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Loans and Allowance for Loan Losses (Details 4) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Commercial & Industrial [Member] |  |
Summary of Impaired loan activity |  |
With no related allowance recorded, Recorded Investment | $ 394 | $ 1,206
With no related allowance recorded, Unpaid Principal Balance | 2,280 | 1,856
With no related allowance recorded, Average Recorded Investment | 2,419 | 1,737
With no related allowance recorded, Interest Income Recognized |  | 89
With a specific allowance recorded, Recorded Investment | 838 | 2,077
With a specific allowance recorded, Unpaid Principal Balance | 944 | 3,787
With a specific allowance recorded, Related Allowance | 485 | 1,017
With a specific allowance recorded, Average Recorded Investment | 949 | 2,528
With a specific allowance recorded, Interest Income Recognized | 6 |
Total Recorded Investment | 1,232 | 3,283
Total Unpaid Principal Balance | 3,224 | 5,643
Total Related Allowance | 485 | 1,017
Total Average Recorded Investment | 3,368 | 4,265
Total Interest Income Recognized | 6 | 89
Commercial RE & Construction [Member] |  |
Summary of Impaired loan activity |  |
With no related allowance recorded, Recorded Investment | 527 | 1,061
With no related allowance recorded, Unpaid Principal Balance | 1,529 | 2,149
With no related allowance recorded, Average Recorded Investment | 1,610 | 2,264
With no related allowance recorded, Interest Income Recognized | 15 | 4
With a specific allowance recorded, Recorded Investment | 198 | 1,412
With a specific allowance recorded, Unpaid Principal Balance | 198 | 2,827
With a specific allowance recorded, Related Allowance | 55 | 19
With a specific allowance recorded, Average Recorded Investment | 198 | 2,029
With a specific allowance recorded, Interest Income Recognized |  | 21
Total Recorded Investment | 725 | 2,473
Total Unpaid Principal Balance | 1,727 | 4,976
Total Related Allowance | 55 | 19
Total Average Recorded Investment | 1,808 | 4,293
Total Interest Income Recognized | 15 | 25
Agricultural & Farmland [Member] |  |
Summary of Impaired loan activity |  |
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 |  |
With a specific allowance recorded, Recorded Investment |  | 5
With a specific allowance recorded, Unpaid Principal Balance |  | 5
With a specific allowance recorded, Related Allowance |  | 5
With a specific allowance recorded, Average Recorded Investment |  | 5
With a specific allowance recorded, Interest Income Recognized |  | 1
Total Recorded Investment |  | 5
Total Unpaid Principal Balance |  | 5
Total Related Allowance |  | 5
Total Average Recorded Investment |  | 5
Total Interest Income Recognized |  | 1
Residential Real Estate [Member] |  |
Summary of Impaired loan activity |  |
With no related allowance recorded, Recorded Investment | 1,122 | 581
With no related allowance recorded, Unpaid Principal Balance | 1,204 | 581
With no related allowance recorded, Average Recorded Investment | 1,284 | 678
With no related allowance recorded, Interest Income Recognized | 57 | 42
With a specific allowance recorded, Recorded Investment | 1,561 | 1,493
With a specific allowance recorded, Unpaid Principal Balance | 1,561 | 1,596
With a specific allowance recorded, Related Allowance | 386 | 280
With a specific allowance recorded, Average Recorded Investment | 1,530 | 1,655
With a specific allowance recorded, Interest Income Recognized | 62 | 66
Total Recorded Investment | 2,683 | 2,074
Total Unpaid Principal Balance | 2,765 | 2,177
Total Related Allowance | 386 | 280
Total Average Recorded Investment | 2,814 | 2,333
Total Interest Income Recognized | 119 | 108
Home Equity & Consumer [Member] |  |
Summary of Impaired loan activity |  |
With no related allowance recorded, Recorded Investment | 228 | 189
With no related allowance recorded, Unpaid Principal Balance | 260 | 217
With no related allowance recorded, Average Recorded Investment | 272 | 191
With no related allowance recorded, Interest Income Recognized | 10 | 2
With a specific allowance recorded, Recorded Investment | 454 | 354
With a specific allowance recorded, Unpaid Principal Balance | 454 | 354
With a specific allowance recorded, Related Allowance | 195 | 212
With a specific allowance recorded, Average Recorded Investment | 471 | 365
With a specific allowance recorded, Interest Income Recognized | 20 | 8
Total Recorded Investment | 682 | 543
Total Unpaid Principal Balance | 714 | 571
Total Related Allowance | 195 | 212
Total Average Recorded Investment | 743 | 556
Total Interest Income Recognized | 30 | 10
All Impaired Loans less than $100,000 [Member] |  |
Summary of Impaired loan activity |  |
With no related allowance recorded, Recorded Investment | 1,336 | 1,065
With no related allowance recorded, Unpaid Principal Balance | 1,336 | 1,065
With no related allowance recorded, Average Recorded Investment | 1,336 | 1,065
With no related allowance recorded, Interest Income Recognized |  |
With a specific allowance recorded, Recorded Investment |  |
With a specific allowance recorded, Unpaid Principal Balance |  |
With a specific allowance recorded, Related Allowance |  |
With a specific allowance recorded, Average Recorded Investment |  |
With a specific allowance recorded, Interest Income Recognized |  |
Total Recorded Investment | 1,336 | 1,065
Total Unpaid Principal Balance | 1,336 | 1,065
Total Related Allowance |  |
Total Average Recorded Investment | 1,336 | 1,065
Total Interest Income Recognized |  |

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