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Impaired Loans (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011 | Dec. 31, 2011
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | $ 5,504 |  | $ 5,504 |  | $ 5,190
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (1,918) |  | (1,918) |  | (1,633)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 3,586 |  | 3,586 |  | 3,557
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 5,427 |  | 5,427 |  | 8,476
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (382) |  | (382) |  | (1,047)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 5,045 |  | 5,045 |  | 7,429
Impaired Financing Receivable, With Related Allowance, Related Allowance | 842 |  | 842 |  | 1,221
Impaired Financing Receivable, Unpaid Principal Balance | 10,931 |  | 10,931 |  | 13,666
Impaired Financing Receivable, Charge-off And Payments Applied | (2,300) |  | (2,300) |  | (2,680)
Impaired Financing Receivable, Recorded Investment | 8,631 |  | 8,631 |  | 10,986
Impaired Financing Receivable, Related Allowance | 842 |  | 842 |  | 1,221
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 9,746 | 9,901 | 10,309 | 10,617 |
Impaired Financing Receivable, Interest Income, Accrual Method | 22 | 3 | 43 | 8 |
Commercial and Industrial Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 195 |  | 195 |  | 216
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 195 |  | 195 |  | 216
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 0 |  | 0 |  |
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | 0
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 0 |  | 0 |  | 0
Impaired Financing Receivable, Related Allowance | 0 |  | 0 |  | 0
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 197 | 237 | 205 | 395 |
Impaired Financing Receivable, Interest Income, Accrual Method | 4 | 0 | 8 | 2 |
Construction And Land Development Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 2,879 |  | 2,879 |  | 3,958
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (1,601) |  | (1,601) |  | (1,572)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 1,278 |  | 1,278 |  | 2,386
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 2,817 |  | 2,817 |  | 2,882
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (237) |  | (237) |  | (173)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 2,580 |  | 2,580 |  | 2,709
Impaired Financing Receivable, Related Allowance | 366 |  | 366 |  | 147
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 4,185 | 3,790 | 4,595 | 3,952 |
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 | 1,919 |  | 1,919 |  | 361
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (256) |  | (256) |  | (11)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 1,663 |  | 1,663 |  | 350
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 916 |  | 916 |  | 2,255
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | (29)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 916 |  | 916 |  | 2,226
Impaired Financing Receivable, Related Allowance | 151 |  | 151 |  | 544
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 2,561 | 1,651 | 2,566 | 1,720 |
Impaired Financing Receivable, Interest Income, Accrual Method | 18 | 3 | 35 | 6 |
Commercial Real Estate Other Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 511 |  | 511 |  | 655
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (61) |  | (61) |  | (50)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 450 |  | 450 |  | 605
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 0 |  | 0 |  | 1,242
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | (41)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 0 |  | 0 |  | 1,201
Impaired Financing Receivable, Related Allowance | 0 |  | 0 |  | 264
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 1,245 | 2,701 | 1,500 | 2,737 |
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 | 2,430 |  | 2,430 |  | 1,016
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (317) |  | (317) |  | (61)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 2,113 |  | 2,113 |  | 955
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 916 |  | 916 |  | 3,497
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | (70)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 916 |  | 916 |  | 3,427
Impaired Financing Receivable, Related Allowance | 151 |  | 151 |  | 808
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 3,806 | 4,352 | 4,066 | 4,457 |
Impaired Financing Receivable, Interest Income, Accrual Method | 18 | 3 | 35 | 6 |
Residential Real Estate Consumer Mortgage Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 0 |  | 0 |  | 0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 980 |  | 980 |  | 1,707
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (125) |  | (125) |  | (797)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 855 |  | 855 |  | 910
Impaired Financing Receivable, Related Allowance | 50 |  | 50 |  | 103
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 863 | 1,522 | 881 | 1,762 |
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 | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 0 |  | 0 |  | 0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 714 |  | 714 |  | 390
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (20) |  | (20) |  | (7)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 694 |  | 694 |  | 383
Impaired Financing Receivable, Related Allowance | 275 |  | 275 |  | 163
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 695 | 0 | 562 | 51 |
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 | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 0 |  | 0 |  | 0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 1,694 |  | 1,694 |  | 2,097
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (145) |  | (145) |  | (804)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 1,549 |  | 1,549 |  | 1,293
Impaired Financing Receivable, Related Allowance | 325 |  | 325 |  | 266
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |  |  |
Impaired Financing Receivable, Average Recorded Investment | 1,558 | 1,522 | 1,443 | 1,813 |
Impaired Financing Receivable, Interest Income, Accrual Method | 0 | 0 | 0 | 0 |
Consumer Installment and Revolving Loans [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 0 |  | 0 |  | 0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 0 |  | 0 |  | 0
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | 0 |  | 0 |  | 0
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 0 |  | 0 |  | 0
Impaired Financing Receivable, Related Allowance | 0 |  | 0 |  | 0
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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