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Note 12 - Derivatives and Fair Value Disclosures (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] |
|  |  |  | December 31,
|  |  |  | 2015 |  | 2016
Derivatives designated as hedging instruments |  | Balance Sheet Location |  | Asset Derivatives |  | Liability Derivatives |  | Asset Derivatives |  | Liability Derivatives
Interest Rate Swap Agreements |  | Non current assets — Fair value of derivatives |  |  | 127,555 |  |  |  | — |  |  |  | 263,635 |  |  |  | — |
Interest Rate Swap Agreements |  | Non current liabilities — Fair value of derivatives |  |  | — |  |  |  | 681,197 |  |  |  | — |  |  |  | 364,823 |
Total derivatives designated as hedging instruments |  |  |  |  | 127,555 |  |  |  | 681,197 |  |  |  | 263,635 |  |  |  | 364,823 |
|  |  |  | December 31,
|  |  |  | 2015 |  | 2016
Derivatives designated as hedging instruments |  | Balance Sheet Location |  | Asset Derivatives |  | Liability Derivatives |  | Asset Derivatives |  | Liability Derivatives
Interest Rate Swap Agreements ... |  | Current liabilities — Fair value of derivatives |  |  | — |  |  |  | 297,656 |  |  |  | — |  |  |  | — |
Total derivatives not designated as hedging instruments |  |  |  |  | — |  |  |  | 297,656 |  |  |  | — |  |  |  | — |
Derivative Instruments, Gain (Loss) [Table Text Block] |
|  |  |  | Year Ended December 31,
Derivatives not designated as hedging instruments |  | Location of Gain/(Loss) Recognized |  | 2014 |  | 2015 |  | 2016
Interest Rate Swap — Reclassification from OCI |  | Loss on derivatives |  |  | (49,471 | ) |  |  | — |  |  |  | — |
Interest Rate Swap — Change in Fair Value |  | Loss on derivatives |  |  | 1,652,692 |  |  |  | 1,191,050 |  |  |  | 297,656 |
Interest Rate Swap — Realized loss |  | Loss on derivatives |  |  | (1,857,362 | ) |  |  | (1,243,359 | ) |  |  | (297,954 | )
Foreign Currency Contract — Change in Fair Value |  | Loss on derivatives |  |  | (583,368 | ) |  |  | 583,368 |  |  |  | — |
Foreign Currency Contract — Realized loss.. |  | Loss on derivatives |  |  | (510,875 | ) |  |  | (669,712 | ) |  |  | — |
Total loss on derivatives |  |  |  |  | (1,348,384 | ) |  |  | (138,653 | ) |  |  | (298 | )
|  |  |  | Year Ended December 31,
Derivatives designated as hedging instruments |  | Location of Loss Recognized |  | 2014 |  | 2015 |  | 2016
Interest Rate Swap — Loss reclassified from OCI (Effective portion) |  | Loss on derivatives |  |  | — |  |  |  | (231,931 | ) |  |  | (766,898 | )
Total loss on derivatives |  |  |  |  | — |  |  |  | (231,931 | ) |  |  | (766,898 | )
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Unrealized Gain / (Loss) on cash flow hedges
Balance, January 1, 2014 |  |  | (49,471 | )
Effective portion of changes in fair value of interest swap contracts |  |  | (293,020 | )
Reclassification adjustment |  |  | 49,471 |
Balance, December 31, 2014 |  |  | (293,020 | )
Effective portion of changes in fair value of interest swap contracts |  |  | (100,268 | )
Balance, December 31, 2015 |  |  | (393,288 | )
Effective portion of changes in fair value of interest swap contracts |  |  | 418,723 |
Balance, December 31, 2016 |  |  | 25,435 |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] |
|  |  |  | Fair Value Measurements Using
Description |  | Fair Value as of December 31, 2015 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets/(Liabilities): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Swap Agreements |  |  | 127,555 |  |  |  | — |  |  |  | 127,555 |  |  |  | — |
Interest Rate Swap Agreements |  |  | (978,853 | ) |  |  | — |  |  |  | (978,853 | ) |  |  | — |
Total |  |  | (851,298 | ) |  |  | — |  |  |  | (851,298 | ) |  |  | — |
|  |  |  | Fair Value Measurements Using
Description |  | Fair Value as of December 31, 2016 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets/(Liabilities): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Swap Agreements |  |  | 263,635 |  |  |  | — |  |  |  | 263,635 |  |  |  | — |
Interest Rate Swap Agreements |  |  | (364,823 | ) |  |  | — |  |  |  | (364,823 | ) |  |  | — |
Total |  |  | (101,188 | ) |  |  | — |  |  |  | (101,188 | ) |  |  | — |
Schedule of Fair Value, Assets and Liabilities Measured on Non-recurring Basis [Table Text Block] |
|  |  |  | Fair Value Measurements Using |  |
Description |  | Fair Value as of June 30, 2015 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Impairment Loss
Long-lived assets held and used |  |  | 748,780 |  |  |  | — |  |  |  | 748,780 |  |  |  | — |  |  |  | (3,566,694 | )
Total |  |  | 748,780 |  |  |  | — |  |  |  | 748,780 |  |  |  | — |  |  |  | (3,566,694 | )
|  |  |  | Fair Value Measurements Using |  |
Description |  | Fair Value as of December 31, 2015 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Impairment Loss
Long-lived assets held and used |  |  | 6,841,141 |  |  |  | — |  |  |  | 6,841,141 |  |  |  | — |  |  |  | (4,672,293 | )
Total |  |  | 6,841,141 |  |  |  | — |  |  |  | 6,841,141 |  |  |  | — |  |  |  | (4,672,293 | )
|  |  |  | Fair Value Measurements Using |  |
Description |  | Fair Value as of December 31, 2016 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Impairment Loss
Long-lived assets held and used |  |  | 26,500,000 |  |  |  | — |  |  |  | 26,500,000 |  |  |  | — |  |  |  | (5,735,086 | )
Total |  |  | 26,500,000 |  |  |  | — |  |  |  | 26,500,000 |  |  |  | — |  |  |  | (5,735,086 | )

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a non-recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References No definition available. + Details
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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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959 + Details
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