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Condensed Consolidated Statement of Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified | Total | Preferred Shares [Member] | Common Shares [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Treasury Shares [Member]
--- | --- | --- | --- | --- | --- | ---
Stockholders' Equity, Beginning Balance at Dec. 31, 2012 | $ 335,428 | $ 96,325 | $ 246 | $ 180,289 | $ 117,048 | $ (58,480)
Shares Outstanding, Beginning Balance at Dec. 31, 2012 |  | 4,000 | 21,687,253 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 11,851 |  |  |  | 11,851 |
Fair value over carrying value of preferred shares redeemed | 0 | 2,190 |  |  | (2,190) |
Dividends, Preferred Stock | (1,219) | 0 |  |  | (1,219) |
Common share issuance | 2,461,000 |  | 2,461,000 |  |  |
Net proceeds from issuance of common shares | 54,617 |  | 25 | 54,592 |  |
Preferred shares redeemed during period | 2,000 | (2,000) |  |  |  |
Reclassification of preferred shares redeemed | (50,352) | (50,352) |  |  |  |
Stock options exercised, shares |  |  | 184,832 |  |  |
Stock options exercised | 2,640 |  |  | (1,031) |  | 3,671
Stock-based compensation expense | 1,316 |  |  | 1,316 |  |
Deferral of executive and director compensation | 253 |  |  | 253 |  |
Executive and director deferred compensation distributions shares |  |  | 24,858 |  |  |
Executive and director deferred compensation distributions | 0 |  |  | (493) |  | 493
Stockholders' Equity, Ending Balance at Jun. 30, 2013 | $ 354,534 | $ 48,163 | $ 271 | $ 234,926 | $ 125,490 | $ (54,316)
Shares Outstanding, Ending Balance at Jun. 30, 2013 |  | 2,000 | 24,357,943 |  |  |

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