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Note 8 - Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2014
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | For the three months ended June 30, |  |  | For the six months ended June 30, |
|  | 201 4 |  |  | 201 3 |  |  | 201 4 |  |  | 201 3 |
Net income available to common stockholders |  | $ | 5,347 |  |  | $ | 18,156 |  |  | $ | 11,621 |  |  | $ | 32,206 |
Weighted average number of common shares outstanding |  |  | 43,352,836 |  |  |  | 43,334,441 |  |  |  | 43,348,195 |  |  |  | 43,132,398 |
Effect of stock options and other awards |  |  | 197,293 |  |  |  | 27,114 |  |  |  | 123,685 |  |  |  | 24,429 |
Weighted average diluted number of common shares outstanding |  |  | 43,550,129 |  |  |  | 43,361,555 |  |  |  | 43,471,880 |  |  |  | 43,156,827 |
Basic earnings per share |  | $ | 0.12 |  |  | $ | 0.42 |  |  | $ | 0.27 |  |  | $ | 0.75 |
Diluted earnings per share |  | $ | 0.12 |  |  | $ | 0.42 |  |  | $ | 0.27 |  |  | $ | 0.75 |

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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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