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Note 7 - Bank Debt - Summary of Loan Balances (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Total Bank Debt $ 9,628,602 $ 5,274,235
Less: Current Portion 1,333,333 500,000
Non-Current Bank Debt 8,295,269 4,774,235
Less: Unamortized Debt Costs 100,590 41,685
Net Non-Current Bank Debt 8,194,679 4,732,550
Term Debt [Member]    
Total Bank Debt 5,444,444 1,750,000
Line of Credit [Member]    
Total Bank Debt $ 4,184,158 $ 3,524,235