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Note 8 - Net Income Per Common Share | 9 Months Ended
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Sep. 30, 2015
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | Note 8. Net Income per Common Share The calculation of net income per common share for the three and nine months ended September 30, 2015 and 2014 was as follows.
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
(dollars and shares in thousands, except per share data) |  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |
Basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income available to common shareholders |  | $ | 21,283 |  |  | $ | 13,937 |  |  | $ | 61,280 |  |  | $ | 39,097 |
Average common shares outstanding |  |  | 33,401 |  |  |  | 26,024 |  |  |  | 32,625 |  |  |  | 25,978 |
Basic net income per common share |  | $ | 0.64 |  |  | $ | 0.54 |  |  | $ | 1.88 |  |  | $ | 1.50 |
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income available to common shareholders |  | $ | 21,283 |  |  | $ | 13,937 |  |  | $ | 61,280 |  |  | $ | 39,097 |
Average common shares outstanding |  |  | 33,401 |  |  |  | 26,024 |  |  |  | 32,625 |  |  |  | 25,978 |
Adjustment for common share equivalents |  |  | 625 |  |  |  | 630 |  |  |  | 653 |  |  |  | 640 |
Average common shares outstanding-diluted |  |  | 34,026 |  |  |  | 26,654 |  |  |  | 33,278 |  |  |  | 26,618 |
Diluted net income per common share |  | $ | 0.63 |  |  | $ | 0.52 |  |  | $ | 1.84 |  |  | $ | 1.47 |
Anti-dilutive shares |  |  | - |  |  |  | 21 |  |  |  | 11 |  |  |  | 21 |

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