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Note 6 - Long-term Debt and Note Payable to Bank - Long-term Debt (Details) - USD ($)
Jan. 31, 2016
Oct. 31, 2015
Virginia Real Estate Loan [Member]    
Long-term Loan $ 5,323,685 $ 5,374,777
North Carolina Real Estate Loan [Member]    
Long-term Loan 1,834,624 1,852,230
Long-term Loan 7,158,309 7,227,007
Less current installments 284,062 280,999
Long-term debt, excluding current installments $ 6,874,247 $ 6,946,008