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Allowance for Loan Losses TDR's by Class and Specific Reserve (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 loan | Dec. 31, 2012 loan | Sep. 30, 2012 loan
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Number of Loans | 104 | 101 | 91
Balance | $ 29,921 | $ 29,955 | $ 29,349
Specific Reserves | 1,378 | 2,590 | 2,484
Commercial Real Estate Portfolio Segment [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Number of Loans | 20 | 18 | 18
Balance | 13,520 | 11,961 | 12,329
Specific Reserves | 853 | 823 | 823
Commercial Construction [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Number of Loans | 2 | 3 | 2
Balance | 1,364 | 3,319 | 3,099
Specific Reserves | 270 | 969 | 696
Commercial Other [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Number of Loans | 21 | 23 | 20
Balance | 2,828 | 3,074 | 2,614
Specific Reserves | 100 | 574 | 594
Residential Term [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Number of Loans | 55 | 53 | 50
Balance | 11,353 | 10,945 | 10,890
Specific Reserves | 149 | 224 | 371
Home Equity [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Number of Loans | 6 | 4 | 1
Balance | 856 | 656 | 417
Specific Reserves | $ 6 | $ 0 | $ 0

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- Definition Specific allowance for loan and lease losses on receivable financings that are classified as troubled debt restructurings during the period. + 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 The amount of the outstanding recorded investment related to 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 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554 + Details
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