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Allowance for Loan Losses, Nonperforming Assets and Impaired Loans, Troubled Debt Restructurings (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2012 Contract | Mar. 31, 2013 Contract
Financing Receivable Modifications [Abstract] |  |
Number of Contracts | 5 | 2
Pre-Modification Outstanding Principal Balance | $ 465 | $ 3,654
Post-Modification Outstanding Principal Balance | 493 | 3,739
Impairment Accrued | 156 |
Increase in balance of trouble debt restructurings | 10 |
Troubled debt restructurings total | 7,281 | 7,423
Troubled debt restructurings special allocation | 289 | 1
Financing Receivable Modifications Subsequent Default [Abstract] |  |
Number of Contracts | 4 | 4
Principal balance | 392 | 1,071
Construction other [Member] |  |
Financing Receivable Modifications [Abstract] |  |
Number of Contracts |  | 1
Pre-Modification Outstanding Principal Balance |  | 3,500
Post-Modification Outstanding Principal Balance |  | 3,500
Consumer Real Estate [Member] | Closed-end First Liens [Member] |  |
Financing Receivable Modifications [Abstract] |  |
Number of Contracts | 3 |
Pre-Modification Outstanding Principal Balance | 305 |
Post-Modification Outstanding Principal Balance | 324 |
Impairment Accrued | 47 |
Financing Receivable Modifications Subsequent Default [Abstract] |  |
Number of Contracts | 1 | 1
Principal balance | 17 | 101
Consumer Real Estate [Member] | Closed-end Junior Liens [Member] |  |
Financing Receivable Modifications [Abstract] |  |
Number of Contracts | 1 |
Pre-Modification Outstanding Principal Balance | 143 |
Post-Modification Outstanding Principal Balance | 147 |
Impairment Accrued | 109 |
Financing Receivable Modifications Subsequent Default [Abstract] |  |
Number of Contracts |  | 1
Principal balance |  | 88
Consumer Non Real Estate [Member] | Commercial and Industrial [Member] |  |
Financing Receivable Modifications Subsequent Default [Abstract] |  |
Number of Contracts |  | 1
Principal balance |  | 219
Consumer Non Real Estate [Member] | Other Consumer Loans [Member] |  |
Financing Receivable Modifications Subsequent Default [Abstract] |  |
Number of Contracts | 1 |
Principal balance | 67 |
Commercial Real Estate [Member] | Commercial Real Estate, Owner Occupied [Member] |  |
Financing Receivable Modifications [Abstract] |  |
Number of Contracts | 1 | 1
Pre-Modification Outstanding Principal Balance | 17 | 154
Post-Modification Outstanding Principal Balance | 22 | 239
Impairment Accrued | 0 |
Financing Receivable Modifications Subsequent Default [Abstract] |  |
Number of Contracts |  | 1
Principal balance |  | 663
Commercial Real Estate [Member] | Multifamily real estate [Member] |  |
Financing Receivable Modifications Subsequent Default [Abstract] |  |
Number of Contracts | 1 |
Principal balance | 250 |
Commercial Non Real Estate [Member] | Commercial and Industrial [Member] |  |
Financing Receivable Modifications Subsequent Default [Abstract] |  |
Number of Contracts | 1 |
Principal balance | $ 58 |

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- Definition Represents the amount of investment in troubled debt restructures that exceeds fair value, as determined by the impairment measurement, as of the end of the period. + References No definition available. + Details
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- Definition Refers to increase in loans previously modified and reported as trouble debt restructurings in prior quarters. + 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 (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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- 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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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953682-111524 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953682-111524 + Details
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- Definition Amount of receivables for which the allowance for credit losses had previously been measured under a general allowance for credit losses methodology, and are now identified as troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 65 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7484272&loc=SL7484277-172609 + Details
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