| **Net Income Per Share (Details) (USD $)In Thousands, except Share data, unless otherwise specified** | 3 Months Ended | 12 Months Ended |
|-------------------------------------------------------------------------------------------------------|----------------|-----------------|
||
| **Earnings Per Share [Abstract]**                                                                     |           |            |   |   |   |   |   |   |   |   |   |
| Net income                                                                                            | $ 11,447       | $ 10,403        | $ 10,815 | $ 11,865 | $ 10,310 | $ 11,236 | $ 9,205 | $ 14,371 | $ 44,530 | $ 45,122 | $ 25,252 |
| Loss on CPP unamortized discount                                                                      |           |            |   |   |   |   |   |   |   |   | (1,401) |
| Loss on extinguishment of trust preferred securities                                                  |           |            |   |   |   |   |   |   |   |   | (10,857) |
| Preferred stock dividends and discount accretion                                                      | (241)          | (430)           | (852) | (857) | (1,135) | (1,134) | (1,135) | (1,135) | (2,380) | (4,539) | (3,981) |
| NET INCOME AVAILABLE TO COMMON STOCKHOLDERS                                                           | 11,206         | 9,973           | 9,963 | 11,008 | 9,175 | 10,102 | 8,070 | 13,236 | 42,150 | 40,583 | 9,013 |
| Net income available to common stockholders                                                           |           |            |   |   |   |   |   |   | $ 42,150 | $ 40,583 | $ 9,013 |
| Net income available to common stockholders (in shares)                                               | 32,597,145     | 28,806,809      | 28,783,407 | 28,716,987 | 28,673,802 | 28,649,996 | 28,624,609 | 28,582,616 | 29,731,420 | 28,632,915 | 26,550,043 |
| Effect of dilutive stock options and warrants (in shares)                                             |           |            |   |   |   |   |   |   | 276,960 | 213,769 | 143,805 |
| Net income available to common stockholders (in shares)                                               | 32,912,605     | 29,081,472      | 29,023,513 | 28,971,238 | 28,930,392 | 28,888,076 | 28,815,019 | 28,754,713 | 30,008,380 | 28,846,684 | 26,693,848 |
| **Basic net income (loss) per share:**                                                                |           |            |   |   |   |   |   |   |   |   |   |
| Net income (loss) available to common stockholders (usd per share)                                    | $ 0.34         | $ 0.35          | $ 0.35 | $ 0.38 | $ 0.32 | $ 0.35 | $ 0.29 | $ 0.46 | $ 1.42 | $ 1.42 | $ 0.34 |
| **Diluted net income (loss) per share:**                                                              |           |            |   |   |   |   |   |   |   |   |   |
| Net income (loss) available to common stockholders (usd per share)                                    | $ 0.34         | $ 0.35          | $ 0.34 | $ 0.38 | $ 0.32 | $ 0.35 | $ 0.28 | $ 0.46 | $ 1.41 | $ 1.41 | $ 0.34 |

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Loss on CPP unamortized discount.
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Loss On Extinguishment Of Trust Preferred Securities
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
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| - Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).
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| - Definition
Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.
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| - Definition
The aggregate value of preferred stock dividends and other adjustments necessary to derive net income apportioned to common stockholders.
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| - Definition
The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.
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| - Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.
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| - Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.
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