Allowance For Credit Losses (Impaired Loans by Loan Portfolio) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
Related Allowance, With allowance recorded	$ 1,015	$ 1,185
Recorded Investment, Total	12,323	7,574
Unpaid Principal Balance, Total	13,388	8,788
Related Allowance, Total	1,015	1,185
Average Recorded Investment, Total	8,737	7,356
Interest Income Recognized, Total	372	59
Residential mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	2,386	2,014
Unpaid Principal Balance, With no related allowance recorded	2,883	2,413
Average Recorded Investment, With no related allowance recorded	2,243	1,095
Average Recorded Investment, With allowance recorded		959
Recorded Investment, Total	2,386	2,014
Unpaid Principal Balance, Total	2,883	2,413
Average Recorded Investment, Total	2,243	2,054
Commercial mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	2,807
Unpaid Principal Balance, With no related allowance recorded	2,814
Average Recorded Investment, With no related allowance recorded	699	821
Interest Income Recognized, With no related allowance recorded	1	58
Recorded Investment, With allowance recorded	2,565	2,114
Unpaid Principal Balance, With allowance recorded	2,569	2,116
Related Allowance, With allowance recorded	151	826
Average Recorded Investment, With allowance recorded	985	444
Interest Income Recognized, With allowance recorded	158
Recorded Investment, Total	5,372	2,114
Unpaid Principal Balance, Total	5,383	2,116
Related Allowance, Total	151	826
Average Recorded Investment, Total	1,684	1,265
Interest Income Recognized, Total	159	58
Commercial term [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded		202
Unpaid Principal Balance, With no related allowance recorded	3	566
Average Recorded Investment, With no related allowance recorded	111	206
Interest Income Recognized, With no related allowance recorded	12	1
Average Recorded Investment, With allowance recorded		450
Recorded Investment, Total		202
Unpaid Principal Balance, Total	3	566
Average Recorded Investment, Total	111	656
Interest Income Recognized, Total	12	1
Commercial construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded		312
Unpaid Principal Balance, With no related allowance recorded		634
Average Recorded Investment, With no related allowance recorded	1,855	339
Interest Income Recognized, With no related allowance recorded	130
Recorded Investment, With allowance recorded	4,326	2,720
Unpaid Principal Balance, With allowance recorded	4,864	2,833
Related Allowance, With allowance recorded	864	359
Average Recorded Investment, With allowance recorded	2,628	2,813
Interest Income Recognized, With allowance recorded	66
Recorded Investment, Total	4,326	3,032
Unpaid Principal Balance, Total	4,864	3,467
Related Allowance, Total	864	359
Average Recorded Investment, Total	4,483	3,152
Interest Income Recognized, Total	196
Lease financing [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	28	61
Unpaid Principal Balance, With no related allowance recorded	36	74
Average Recorded Investment, With no related allowance recorded	49	123
Interest Income Recognized, With no related allowance recorded	1
Average Recorded Investment, With allowance recorded		27
Recorded Investment, Total	28	61
Unpaid Principal Balance, Total	36	74
Average Recorded Investment, Total	49	150
Interest Income Recognized, Total	1
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	211	151
Unpaid Principal Balance, With no related allowance recorded	219	152
Average Recorded Investment, With no related allowance recorded	167	79
Interest Income Recognized, With no related allowance recorded	4
Recorded Investment, Total	211	151
Unpaid Principal Balance, Total	219	152
Average Recorded Investment, Total	167	79
Interest Income Recognized, Total	$ 4

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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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