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Note 14 - Earnings Per Share (Details) - Basic and Diluted Earnings Per Share Calculation (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Basic and Diluted Earnings Per Share Calculation [Abstract]
Net income	$ 12,685,826us-gaap_NetIncomeLoss	$ 21,217,193us-gaap_NetIncomeLoss	$ 28,958,487us-gaap_NetIncomeLoss
Less: Undistributed earnings allocated to non-vested shares	(26,357)us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	(55,958)us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	(11,220)us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted
Net income attributable to common shareholders, basic	$ 12,659,469us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	$ 21,161,235us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	$ 28,947,267us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Weighted average number of shares outstanding, basic and diluted (in Shares)	39,305,644us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted	28,271,746us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted	20,552,568us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted
Earnings per share, basic and diluted (in Dollars per share)	$ 0.32us-gaap_EarningsPerShareBasicAndDiluted	$ 0.75us-gaap_EarningsPerShareBasicAndDiluted	$ 1.41us-gaap_EarningsPerShareBasicAndDiluted

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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No definition available.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585



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-Publisher FASB

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Other Comprehensive Income

-URI http://asc.fasb.org/extlink&oid=51831270



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Net Income

-URI http://asc.fasb.org/extlink&oid=51831255



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.19)

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913



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-Section S99

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-Number 210

-Section 03

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-Article 5



Reference 9: http://www.xbrl.org/2003/role/presentationRef

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount of undistributed earnings (loss) allocated to participating securities for the diluted earnings (loss) per share or per unit calculation under the two-class method.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

+ References

No definition available.

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