| Other Operating Expenses (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
| Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011 | |
| Other Operating Expenses | ||||
| Printing, postage, and supplies | $ 814 | $ 502 | $ 2,020 | $ 1,597 | 
| Communication expense | 783 | 716 | 2,246 | 2,178 | 
| Technology and data processing | 2,034 | 2,135 | 6,411 | 6,885 | 
| Professional services | 850 | 767 | 2,284 | 2,310 | 
| Marketing and advertising expense | 1,241 | 1,414 | 4,131 | 3,909 | 
| FDIC assessment premiums and other insurance | 593 | 905 | 1,912 | 4,050 | 
| Other taxes | 746 | 711 | 2,262 | 2,121 | 
| Loan related expenses | 489 | 468 | 1,646 | 1,433 | 
| OREO and related costs | 1,035 | 532 | 3,273 | 3,389 | 
| Amortization of core deposit premiums | 1,313 | 1,596 | 4,048 | 4,974 | 
| Acquisition and conversion costs | 426 | |||
| Other expenses | 2,070 | 2,041 | 6,019 | 5,619 | 
| Total other operating expenses | $ 11,968 | $ 11,787 | $ 36,252 | $ 38,891 | 
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- Definition Acquisition and conversion costs. No definition available. 
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- Definition Amortization of core deposit premiums. No definition available. 
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- Definition Foreclosed property expenses. No definition available. 
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- Definition Loan and other real estate owned expense. No definition available. 
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- Details 
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- Definition Expenses incurred for technology and data processing. No definition available. 
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- Definition The amount of expense incurred in the period for communication, which is the exchange of information by several methods. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The premium paid to the Federal Deposit Insurance Corporation for deposit insurance which is included in noninterest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The total expense recognized in the period for promotion, public relations, and brand or product advertising. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition This element represents a sum total of expenses not separately reflected on the income statement for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Other noninterest expenses that are not separately presented in any other noninterest expense category. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The aggregate amount of expenses directly related to the supplies and postage. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Taxes, excluding payroll, income and excise taxes, if not included elsewhere, that could include production, real and personal property, and other selling and distribution-related taxes. No definition available. 
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