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Note 5 - Earnings Per Common Share (Tables) | 3 Months Ended
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Mar. 31, 2015
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2015 |  |  | 2014 |
Numerator |  |  |  |  |  |  |  |
Net income |  | $ | 12,552 |  |  | $ | 11,641 |
Preferred stock dividends |  |  | (138 | ) |  |  | (138 | )
Net income applicable to common shares for basic and diluted earnings per share |  | $ | 12,414 |  |  | $ | 11,503 |
Denominator |  |  |  |  |  |  |  |
Basic weighted average common shares |  |  | 368,789 |  |  |  | 342,666 |
Dilutive stock options and restricted stock |  |  | 902 |  |  |  | 7,352 |
Diluted weighted average common shares |  |  | 369,691 |  |  |  | 350,018 |
Basic earnings per common share |  |  |  |  |  |  |  |
Net income applicable to common shares |  | $ | 0.03 |  |  | $ | 0.03 |
Diluted earnings per common share |  |  |  |  |  |  |  |
Net income applicable to common shares |  | $ | 0.03 |  |  | $ | 0.03 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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