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Note 8 - Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2014
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | For the three months ended March 31, |
|  | 2014 |  |  | 2013 |
Net income available to common stockholders |  | $ | 6,274 |  |  | $ | 14,050 |
Weighted average number of common shares outstanding |  |  | 43,343,502 |  |  |  | 42,928,109 |
Effect of stock options |  |  | 50,078 |  |  |  | 21,745 |
Weighted average diluted number of common shares outstanding |  |  | 43,393,580 |  |  |  | 42,949,854 |
Basic earnings per share |  | $ | 0.14 |  |  | $ | 0.33 |
Diluted earnings per share |  | $ | 0.14 |  |  | $ | 0.33 |

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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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