLC [Member] | Revolving Credit Facility [Member]          
Line of Credit Facility, Restricted Capacity for Advances   $ 1,150,000 $ 1,150,000 $ 1,500,000  
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, Maximum Borrowing Capacity   $ 18,000,000      
Debt Instrument, Interest Rate, Effective Percentage 4.75% 7.75%      
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%