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Loans and Allowance for Loan Losses (Details 8) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 Contract | Dec. 31, 2011 Contract
Loans modified as troubled debt restructurings |  |
Financing Receivable Modification, Number of Contracts | 29 | 90
Financing Receivable Modification, Pre-Modification Recorded Principal Balance | $ 32,089,000 | $ 30,300,000
Financing Receivable Modification, Post-Modification Recorded Principal Balance | 32,084,000 | 29,623,000
Commercial and industrial [Member] |  |
Loans modified as troubled debt restructurings |  |
Financing Receivable Modification, Number of Contracts | 8 | 26
Financing Receivable Modification, Pre-Modification Recorded Principal Balance | 1,357,000 | 4,942,000
Financing Receivable Modification, Post-Modification Recorded Principal Balance | 1,353,000 | 4,936,000
Vacant land, land development and residential construction [Member] |  |
Loans modified as troubled debt restructurings |  |
Financing Receivable Modification, Number of Contracts | 0 | 13
Financing Receivable Modification, Pre-Modification Recorded Principal Balance | 0 | 5,543,000
Financing Receivable Modification, Post-Modification Recorded Principal Balance | 0 | 5,542,000
Real estate - owner occupied [Member] |  |
Loans modified as troubled debt restructurings |  |
Financing Receivable Modification, Number of Contracts | 6 | 11
Financing Receivable Modification, Pre-Modification Recorded Principal Balance | 1,745,000 | 6,727,000
Financing Receivable Modification, Post-Modification Recorded Principal Balance | 1,744,000 | 6,220,000
Real estate - non-owner occupied [Member] |  |
Loans modified as troubled debt restructurings |  |
Financing Receivable Modification, Number of Contracts | 15 | 16
Financing Receivable Modification, Pre-Modification Recorded Principal Balance | 28,987,000 | 8,921,000
Financing Receivable Modification, Post-Modification Recorded Principal Balance | 28,987,000 | 8,918,000
Real estate - multi-family and residential rental [Member] |  |
Loans modified as troubled debt restructurings |  |
Financing Receivable Modification, Number of Contracts | 0 | 23
Financing Receivable Modification, Pre-Modification Recorded Principal Balance | 0 | 4,002,000
Financing Receivable Modification, Post-Modification Recorded Principal Balance | 0 | 3,842,000
Total commercial [Member] |  |
Loans modified as troubled debt restructurings |  |
Financing Receivable Modification, Number of Contracts | 29 | 89
Financing Receivable Modification, Pre-Modification Recorded Principal Balance | 32,089,000 | 30,135,000
Financing Receivable Modification, Post-Modification Recorded Principal Balance | 32,084,000 | 29,458,000
Home equity and other [Member] |  |
Loans modified as troubled debt restructurings |  |
Financing Receivable Modification, Number of Contracts | 0 | 0
Financing Receivable Modification, Pre-Modification Recorded Principal Balance | 0 | 0
Financing Receivable Modification, Post-Modification Recorded Principal Balance | 0 | 0
1 - 4 family mortgages [Member] |  |
Loans modified as troubled debt restructurings |  |
Financing Receivable Modification, Number of Contracts |  | 1
Financing Receivable Modification, Pre-Modification Recorded Principal Balance |  | 165,000
Financing Receivable Modification, Post-Modification Recorded Principal Balance |  | 165,000
Total retail [Member] |  |
Loans modified as troubled debt restructurings |  |
Financing Receivable Modification, Number of Contracts | 0 | 1
Financing Receivable Modification, Pre-Modification Recorded Principal Balance | 0 | 165,000
Financing Receivable Modification, Post-Modification Recorded Principal Balance | $ 0 | $ 165,000

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