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Note 12 - Derivatives and Fair Value Disclosures (Details) - Financial Instruments - USD ($) | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Interest Rate Swap Agreements | $ 127,555 |
Non-current derivative liabilities | 681,197 | $ 1,873,295
Current derivative liabilities | 297,656 | 583,368
Designated as Hedging Instrument [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Total derivative assets | 127,555 |
Total derivative liabilitiies | 681,197 | 384,589
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Swap Agreements | 127,555 |
Non-current derivative liabilities | 681,197 | 384,589
Not Designated as Hedging Instrument [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Total derivative liabilitiies | 297,656 | 2,072,074
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Non-current derivative liabilities |  | 1,488,706
Current derivative liabilities | $ 297,656 |
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Current derivative liabilities |  | $ 583,368

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