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Allowance for Loan Losses (Details 3) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Information regarding loans modified under TDR |  |  |  |
Number of Contracts | $ 1 | $ 1 | $ 2 | $ 15
Pre-modification outstanding recorded investment | 183,000 | 701,000 | 2,609,000 | 13,000,000
Post-modification outstanding recorded investment | 183,000 | 357,000 | 2,609,000 | 12,682,000
Commercial and industrial [Member] |  |  |  |
Information regarding loans modified under TDR |  |  |  |
Number of Contracts |  |  |  |
Pre-modification outstanding recorded investment |  |  |  |
Post-modification outstanding recorded investment |  |  |  |
Consumer and other loans [Member] |  |  |  |
Information regarding loans modified under TDR |  |  |  |
Number of Contracts |  |  |  |
Pre-modification outstanding recorded investment |  |  |  |
Post-modification outstanding recorded investment |  |  |  |
Other real estate loans [Member] | Real estate loans [Member] |  |  |  |
Information regarding loans modified under TDR |  |  |  |
Number of Contracts |  |  | 1 | 12
Pre-modification outstanding recorded investment |  |  | 2,426,000 | 11,724,000
Post-modification outstanding recorded investment |  |  | 2,426,000 | 11,750,000
Construction and land development [Member] | Real estate loans [Member] |  |  |  |
Information regarding loans modified under TDR |  |  |  |
Number of Contracts |  | 1 |  | 1
Pre-modification outstanding recorded investment |  | 701,000 |  | 701,000
Post-modification outstanding recorded investment |  | 357,000 |  | 357,000
Secured by 1-4 family residential [Member] | Real estate loans [Member] |  |  |  |
Information regarding loans modified under TDR |  |  |  |
Number of Contracts | 1 |  | 1 | 2
Pre-modification outstanding recorded investment | 183,000 |  | 183,000 | 575,000
Post-modification outstanding recorded investment | $ 183,000 |  | $ 183,000 | $ 575,000

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