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Non-performing Loans and Impaired Loans (Details Textual) (USD $) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2013 Contract ConsecutivePayment | Dec. 31, 2012
Non-Performing Loans and Impaired Loans (Additional Textual) [Abstract] |  |
Non-accrual loans | $ 13,855,000 | $ 13,374,000
Non-performing TDR's | 6,600,000 |
Loans acquired included in non-accrual loans | 1,700,000 |
Loans acquired included in non-performing TDR's | 841,000 |
Restructured loans with modified recorded balances | 0 |
Minimum period required for satisfactory performance before returning to accrual status | 6 months |
Restructured loan returned to accruing status number of Consecutive Payments of loan | 6 |
Restructured loan reported in TDRs | 11,700,000 |
Number TDR's returned to accrual status | 0 |
Specific reserves allocated to troubled debt restructuring | 2,200,000 |
Loans with an aggregate credit exposure | 500,000 |
Loans classified as TDR after a period | 90 days |
Loan delinquent period | 90 days |
Maximum [Member] |  |
Non-Performing Loans and Impaired Loans (Textual) [Abstract] |  |
Delay or shortfall in payments of loan | 30 days or more |
Minimum [Member] |  |
Non-Performing Loans and Impaired Loans (Textual) [Abstract] |  |
Period for loans moved to non accrual status | 90 days or more |
Performing Financing Receivable [Member] |  |
Non-Performing Loans and Impaired Loans (Textual) [Abstract] |  |
Restructured loan | $ 5,100,000 |
Good Pass [Member] |  |
Non-Performing Loans and Impaired Loans (Textual) [Abstract] |  |
Number of consecutive years of profit Unaudited Financial Information for Good Pass Rating | 5 years |
Number of years of Satisfactory Relationship with bank for Good Pass Rating | 5 years |
Good Pass [Member] | Minimum [Member] |  |
Non-Performing Loans and Impaired Loans (Textual) [Abstract] |  |
Number of consecutive years of profit for Good Pass Rating | 3 years |
Satisfactory Pass [Member] | Minimum [Member] |  |
Non-Performing Loans and Impaired Loans (Textual) [Abstract] |  |
Minimum number of years of Satisfactory Repayment required for Satisfactory Pass Rating | 2 years |

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