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Note 6 - Long-term Debt and Notes Payable to Bank (Details Textual) - Pinnacle Financial Partners [Member] - USD ($)
$ in Thousands
6 Months Ended
Apr. 30, 2018
Apr. 10, 2018
Oct. 01, 2017
Revolving Credit Facility [Member]      
Line of Credit Facility, Maximum Borrowing Capacity $ 7,000    
Debt Instrument, Interest Rate, Effective Percentage 4.38%    
Long-term Line of Credit, Total $ 7,000   $ 5,700
Line of Credit Facility, Remaining Borrowing Capacity $ 0   $ 1,300
Revolving Credit Facility [Member] | Special Project Revolver [Member]      
Line of Credit Facility, Maximum Borrowing Capacity   $ 6,000  
Debt Instrument, Interest Rate, Effective Percentage 5.94%    
Long-term Line of Credit, Total $ 1,700    
Line of Credit Facility, Remaining Borrowing Capacity $ 4,300    
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Debt Instrument, Basis Spread on Variable Rate 2.50%    
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Special Project Revolver [Member]      
Debt Instrument, Basis Spread on Variable Rate 4.00%    
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]      
Debt Instrument, Interest Rate, Stated Percentage 3.95%