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v3.3.1.900

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income [Member]
--- | --- | --- | --- | --- | ---
Balance, value at Dec. 31, 2012 | $ 274,604 | $ 9,724 | $ 26,117 | $ 236,453 | $ 2,310
Balance, shares at Dec. 31, 2012 |  | 18,670,566 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 22,384 | $ 0 | 0 | 22,384 | 0
Unrealized loss on investment, net of tax effect | 1,077 | 0 | 0 | 0 | 1,077
Share-based compensation | 784 | 0 | 912 | (128) | 0
Exercise of stock options and similar instruments, value | 69 | $ 23 | 46 | 0 | 0
Exercise of stock options and similar instruments, shares |  | 43,665 |  |  |
Employee stock purchase plan, value | $ 722 | $ 16 | 706 | 0 | 0
Employee stock purchase plan, shares | 30,869 | 30,869 |  |  |
Dividend reinvestment and stock purchase plan, value | $ 84 | $ 2 | 82 | 0 | 0
Dividend reinvestment and stock purchase plan, shares |  | 3,111 |  |  |
Reclassification adjustment for gain realized on investment, net of tax effect of $805 | 0 |  |  |  |
Common stock issued, shares |  | 1,421,000 |  |  |
Common stock issued | 35,894 | $ 740 | 35,154 |  |
Dividends | (14,443) | 0 | 0 | (14,443) | 0
Balance, value at Dec. 31, 2013 | 321,175 | $ 10,505 | 63,017 | 244,266 | 3,387
Balance, shares at Dec. 31, 2013 |  | 20,169,211.000 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 51,806 | $ 0 | 0 | 51,806 | 0
Unrealized loss on investment, net of tax effect | 301 | 0 | 0 | 0 | 301
Share-based compensation | 909 | 0 | 1,031 | (122) | 0
Exercise of stock options and similar instruments, value | 1,439 | $ 42 | 1,397 | 0 | 0
Exercise of stock options and similar instruments, shares |  | 80,796 |  |  |
Employee stock purchase plan, value | $ 839 | $ 19 | 820 | 0 | 0
Employee stock purchase plan, shares | 35,682 | 35,682 |  |  |
Dividend reinvestment and stock purchase plan, value | $ 34 | $ 1 | 33 | 0 | 0
Dividend reinvestment and stock purchase plan, shares |  | 1,151 |  |  |
Reclassification adjustment for gain realized on investment, net of tax effect of $805 | (1,171) | $ 0 | 0 | 0 | (1,171)
Dividends | (15,177) | 0 | 0 | (15,177) | 0
Balance, value at Dec. 31, 2014 | $ 360,155 | $ 10,567 | 66,298 | 280,773 | 2,517
Balance, shares at Dec. 31, 2014 | 20,286,840 | 20,286,840.00 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | $ 37,882 | $ 0 | 0 | 37,882 | 0
Unrealized loss on investment, net of tax effect | (206) | 0 | 0 | 0 | (206)
Share-based compensation | 1,489 | 0 | 1,603 | (114) | 0
Exercise of stock options and similar instruments, value | (111) | $ 32 | (143) | 0 | 0
Exercise of stock options and similar instruments, shares |  | 61,791 |  |  |
Employee stock purchase plan, value | $ 895 | $ 17 | 878 | 0 | 0
Employee stock purchase plan, shares | 33,318 | 33,318 |  |  |
Reclassification adjustment for gain realized on investment, net of tax effect of $805 | $ 0 |  |  |  |
Dividends | (15,885) | $ 0 | 0 | (15,885) | 0
Balance, value at Dec. 31, 2015 | $ 383,783 | $ 10,616 | $ 68,636 | 302,220 | $ 2,311
Balance, shares at Dec. 31, 2015 | 20,381,949 | 20,381,949.000 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | $ (436) |  |  | $ (436) |

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