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Note 14 - Derivative Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2019
Notes Tables |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] |
Derivatives not designated as hedging instruments |  | Balance Sheet Location |  |  | December 31, 2018 |  |  |  | December 31, 2019 |
Interest rate swap contract |  | Current liabilities – Derivatives |  |  | 41,435 |  |  |  | - |
Total derivative liabilities |  |  |  |  | 41,435 |  |  |  | - |
Derivative Instruments, Gain (Loss) [Table Text Block] |
Derivatives not designated as hedging instruments |  | Location of gain (loss) recognized |  |  | Year Ended December 31, 2017 |  |  |  | Year Ended December 31, 2018 |  |  |  | Year Ended December 31, 2019 |
Interest rate swap contract– Unrealized (loss) / gain |  | (Gain) / loss on derivativtes, net |  |  | (5,901 | ) |  |  | 204,647 |  |  |  | - |
Interest rate swap contract - Realized gain / (loss) |  | Gain / (loss) on derivatives, net |  |  | 19,071 |  |  |  | (201,745 | ) |  |  | (2,885 | )
Total net gain / (loss) on interest rate swap contract |  |  |  |  | 13,170 |  |  |  | 2,902 |  |  |  | (2,885 | )
FFA contracts not designated as hedging instruments |  |  | Location of gain (loss) recognized |  |  | Year Ended December 31, 2017 |  |  |  | Year Ended December 31, 2018 |  |  | Year Ended December 31, 2019
FFA contracts – Unrealized loss |  |  | Gain / (loss) on derivatives, net |  |  | (781 | ) |  |  | - |  |  |  | - |
FFA contracts – Realized loss |  |  | Gain / (loss) on derivatives, net |  |  | - |  |  |  | (47,245 | ) |  |  | - |
Total loss on FFA contracts |  |  |  |  |  | (781 | ) |  |  | (47,245 | ) |  |  | - |

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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624181-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
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