Loans, Allowance For Loan Losses And OREO (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]
Totals: Recorded Investment	$ 19,862	$ 22,338
Totals: Unpaid Principal Balance	21,134	23,897
Totals: Related Allowance	1,556	1,537
Totals: Average Recorded Investment	21,102	23,845
Totals: Interest Income Recognized	229	1,114
Commercial [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowance Recorded: Recorded Investment	3,887	2,530
With No Related Allowance Recorded: Unpaid Principal Balance	4,062	2,683
With No Related Allowance Recorded: Average Recorded Investment	3,209	2,944
With No Related Allowance Recorded: Interest Income Recognized while impaired	27	30
With An Allowance Recorded: Recorded Investment	176	620
With An Allowance Recorded: Unpaid Principal Balance	176	780
With An Allowance Recorded: Related Allowance	176	373
With An Allowance Recorded: Average Recorded Investment	398	1,794
With An Allowance Recorded: Interest Income Recognized	3	42
Totals: Recorded Investment	4,063	3,150
Totals: Unpaid Principal Balance	4,238	3,463
Totals: Related Allowance	176	373
Totals: Average Recorded Investment	3,607	4,738
Totals: Interest Income Recognized	30	72
Commercial Mortgages-Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowance Recorded: Recorded Investment	1,778	2,592
With No Related Allowance Recorded: Unpaid Principal Balance	1,789	2,754
With No Related Allowance Recorded: Average Recorded Investment	2,185	2,402
With No Related Allowance Recorded: Interest Income Recognized while impaired	14	167
With An Allowance Recorded: Recorded Investment	4,141	3,671
With An Allowance Recorded: Unpaid Principal Balance	4,505	3,869
With An Allowance Recorded: Related Allowance	737	525
With An Allowance Recorded: Average Recorded Investment	3,906	3,094
With An Allowance Recorded: Interest Income Recognized	63	226
Totals: Recorded Investment	5,919	6,263
Totals: Unpaid Principal Balance	6,294	6,623
Totals: Related Allowance	737	525
Totals: Average Recorded Investment	6,091	5,496
Totals: Interest Income Recognized	77	393
Commercial Mortgages-Non-Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowance Recorded: Recorded Investment	3,975	6,369
With No Related Allowance Recorded: Unpaid Principal Balance	4,144	6,528
With No Related Allowance Recorded: Average Recorded Investment	5,172	5,625
With No Related Allowance Recorded: Interest Income Recognized while impaired	47	330
With An Allowance Recorded: Recorded Investment	1,169	840
With An Allowance Recorded: Unpaid Principal Balance	1,173	842
With An Allowance Recorded: Related Allowance	198	189
With An Allowance Recorded: Average Recorded Investment	1,005	1,715
With An Allowance Recorded: Interest Income Recognized	12	42
Totals: Recorded Investment	5,144	7,209
Totals: Unpaid Principal Balance	5,317	7,370
Totals: Related Allowance	198	189
Totals: Average Recorded Investment	6,177	7,340
Totals: Interest Income Recognized	59	372
Commercial Construction [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowance Recorded: Recorded Investment	672	740
With No Related Allowance Recorded: Unpaid Principal Balance	672	742
With No Related Allowance Recorded: Average Recorded Investment	706	922
With No Related Allowance Recorded: Interest Income Recognized while impaired	9	52
With An Allowance Recorded: Recorded Investment	731	823
With An Allowance Recorded: Unpaid Principal Balance	956	1,048
With An Allowance Recorded: Related Allowance	107	94
With An Allowance Recorded: Average Recorded Investment	777	1,262
With An Allowance Recorded: Interest Income Recognized		2
Totals: Recorded Investment	1,403	1,563
Totals: Unpaid Principal Balance	1,628	1,790
Totals: Related Allowance	107	94
Totals: Average Recorded Investment	1,483	2,184
Totals: Interest Income Recognized	9	54
Consumer Unsecured [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowance Recorded: Recorded Investment
With No Related Allowance Recorded: Unpaid Principal Balance
With No Related Allowance Recorded: Average Recorded Investment
With No Related Allowance Recorded: Interest Income Recognized while impaired
With An Allowance Recorded: Recorded Investment	1	1
With An Allowance Recorded: Unpaid Principal Balance	1	1
With An Allowance Recorded: Related Allowance	1	1
With An Allowance Recorded: Average Recorded Investment	1	1
Totals: Recorded Investment	1	1
Totals: Unpaid Principal Balance	1	1
Totals: Related Allowance	1	1
Totals: Average Recorded Investment	1	1
Consumer Secured [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowance Recorded: Recorded Investment	355	469
With No Related Allowance Recorded: Unpaid Principal Balance	355	554
With No Related Allowance Recorded: Average Recorded Investment	412	381
With No Related Allowance Recorded: Interest Income Recognized while impaired	5	34
With An Allowance Recorded: Recorded Investment	401	530
With An Allowance Recorded: Unpaid Principal Balance	401	530
With An Allowance Recorded: Related Allowance	179	195
With An Allowance Recorded: Average Recorded Investment	466	736
With An Allowance Recorded: Interest Income Recognized	7	35
Totals: Recorded Investment	756	999
Totals: Unpaid Principal Balance	756	1,084
Totals: Related Allowance	179	195
Totals: Average Recorded Investment	878	1,117
Totals: Interest Income Recognized	12	69
Residential Mortgages [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowance Recorded: Recorded Investment	1,431	2,138
With No Related Allowance Recorded: Unpaid Principal Balance	1,467	2,263
With No Related Allowance Recorded: Average Recorded Investment	1,785	1,500
With No Related Allowance Recorded: Interest Income Recognized while impaired	22	112
With An Allowance Recorded: Recorded Investment	1,145	1,015
With An Allowance Recorded: Unpaid Principal Balance	1,433	1,303
With An Allowance Recorded: Related Allowance	158	160
With An Allowance Recorded: Average Recorded Investment	1,080	1,469
With An Allowance Recorded: Interest Income Recognized	20	42
Totals: Recorded Investment	2,576	3,153
Totals: Unpaid Principal Balance	2,900	3,566
Totals: Related Allowance	158	160
Totals: Average Recorded Investment	2,865	2,969
Totals: Interest Income Recognized	42	154
Residential Consumer Construction [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowance Recorded: Recorded Investment
With No Related Allowance Recorded: Unpaid Principal Balance
With No Related Allowance Recorded: Average Recorded Investment
With No Related Allowance Recorded: Interest Income Recognized while impaired
With An Allowance Recorded: Recorded Investment
With An Allowance Recorded: Unpaid Principal Balance
With An Allowance Recorded: Related Allowance
With An Allowance Recorded: Average Recorded Investment
With An Allowance Recorded: Interest Income Recognized
Totals: Recorded Investment
Totals: Unpaid Principal Balance
Totals: Related Allowance
Totals: Average Recorded Investment
Totals: Interest Income Recognized

Impaired Financing Receivable With Related Allowance Related Allowance

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- Definition

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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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.

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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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Amount of allowance for credit losses related to recorded investment.

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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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Amount of interest income, recognized on accrual basis, on financing receivables that are recognized as impaired, for which there is no related allowance for credit losses.

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Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses.

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Amount of interest income, recognized on accrual basis, on financing receivables, for which there is a related allowance for credit losses and are recognized as impaired.

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Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.

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