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Allowance For Loan Losses (Impaired Loans By Class) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | $ 15,252 | $ 19,890 |
Recorded Investment | 15,296 | 19,955 |
Related Allowance | 2,359 | 4,233 |
Average Recorded Investment | 17,678 | 20,871 | 3,900
Interest Income Recognized | 743 | 846 | 309,000
Commercial [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 985 | 599 |
Recorded Investment | 994 | 605 |
Related Allowance | 737 | 544 |
Average Recorded Investment | 1,062 | 604 |
Interest Income Recognized | 53 | 26 |
Commercial Real Estate [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 5,246 | 6,185 |
Recorded Investment | 5,259 | 6,220 |
Related Allowance | 305 | 150 |
Average Recorded Investment | 6,038 | 6,326 |
Interest Income Recognized | 315 | 306 |
Construction And Farmland [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 1,326 | 3,358 |
Recorded Investment | 1,328 | 3,367 |
Related Allowance | 141 | 1,468 |
Average Recorded Investment | 1,386 | 3,478 |
Interest Income Recognized | 27 | 168 |
Residential [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 7,695 | 9,748 |
Recorded Investment | 7,715 | 9,763 |
Related Allowance | 1,176 | 2,071 |
Average Recorded Investment | 9,192 | 10,463 |
Interest Income Recognized | 348 | 346 |
Other Loans [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance |  |  |
Recorded Investment |  |  |
Related Allowance |  |  |
Average Recorded Investment |  |  |
Interest Income Recognized |  |  |
With No Related Allowance [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 9,717 | 8,853 |
Recorded Investment | 9,739 | 8,881 |
Average Recorded Investment | 12,012 | 9,696 |
Interest Income Recognized | 506 | 360 |
With No Related Allowance [Member] | Commercial - Non Real Estate Commercial And Industrial [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance |  | 5 |
Recorded Investment |  | 5 |
Related Allowance |  |  |
Average Recorded Investment |  | 2 |
Interest Income Recognized |  |  |
With No Related Allowance [Member] | Commercial Real Estate Owner Occupied [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 1,632 | 2,521 |
Recorded Investment | 1,636 | 2,529 |
Average Recorded Investment | 2,323 | 2,575 |
Interest Income Recognized | 130 | 132 |
With No Related Allowance [Member] | Commercial Real Estate Non-Owner Occupied [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 2,290 | 2,552 |
Recorded Investment | 2,296 | 2,567 |
Average Recorded Investment | 2,378 | 2,623 |
Interest Income Recognized | 147 | 110 |
With No Related Allowance [Member] | Construction And Farmland Residential [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance |  |  |
Recorded Investment |  |  |
Related Allowance |  |  |
Average Recorded Investment |  |  |
Interest Income Recognized |  |  |
With No Related Allowance [Member] | Construction And Farmland Commercial [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 1,102 | 361 |
Recorded Investment | 1,103 | 361 |
Average Recorded Investment | 1,159 | 466 |
Interest Income Recognized | 18 | 21 |
With No Related Allowance [Member] | Residential Equity Lines [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 287 | 177 |
Recorded Investment | 287 | 177 |
Average Recorded Investment | 469 | 190 |
Interest Income Recognized | 1 |  |
With No Related Allowance [Member] | Residential Single Family [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 4,406 | 3,237 |
Recorded Investment | 4,417 | 3,242 |
Average Recorded Investment | 5,683 | 3,840 |
Interest Income Recognized | 210 | 97 |
With No Related Allowance [Member] | Residential Multifamily [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance |  |  |
Recorded Investment |  |  |
Related Allowance |  |  |
Average Recorded Investment |  |  |
Interest Income Recognized |  |  |
With No Related Allowance [Member] | Other Loans [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance |  |  |
Recorded Investment |  |  |
Related Allowance |  |  |
Average Recorded Investment |  |  |
Interest Income Recognized |  |  |
With An Allowance Recorded [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 5,535 | 11,037 |
Recorded Investment | 5,557 | 11,074 |
Related Allowance | 2,359 | 4,233 |
Average Recorded Investment | 5,666 | 11,175 |
Interest Income Recognized | 237 | 486 |
With An Allowance Recorded [Member] | Commercial - Non Real Estate Commercial And Industrial [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 985 | 594 |
Recorded Investment | 994 | 600 |
Related Allowance | 737 | 544 |
Average Recorded Investment | 1,062 | 602 |
Interest Income Recognized | 53 | 26 |
With An Allowance Recorded [Member] | Commercial Real Estate Owner Occupied [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance |  |  |
Recorded Investment |  |  |
Related Allowance |  |  |
Average Recorded Investment |  |  |
Interest Income Recognized |  |  |
With An Allowance Recorded [Member] | Commercial Real Estate Non-Owner Occupied [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 1,324 | 1,112 |
Recorded Investment | 1,327 | 1,124 |
Related Allowance | 305 | 150 |
Average Recorded Investment | 1,337 | 1,128 |
Interest Income Recognized | 38 | 64 |
With An Allowance Recorded [Member] | Construction And Farmland Residential [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance |  |  |
Recorded Investment |  |  |
Related Allowance |  |  |
Average Recorded Investment |  |  |
Interest Income Recognized |  |  |
With An Allowance Recorded [Member] | Construction And Farmland Commercial [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 224 | 2,997 |
Recorded Investment | 225 | 3,006 |
Related Allowance | 141 | 1,468 |
Average Recorded Investment | 227 | 3,012 |
Interest Income Recognized | 9 | 147 |
With An Allowance Recorded [Member] | Residential Equity Lines [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 358 | 402 |
Recorded Investment | 359 | 404 |
Related Allowance | 252 | 325 |
Average Recorded Investment | 366 | 404 |
Interest Income Recognized | 12 | 13 |
With An Allowance Recorded [Member] | Residential Single Family [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance | 2,644 | 5,932 |
Recorded Investment | 2,652 | 5,940 |
Related Allowance | 924 | 1,746 |
Average Recorded Investment | 2,674 | 6,029 |
Interest Income Recognized | 125 | 236 |
With An Allowance Recorded [Member] | Residential Multifamily [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance |  |  |
Recorded Investment |  |  |
Related Allowance |  |  |
Average Recorded Investment |  |  |
Interest Income Recognized |  |  |
With An Allowance Recorded [Member] | Other Loans [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid Principal Balance |  |  |
Recorded Investment |  |  |
Related Allowance |  |  |
Average Recorded Investment |  |  |
Interest Income Recognized |  |  |

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