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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
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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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

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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

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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

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