Loans (Schedule Of Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Sep. 30, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$ 24,619	$ 56,013
Recorded Investment With Allowance	2,207	9,006
Recorded Investment Without Allowance	10,789	19,416
Total Recorded Investment	12,996	28,422
Related Allowance	767	1,482
Average Recorded Investment	14,351	26,569
Interest Income Recognized	0	0
Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	23,041	49,402
Recorded Investment With Allowance	1,948	6,882
Recorded Investment Without Allowance	9,647	16,501
Total Recorded Investment	11,595	23,383
Related Allowance	731	1,026
Average Recorded Investment	12,178	23,058
Interest Income Recognized	0	0
Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	479	2,290
Recorded Investment With Allowance	0	1,801
Recorded Investment Without Allowance	408	420
Total Recorded Investment	408	2,221
Related Allowance	0	407
Average Recorded Investment	492	1,098
Interest Income Recognized	0	0
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
Residential Real Estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	1,099	3,901
Recorded Investment With Allowance	259	323
Recorded Investment Without Allowance	734	2,226
Total Recorded Investment	993	2,549
Related Allowance	36	49
Average Recorded Investment	1,514	2,081
Interest Income Recognized	0	0
Home Equity Lines of Credit
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	420
Recorded Investment With Allowance	0	0
Recorded Investment Without Allowance	0	269
Total Recorded Investment	0	269
Related Allowance	0	0
Average Recorded Investment	167	332
Interest Income Recognized	$ 0	$ 0

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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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+ 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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