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Note 12 - Derivatives and Fair Value Disclosures (Tables)

12 Months Ended

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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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).

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