| **Quarterly Results of Operations (Unaudited) (Tables)**  | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
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| **Quarterly Financial Information Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| Quarterly Results of Operations (Unaudited)               | The following table sets forth certain quarterly results for the years ended December 31, 2012 and 2011: 20122011FirstSecondThirdFourthFirstSecondThirdFourthInterest income$43,469$44,169$45,347$42,964$46,366$45,721$45,085$44,073Interest expense7,3536,1165,4454,69910,8899,8749,2347,893Net interest income36,11638,05339,90238,26535,47735,84735,85136,180Provision for loan losses4,8754,5454,6094,5055,5945,6255,5565,855Net interest income after provision for loan losses31,24133,50835,29333,76029,88330,22230,29530,325Non-interest income22,65813,16514,27314,20611,85811,06113,23012,971Non-interest expense34,02834,18034,40434,50333,88134,39934,22233,436Income before income tax expense19,87112,49315,16213,4637,8606,8849,3039,860Income tax expense5,5003,2883,9263,1532,3991,3962,5612,299Net income14,3719,20511,23610,3105,4615,4886,7427,561Loss on CPP unamortized discount(1,401)Loss on extinguishment of trust preferred securities(10,857)Preferred stock dividends(1,135)(1,135)(1,134)(1,135)(988)(990)(868)(1,135)Net income available to common stockholders$13,236$8,070$10,102$9,175$4,473$4,498$(6,384)$6,426Basic EPS$0.46$0.29$0.35$0.32 $0.17$0.18$(0.25)$0.24Diluted EPS$0.46$0.28$0.35$0.32 $0.17$0.18$(0.25)$0.24Average Shares Outstanding:Basic28,582,61628,624,60928,649,99628,673,80225,605,57125,656,82626,367,06728,540,469Diluted28,754,71328,815,01928,888,07628,930,39225,763,37825,782,79926,367,06728,699,505 |

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| - Definition
Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=20225539&loc=d3e1280-108306
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