Loans (Schedule Of Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$ 21,519	$ 24,125
Recorded Investment With Allowance	4,040	3,385
Recorded Investment Without Allowance	8,019	11,016
Total Recorded Investment	12,059	14,401
Related Allowance	1,618	1,421
Average Recorded Investment	12,198	13,769
Interest Income Recognized	41	180
Commercial Real Estate, Construction
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	0
Recorded Investment With Allowance	0	0
Recorded Investment Without Allowance	0	0
Total Recorded Investment	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Commercial Real Estate, Other
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	16,460	19,023
Recorded Investment With Allowance	3,458	2,785
Recorded Investment Without Allowance	4,448	7,053
Total Recorded Investment	7,906	9,838
Related Allowance	1,226	1,262
Average Recorded Investment	7,970	11,048
Interest Income Recognized	0	0
Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	16,460	19,023
Recorded Investment With Allowance	3,458	2,785
Recorded Investment Without Allowance	4,448	7,053
Total Recorded Investment	7,906	9,838
Related Allowance	1,226	1,262
Average Recorded Investment	7,970	11,048
Interest Income Recognized	0	0
Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	696	696
Recorded Investment With Allowance	315	182
Recorded Investment Without Allowance	0	437
Total Recorded Investment	315	619
Related Allowance	315	36
Average Recorded Investment	467	518
Interest Income Recognized	0	0
Residential Real Estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	3,844	3,943
Recorded Investment With Allowance	267	418
Recorded Investment Without Allowance	3,052	3,063
Total Recorded Investment	3,319	3,481
Related Allowance	77	123
Average Recorded Investment	3,279	2,014
Interest Income Recognized	33	149
Home Equity Lines of Credit
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	357	349
Recorded Investment With Allowance	0	0
Recorded Investment Without Allowance	357	349
Total Recorded Investment	357	349
Related Allowance	0	0
Average Recorded Investment	348	140
Interest Income Recognized	4	17
Consumer
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	162	114
Recorded Investment With Allowance	0	0
Recorded Investment Without Allowance	162	114
Total Recorded Investment	162	114
Related Allowance	0	0
Average Recorded Investment	134	49
Interest Income Recognized	$ 4	$ 14

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Average 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 15

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 17

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5258-111524

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- Definition

Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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- Definition

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+ 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

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