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Impaired Loans (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | $ 5,061 |  | $ 5,061 |  | $ 13,228
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (2,024) |  | (2,024) |  | (4,018)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 3,037 |  | 3,037 |  | 9,210
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 2,632 |  | 2,632 |  | 1,370
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (262) |  | (262) |  | (45)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 2,370 |  | 2,370 |  | 1,325
Impaired Financing Receivable, With Related Allowance, Related Allowance | 283 |  | 283 |  | 263
Impaired Financing Receivable, Unpaid Principal Balance | 7,693 |  | 7,693 |  | 14,598
Impaired Financing Receivable, Charge-off And Payments Applied | (2,286) |  | (2,286) |  | (4,063)
Impaired Financing Receivable, Recorded Investment | 5,407 |  | 5,407 |  | 10,535
Impaired Financing Receivable, Related Allowance | 283 |  | 283 |  | 263
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 5,308 | 9,746 | 6,817 | 10,309 |
Impaired Financing Receivable, Interest Income, Accrual Method | 16 | 22 | 34 | 43 |
Commercial and Industrial Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 148 |  | 148 |  | 169
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 148 |  | 148 |  | 169
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 150 | 197 | 158 | 205 |
Impaired Financing Receivable, Interest Income, Accrual Method | 2 | 4 | 5 | 8 |
Construction And Land Development Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 2,878 |  | 2,878 |  | 2,879
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (1,681) |  | (1,681) |  | (1,682)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 1,197 |  | 1,197 |  | 1,197
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 461 |  | 461 |  | 471
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (57) |  | (57) |  | (45)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 404 |  | 404 |  | 426
Impaired Financing Receivable, Related Allowance | 107 |  | 107 |  | 129
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 1,607 | 4,185 | 1,614 | 4,595 |
Impaired Financing Receivable, Interest Income, Accrual Method | 0 | 0 | 0 | 0 |
Commercial Real Estate Owner Occupied Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 350 |  | 350 |  | 787
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (51) |  | (51) |  | (212)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 299 |  | 299 |  | 575
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 1,759 |  | 1,759 |  | 899
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (118) |  | (118) |  | 0
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 1,641 |  | 1,641 |  | 899
Impaired Financing Receivable, Related Allowance | 120 |  | 120 |  | 134
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 1,984 | 2,561 | 2,019 | 2,566 |
Impaired Financing Receivable, Interest Income, Accrual Method | 14 | 18 | 29 | 35 |
Commercial Real Estate Other Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 515 |  | 515 |  | 7,914
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (86) |  | (86) |  | (1,862)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 429 |  | 429 |  | 6,052
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 430 | 1,245 | 1,902 | 1,500 |
Impaired Financing Receivable, Interest Income, Accrual Method | 0 | 0 | 0 | 0 |
Commercial Real Estate Loans, Total [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 865 |  | 865 |  | 8,701
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (137) |  | (137) |  | (2,074)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 728 |  | 728 |  | 6,627
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 1,759 |  | 1,759 |  | 899
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (118) |  | (118) |  | 0
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 1,641 |  | 1,641 |  | 899
Impaired Financing Receivable, Related Allowance | 120 |  | 120 |  | 134
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 2,414 | 3,806 | 3,921 | 4,066 |
Impaired Financing Receivable, Interest Income, Accrual Method | 14 | 18 | 29 | 35 |
Residential Real Estate Consumer Mortgage Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 960 |  | 960 |  | 971
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (177) |  | (177) |  | (152)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 783 |  | 783 |  | 819
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 789 | 863 | 801 | 881 |
Impaired Financing Receivable, Interest Income, Accrual Method | 0 | 0 | 0 | 0 |
Residential Real Estate Investment Property Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 210 |  | 210 |  | 508
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (29) |  | (29) |  | (110)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 181 |  | 181 |  | 398
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 412 |  | 412 |  |
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (87) |  | (87) |  |
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 325 |  | 325 |  |
Impaired Financing Receivable, Related Allowance | 56 |  | 56 |  |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 348 | 695 | 323 | 562 |
Impaired Financing Receivable, Interest Income, Accrual Method | 0 | 0 | 0 | 0 |
Residential Real Estate Loans, Total [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 1,170 |  | 1,170 |  | 1,479
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (206) |  | (206) |  | (262)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 964 |  | 964 |  | 1,217
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 412 |  | 412 |  |
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (87) |  | (87) |  |
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 325 |  | 325 |  |
Impaired Financing Receivable, Related Allowance | 56 |  | 56 |  |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 1,137 | 1,558 | 1,124 | 1,443 |
Impaired Financing Receivable, Interest Income, Accrual Method | 0 | 0 | 0 | 0 |
Consumer Installment and Revolving Loans [Member] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 0 | 0 | 0 | 0 |
Impaired Financing Receivable, Interest Income, Accrual Method | $ 0 | $ 0 | $ 0 | $ 0 |

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