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Loans Nonaccrual Loans (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	$ 20,924	$ 19,150	$ 24,438
Commercial Real Estate [Member]
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	4,599	4,603	7,160
Commercial Real Estate Construction Financing Receivable [Member]
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	1,045	101	946
Commercial Other [Member]
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	3,152	3,459	2,634
Municipal [Member]
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	0	0	0
Residential Term [Member]
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	11,098	10,333	10,893
Residential Construction [Member]
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	0	0	1,454
Home Equity [Member]
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	1,030	654	1,336
Consumer Loan [Member]
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	$ 0	$ 0	$ 15

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5111-111524

+ Details

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