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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified | Total | Common Stock | Treasury Stock | Additional Paid-In Capital | Accumulated Earnings | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2010 | $ 328,721 | $ 191 | $ (12,102) | $ 180,884 | $ 159,483 | $ 265
Beginning Balance, Shares at Dec. 31, 2010 |  | 19,060,649 | (708,608) |  |  |
Comprehensive income: |  |  |  |  |  |
Net income | 24,181 |  |  |  | 24,181 |
Other comprehensive income: |  |  |  |  |  |
Change in unrealized gains (losses), net of tax | 1,986 |  |  |  |  | 1,986
Change in deferred tax valuation allowance | (36) |  |  |  |  | (36)
Comprehensive income | 26,131 |  |  |  |  |
Common stock issued upon exercise of options | 3,339 | 3 |  | 3,336 |  |
Common stock issued upon exercise of options, Shares | 338,350 | 338,350 |  |  |  |
Restricted common stock issued | 210 |  |  | 210 |  |
Restricted common stock issued, Shares |  | 9,513 |  |  |  |
Share-based compensation | 261 |  |  | 261 |  |
Tax benefit of share-based compensation | 1,043 |  |  | 1,043 |  |
Purchase of treasury stock | (10,268) |  | (10,268) |  |  |
Purchase of treasury stock, Shares |  |  | (549,642) |  |  |
Ending Balance at Dec. 31, 2011 | 349,437 | 194 | (22,370) | 185,734 | 183,664 | 2,215
Ending Balance, Shares at Dec. 31, 2011 |  | 19,408,512 | (1,258,250) |  |  |
Comprehensive income: |  |  |  |  |  |
Net income | 29,353 |  |  |  | 29,353 |
Other comprehensive income: |  |  |  |  |  |
Change in unrealized gains (losses), net of tax | 764 |  |  |  |  | 764
Change in deferred tax valuation allowance |  |  |  |  |  |
Comprehensive income | 30,117 |  |  |  |  |
Common stock issued upon exercise of options | 781 | 1 |  | 780 |  |
Common stock issued upon exercise of options, Shares | 86,800 | 86,800 |  |  |  |
Restricted common stock issued | 240 |  |  | 240 |  |
Restricted common stock issued, Shares |  | 18,164 |  |  |  |
Share-based compensation | 226 |  |  | 226 |  |
Tax benefit of share-based compensation | 421 |  |  | 421 |  |
Ending Balance at Dec. 31, 2012 | 381,222 | 195 | (22,370) | 187,401 | 213,017 | 2,979
Ending Balance, Shares at Dec. 31, 2012 | 18,255,226 | 19,513,476 | (1,258,250) |  |  |
Comprehensive income: |  |  |  |  |  |
Net income | 43,637 |  |  |  | 43,637 |
Other comprehensive income: |  |  |  |  |  |
Change in unrealized gains (losses), net of tax | (7,274) |  |  |  |  | (7,274)
Change in deferred tax valuation allowance |  |  |  |  |  |
Comprehensive income | 36,363 |  |  |  |  |
Common stock issued upon exercise of options | 2,344 | 3 |  | 2,341 |  |
Common stock issued upon exercise of options, Shares | 256,300 | 256,300 |  |  |  |
Restricted common stock issued | 557 |  |  | 557 |  |
Restricted common stock issued, Shares |  | 85,654 |  |  |  |
Share-based compensation | 214 |  |  | 214 |  |
Tax benefit of share-based compensation | 2,024 |  |  | 2,024 |  |
Dividends to shareholders | (5,910) |  |  |  | (5,910) |
Ending Balance at Dec. 31, 2013 | $ 416,814 | $ 198 | $ (22,370) | $ 192,537 | $ 250,744 | $ (4,295)
Ending Balance, Shares at Dec. 31, 2013 | 18,597,180 | 19,855,430 | (1,258,250) |  |  |

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