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Note 25 - Quarterly Results of Operations (Unaudited) | 12 Months Ended
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Dec. 31, 2016
Notes to Financial Statements |
Quarterly Financial Information [Text Block] | Note 25 – Quarterly Results of Operations (unaudited) The following table reports quarterly results of operations (unaudited) for 2016, 2015 and 2014:
|  | 2016 |
(dollars in thousands except per share data) |  | Fourth Quarter |  |  | Third Quarter |  |  | Second Quarter |  |  | First Quarter |
Total interest income |  | $ | 75,795 |  |  | $ | 72,431 |  |  | $ | 69,772 |  |  | $ | 67,807 |
Total interest expense |  |  | 8,771 |  |  |  | 7,703 |  |  |  | 5,950 |  |  |  | 5,216 |
Net interest income |  |  | 67,024 |  |  |  | 64,728 |  |  |  | 63,822 |  |  |  | 62,591 |
Provision for credit losses |  |  | 2,112 |  |  |  | 2,288 |  |  |  | 3,888 |  |  |  | 3,043 |
Net interest income after provision for credit losses |  |  | 64,912 |  |  |  | 62,440 |  |  |  | 59,934 |  |  |  | 59,548 |
Noninterest income |  |  | 7,014 |  |  |  | 6,405 |  |  |  | 7,575 |  |  |  | 6,290 |
Noninterest expense |  |  | 29,780 |  |  |  | 28,838 |  |  |  | 28,295 |  |  |  | 28,103 |
Income before income tax expense |  |  | 42,146 |  |  |  | 40,007 |  |  |  | 39,214 |  |  |  | 37,735 |
Income tax expense |  |  | 16,429 |  |  |  | 15,484 |  |  |  | 15,069 |  |  |  | 14,413 |
Net income |  |  | 25,717 |  |  |  | 24,523 |  |  |  | 24,145 |  |  |  | 23,322 |
Net income available to common shareholders |  | $ | 25,717 |  |  | $ | 24,523 |  |  | $ | 24,145 |  |  | $ | 23,322 |
Earnings per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic (1) |  | $ | 0.76 |  |  | $ | 0.73 |  |  | $ | 0.72 |  |  | $ | 0.70 |
Diluted (1) |  | $ | 0.75 |  |  | $ | 0.72 |  |  | $ | 0.71 |  |  | $ | 0.68 |
|  | 2015 |
(dollars in thousands except per share data) |  | Fourth Quarter |  |  | Third Quarter |  |  | Second Quarter |  |  | First Quarter |
Total interest income |  | $ | 67,311 |  |  | $ | 63,981 |  |  | $ | 62,423 |  |  | $ | 59,465 |
Total interest expense |  |  | 4,735 |  |  |  | 4,896 |  |  |  | 4,873 |  |  |  | 4,734 |
Net interest income |  |  | 62,576 |  |  |  | 59,085 |  |  |  | 57,550 |  |  |  | 54,731 |
Provision for credit losses |  |  | 4,595 |  |  |  | 3,262 |  |  |  | 3,471 |  |  |  | 3,310 |
Net interest income after provision for credit losses |  |  | 57,981 |  |  |  | 55,823 |  |  |  | 54,079 |  |  |  | 51,421 |
Noninterest income |  |  | 6,492 |  |  |  | 6,099 |  |  |  | 6,233 |  |  |  | 7,804 |
Noninterest expense |  |  | 28,640 |  |  |  | 27,405 |  |  |  | 26,598 |  |  |  | 28,073 |
Income before income tax expense |  |  | 35,833 |  |  |  | 34,517 |  |  |  | 33,714 |  |  |  | 31,152 |
Income tax expense |  |  | 13,485 |  |  |  | 13,054 |  |  |  | 12,776 |  |  |  | 11,734 |
Net income |  |  | 22,348 |  |  |  | 21,463 |  |  |  | 20,938 |  |  |  | 19,418 |
Preferred stock dividends and discount accretion |  |  | 62 |  |  |  | 180 |  |  |  | 179 |  |  |  | 180 |
Net income available to common shareholders |  | $ | 22,286 |  |  | $ | 21,283 |  |  | $ | 20,759 |  |  | $ | 19,238 |
Earnings per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic (1) |  | $ | 0.67 |  |  | $ | 0.64 |  |  | $ | 0.62 |  |  | $ | 0.62 |
Diluted (1) |  | $ | 0.65 |  |  | $ | 0.63 |  |  | $ | 0.61 |  |  | $ | 0.61 |
|  | 2014 |
(dollars in thousands except per share data) |  | Fourth Quarter |  |  | Third Quarter |  |  | Second Quarter |  |  | First Quarter |
Total interest income |  | $ | 56,091 |  |  | $ | 47,886 |  |  | $ | 44,759 |  |  | $ | 42,837 |
Total interest expense |  |  | 4,275 |  |  |  | 3,251 |  |  |  | 2,739 |  |  |  | 2,830 |
Net interest income |  |  | 51,816 |  |  |  | 44,635 |  |  |  | 42,020 |  |  |  | 40,007 |
Provision for credit losses |  |  | 3,700 |  |  |  | 2,111 |  |  |  | 3,134 |  |  |  | 1,934 |
Net interest income after provision for credit losses |  |  | 48,116 |  |  |  | 42,524 |  |  |  | 38,886 |  |  |  | 38,073 |
Noninterest income |  |  | 5,310 |  |  |  | 4,761 |  |  |  | 3,811 |  |  |  | 4,463 |
Noninterest expense |  |  | 29,352 |  |  |  | 25,143 |  |  |  | 22,135 |  |  |  | 23,098 |
Income before income tax expense |  |  | 24,074 |  |  |  | 22,142 |  |  |  | 20,562 |  |  |  | 19,438 |
Income tax expense |  |  | 9,347 |  |  |  | 8,054 |  |  |  | 7,618 |  |  |  | 6,939 |
Net income |  |  | 14,727 |  |  |  | 14,088 |  |  |  | 12,944 |  |  |  | 12,499 |
Preferred stock dividends and discount accretion |  |  | 180 |  |  |  | 151 |  |  |  | 142 |  |  |  | 141 |
Net income available to common shareholders |  | $ | 14,547 |  |  | $ | 13,937 |  |  | $ | 12,802 |  |  | $ | 12,358 |
Earnings per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic (1) |  | $ | 0.51 |  |  | $ | 0.54 |  |  | $ | 0.49 |  |  | $ | 0.48 |
Diluted (1) |  | $ | 0.49 |  |  | $ | 0.52 |  |  | $ | 0.48 |  |  | $ | 0.47 |
(1) Earnings per common share are calculated on a quarterly basis and may not be additive to the year to date amount. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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