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Loans and Allowance for Loan Losses (Details 5) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 Contract | Dec. 31, 2011 Contract
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Summary of activity of TDR's |  |
Number of Contracts | 17 |
Pre-Modification Recorded Investment | $ 879 |
Post-Modification Recorded Investment | 879 |
Residential Real Estate [Member] |  |
Summary of activity of TDR's |  |
Number of Contracts | 14 | 14
Pre-Modification Recorded Investment | 660 | 1,011
Post-Modification Recorded Investment | 660 | 1,011
Consumer [Member] |  |
Summary of activity of TDR's |  |
Number of Contracts | 2 |
Pre-Modification Recorded Investment | 21 |
Post-Modification Recorded Investment | 21 |
Commercial Real Estate [Member] |  |
Summary of activity of TDR's |  |
Number of Contracts | 1 |
Pre-Modification Recorded Investment | 198 |
Post-Modification Recorded Investment | $ 198 |

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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 (after 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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- 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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