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Allowance for Loan Losses (Impaired Loans by Class) (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | $ 2,339 | $ 4,806
Related Allowance | 477 | 1,586
Unpaid Principal Balance | 2,404 | 4,863
Commercial loans secured by real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 2,327 | 4,793
Unpaid Principal Balance | 2,392 | 4,850
Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 12 | 13
Unpaid Principal Balance | 12 | 13
Impaired Loans with Specific Allowance [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 1,773 | 4,239
Related Allowance | 477 | 1,586
Impaired Loans with Specific Allowance [Member] | Commercial loans secured by real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 1,773 | 4,239
Related Allowance | 477 | 1,586
Impaired Loans with Specific Allowance [Member] | Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment |  |
Related Allowance |  |
Impaired Loans with no Specific Allowance [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 566 | 567
Impaired Loans with no Specific Allowance [Member] | Commercial loans secured by real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 554 | 554
Impaired Loans with no Specific Allowance [Member] | Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | $ 12 | $ 13

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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953550-111524 + Details
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- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524 + Details
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- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524 + Details
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