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Allowance for Loan Losses (Details Textual) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 Contract | Mar. 31, 2012 Contract | Dec. 31, 2012
Allowance for Loan Losses (Textual) [Abstract] |  |  |
Troubled debt restructurings (TDRs) | $ 6,500,000 |  | $ 6,300,000
TDRs performing under the restructured terms | 4,100,000 |  | 1,600,000
New loans modified under TDRs | 0 | 0 |
Troubled debt restructuring loan subsequent default | $ 0 | $ 0 |

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- Definition Financing receivable subsequent default recorded investment. + References No definition available. + Details
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- Definition Performing troubled debt restructurings. + References No definition available. + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953676-111524 + Details
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- Definition Amount of investment in financing receivables (before modification) modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953676-111524 + Details
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