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Note 7 - Long-term Debt and Note Payable to Bank (Details Textual) - USD ($)
6 Months Ended 12 Months Ended
Oct. 01, 2018
Oct. 31, 2018
Apr. 10, 2018
Oct. 31, 2017
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months   $ 260,954    
Long-term Debt, Maturities, Repayments of Principal in Year Two   3,270,918    
Long-term Debt, Maturities, Repayments of Principal in Year Three   282,651    
Long-term Debt, Maturities, Repayments of Principal in Year Four   294,181    
Long-term Debt, Maturities, Repayments of Principal in Year Five   306,180    
Pinnacle Financial Partners [Member] | Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity   $ 7,000,000    
Debt Instrument, Interest Rate, Effective Percentage   4.74%    
Long-term Line of Credit, Total   $ 3,000,000   $ 5,700,000
Line of Credit Facility, Remaining Borrowing Capacity   $ 4,000,000   $ 1,300,000
Pinnacle Financial Partners [Member] | Revolving Credit Facility [Member] | Special Project Revolver [Member]        
Line of Credit Facility, Maximum Borrowing Capacity     $ 6,000,000  
Line of Credit Facility, Maximum Amount Outstanding During Period $ 2,800,000      
Pinnacle Financial Partners [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate   2.50%    
Pinnacle Financial Partners [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Special Project Revolver [Member]        
Debt Instrument, Basis Spread on Variable Rate   4.00%    
Pinnacle Financial Partners [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]        
Debt Instrument, Interest Rate, Effective Percentage   2.50%    
Virginia Real Estate Loan and North Carolina Real Estate Loan [Member] | Pinnacle Financial Partners [Member]        
Debt Instrument, Interest Rate, Stated Percentage   3.95%