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Loans and Allowance for Loan Losses (Details 9) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 Contract | Dec. 31, 2011 Contract
Loans, modified as troubled debt restructurings within the previous twelve months, that became over 30 days past due |  |
Number of Contracts | 0 | 23
Recorded Principal Balance | $ 0 | $ 3,709,000
Total commercial [Member] |  |
Loans, modified as troubled debt restructurings within the previous twelve months, that became over 30 days past due |  |
Number of Contracts | 0 | 23
Recorded Principal Balance | 0 | 3,709,000
Total commercial [Member] | Commercial and industrial [Member] |  |
Loans, modified as troubled debt restructurings within the previous twelve months, that became over 30 days past due |  |
Number of Contracts | 0 | 5
Recorded Principal Balance | 0 | 1,347,000
Total commercial [Member] | Vacant land, land development and residential construction [Member] |  |
Loans, modified as troubled debt restructurings within the previous twelve months, that became over 30 days past due |  |
Number of Contracts | 0 | 2
Recorded Principal Balance | 0 | 297,000
Total commercial [Member] | Real estate - owner occupied [Member] |  |
Loans, modified as troubled debt restructurings within the previous twelve months, that became over 30 days past due |  |
Number of Contracts | 0 | 1
Recorded Principal Balance | 0 | 69,000
Total commercial [Member] | Real estate - non-owner occupied [Member] |  |
Loans, modified as troubled debt restructurings within the previous twelve months, that became over 30 days past due |  |
Number of Contracts | 0 | 5
Recorded Principal Balance | 0 | 1,506,000
Total commercial [Member] | Real estate - multi-family and residential rental [Member] |  |
Loans, modified as troubled debt restructurings within the previous twelve months, that became over 30 days past due |  |
Number of Contracts | 0 | 10
Recorded Principal Balance | 0 | 490,000
Total retail [Member] |  |
Loans, modified as troubled debt restructurings within the previous twelve months, that became over 30 days past due |  |
Number of Contracts | 0 | 0
Recorded Principal Balance | 0 | 0
Total retail [Member] | Home equity and other [Member] |  |
Loans, modified as troubled debt restructurings within the previous twelve months, that became over 30 days past due |  |
Number of Contracts | 0 | 0
Recorded Principal Balance | 0 | 0
Total retail [Member] | 1 - 4 family mortgages [Member] |  |
Loans, modified as troubled debt restructurings within the previous twelve months, that became over 30 days past due |  |
Number of Contracts | 0 | 0
Recorded Principal Balance | $ 0 | $ 0

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