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Loans and Allowance for Loan Losses (Details 5) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2012 | Dec. 31, 2011
Impaired loans without a valuation allowance, Recorded Investment | $ 7,179 | $ 8,196
Impaired loans without a valuation allowance, Unpaid Principal Balance | 7,895 | 8,390
Impaired loans without a valuation allowance, Average Recorded Investment | 8,792 | 11,273
Impaired loans without a valuation allowance, Interest Income Recognized | 210 | 575
Impaired loans with a valuation allowance, Recorded Investment | 12,563 | 17,221
Impaired loans with a valuation allowance, Unpaid Principal Balance | 12,676 | 17,338
Impaired loans with a valuation allowance, Related Allowance | 3,357 | 4,976
Impaired loans with a valuation allowance, Average Recorded Investment | 14,051 | 12,323
Impaired loans with a valuation allowance, Interest Income Recognized | 399 | 1,066
Total impaired loans, Recorded Investment | 19,742 | 25,417
Total impaired loans, Unpaid Principal Balance | 20,571 | 25,728
Total impaired loans, Average Recorded Investment | 22,843 | 23,596
Total impaired loans, Interest Income Recognized | 609 | 1,641
Commercial Real Estate Mortgage [Member] |  |
Impaired loans without a valuation allowance, Recorded Investment | 2,675 | 4,354
Impaired loans without a valuation allowance, Unpaid Principal Balance | 2,692 | 4,354
Impaired loans without a valuation allowance, Average Recorded Investment | 4,314 | 5,378
Impaired loans without a valuation allowance, Interest Income Recognized | 98 | 330
Impaired loans with a valuation allowance, Recorded Investment | 7,758 | 9,639
Impaired loans with a valuation allowance, Unpaid Principal Balance | 7,770 | 9,694
Impaired loans with a valuation allowance, Related Allowance | 1,932 | 2,605
Impaired loans with a valuation allowance, Average Recorded Investment | 8,034 | 5,912
Impaired loans with a valuation allowance, Interest Income Recognized | 246 | 645
Consumer Real Estate Mortgage [Member] |  |
Impaired loans without a valuation allowance, Recorded Investment | 1,918 | 322
Impaired loans without a valuation allowance, Unpaid Principal Balance | 2,601 | 322
Impaired loans without a valuation allowance, Average Recorded Investment | 1,399 | 3,589
Impaired loans without a valuation allowance, Interest Income Recognized | 96 | 21
Impaired loans with a valuation allowance, Recorded Investment | 3,601 | 6,195
Impaired loans with a valuation allowance, Unpaid Principal Balance | 3,702 | 6,257
Impaired loans with a valuation allowance, Related Allowance | 781 | 1,254
Impaired loans with a valuation allowance, Average Recorded Investment | 4,838 | 5,333
Impaired loans with a valuation allowance, Interest Income Recognized | 98 | 294
Construction and Land Development [Member] |  |
Impaired loans without a valuation allowance, Recorded Investment | 244 | 829
Impaired loans without a valuation allowance, Unpaid Principal Balance | 251 | 1,023
Impaired loans without a valuation allowance, Average Recorded Investment | 591 | 1,099
Impaired loans without a valuation allowance, Interest Income Recognized | 9 | 59
Impaired loans with a valuation allowance, Recorded Investment | 719 | 879
Impaired loans with a valuation allowance, Unpaid Principal Balance | 719 | 879
Impaired loans with a valuation allowance, Related Allowance | 459 | 653
Impaired loans with a valuation allowance, Average Recorded Investment | 679 | 294
Impaired loans with a valuation allowance, Interest Income Recognized | 25 | 62
Commercial and Industrial Loans [Member] |  |
Impaired loans without a valuation allowance, Recorded Investment | 2,342 | 2,691
Impaired loans without a valuation allowance, Unpaid Principal Balance | 2,351 | 2,691
Impaired loans without a valuation allowance, Average Recorded Investment | 2,488 | 1,207
Impaired loans without a valuation allowance, Interest Income Recognized | 7 | 165
Impaired loans with a valuation allowance, Recorded Investment | 485 | 508
Impaired loans with a valuation allowance, Unpaid Principal Balance | 485 | 508
Impaired loans with a valuation allowance, Related Allowance | 185 | 464
Impaired loans with a valuation allowance, Average Recorded Investment | 500 | 784
Impaired loans with a valuation allowance, Interest Income Recognized | $ 30 | $ 65

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