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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 |  |

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