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Note 7 - Bank Debt - Summary of Loan Balances (Details) - USD ($)
Dec. 31, 2017
Sep. 30, 2017
Sep. 30, 2016
Total Bank Debt $ 5,274,235 $ 6,919,486
Less: Current Portion 500,000 500,000
Non-Current Bank Debt 4,774,235 6,419,486
Less: Unamortized Debt Costs 41,685 44,663
Net Non-Current Bank Debt 4,732,550 6,374,823
Term Debt [Member]      
Total Bank Debt 1,750,000 1,875,000
Line of Credit [Member]      
Total Bank Debt $ 3,524,235 $ 5,044,486