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Note 21 - Dividend Reinvestment Plan (Details) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Dividend Reinvestment Plan [Abstract] |  |  |
Stock Issued During Period, Shares, Dividend Reinvestment Plan | 116,957 us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan | 25,984 us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan | 17,956 us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
Stock Issued During Period, Value, Dividend Reinvestment Plan | $ 2,800,000 us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan | $ 605,000 us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan | $ 291,000 us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan

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- Details
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- Definition Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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- Definition Value of stock issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the holder of the stock to reinvest dividends paid to them by the entity on new issues of stock by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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