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Loans and Allowance - Composition of Impaired Loans by Loan Class (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Unpaid Principal Balance |  |  |
Impaired loans with no related allowance | $ 10,350 |  | $ 9,955
Impaired loans with related allowance | 5,254 |  | 5,139
Total Impaired Loans | 15,604 |  | 15,094
Recorded Investment |  |  |
Impaired loans with no related allowance | 8,340 |  | 7,352
Impaired loans with related allowance | 4,473 |  | 4,357
Total Impaired Loans | 12,813 |  | 11,709
Related Allowance | 616 |  | 689
Average Recorded Investment |  |  |
Impaired loans with no related allowance | 8,834 | $ 20,149 |
Impaired loans with related allowance | 4,973 | 4,576 |
Total Impaired Loans | 13,807 | 24,725 |
Interest Income Recognized |  |  |
Impaired loans with no related allowance | 38 | 40 |
Impaired loans with related allowance | 22 | 18 |
Total Impaired Loans | 60 | 58 |
Commercial and industrial loans |  |  |
Unpaid Principal Balance |  |  |
Impaired loans with no related allowance | 905 |  | 320
Recorded Investment |  |  |
Impaired loans with no related allowance | 905 |  | 320
Average Recorded Investment |  |  |
Impaired loans with no related allowance | 905 | 1,641 |
Interest Income Recognized |  |  |
Impaired loans with no related allowance | 0 | 0 |
Agricultural production financing and other loans to farmers |  |  |
Unpaid Principal Balance |  |  |
Impaired loans with no related allowance |  |  | 299
Recorded Investment |  |  |
Impaired loans with no related allowance |  |  | 137
Average Recorded Investment |  |  |
Impaired loans with no related allowance |  | 799 |
Impaired loans with related allowance |  | 2,150 |
Interest Income Recognized |  |  |
Impaired loans with no related allowance |  | 0 |
Construction |  |  |
Unpaid Principal Balance |  |  |
Impaired loans with no related allowance | 1,206 |  | 1,206
Recorded Investment |  |  |
Impaired loans with no related allowance | 970 |  | 970
Average Recorded Investment |  |  |
Impaired loans with no related allowance | 1,015 | 8,270 |
Interest Income Recognized |  |  |
Impaired loans with no related allowance | 0 | 0 |
Commercial and farmland |  |  |
Unpaid Principal Balance |  |  |
Impaired loans with no related allowance | 8,160 |  | 8,037
Impaired loans with related allowance | 2,649 |  | 2,648
Recorded Investment |  |  |
Impaired loans with no related allowance | 6,403 |  | 5,849
Impaired loans with related allowance | 1,909 |  | 1,909
Related Allowance | 150 |  | 231
Average Recorded Investment |  |  |
Impaired loans with no related allowance | 6,852 | 8,999 |
Impaired loans with related allowance | 2,400 | 171 |
Interest Income Recognized |  |  |
Impaired loans with no related allowance | 37 | 39 |
Residential |  |  |
Unpaid Principal Balance |  |  |
Impaired loans with no related allowance | 76 |  | 93
Impaired loans with related allowance | 2,198 |  | 2,070
Recorded Investment |  |  |
Impaired loans with no related allowance | 59 |  | 76
Impaired loans with related allowance | 2,173 |  | 2,044
Related Allowance | 393 |  | 383
Average Recorded Investment |  |  |
Impaired loans with no related allowance | 59 | 38 |
Impaired loans with related allowance | 2,180 | 1,884 |
Interest Income Recognized |  |  |
Impaired loans with no related allowance | 1 | 1 |
Impaired loans with related allowance | 19 | 15 |
Home equity |  |  |
Unpaid Principal Balance |  |  |
Impaired loans with related allowance | 407 |  | 417
Recorded Investment |  |  |
Impaired loans with related allowance | 391 |  | 400
Related Allowance | 73 |  | 75
Average Recorded Investment |  |  |
Impaired loans with no related allowance |  | 48 |
Impaired loans with related allowance | 393 | 356 |
Interest Income Recognized |  |  |
Impaired loans with related allowance | 3 | 3 |
Individuals' loans for household and other personal expenditures |  |  |
Unpaid Principal Balance |  |  |
Impaired loans with no related allowance | 3 |  |
Impaired loans with related allowance |  |  | 4
Recorded Investment |  |  |
Impaired loans with no related allowance | 3 |  |
Impaired loans with related allowance |  |  | 4
Related Allowance |  |  | $ 0
Average Recorded Investment |  |  |
Impaired loans with no related allowance | $ 3 | 1 |
Interest Income Recognized |  |  |
Impaired loans with no related allowance |  | 0 |
Public finance and other commercial loans |  |  |
Average Recorded Investment |  |  |
Impaired loans with no related allowance |  | 353 |
Impaired loans with related allowance |  | 15 |
Interest Income Recognized |  |  |
Impaired loans with no related allowance |  | 0 |
Impaired loans with related allowance |  | $ 0 |

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