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Note 7 - Bank Debt - Summary of Loan Balances (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Total Bank Debt $ 12,235,036 $ 5,274,235
Less: Current Portion 1,333,333 500,000
Non-Current Bank Debt 10,901,703 4,774,235
Less: Unamortized Debt Costs 102,730 41,685
Net Non-Current Bank Debt 10,798,973 4,732,550
Term Debt [Member]    
Total Bank Debt 5,777,778 1,750,000
Line of Credit [Member]    
Total Bank Debt $ 6,457,258 $ 3,524,235