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Credit Quality Indicators (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | $ 975,866 | $ 895,561
Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 956,981 | 873,901
Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 6,318 | 11,415
Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 12,567 | 10,245
Originated Loans |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 826,785 | 723,220
Originated Loans | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 816,954 | 711,466
Originated Loans | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 4,825 | 6,459
Originated Loans | Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 5,006 | 5,295
Originated Loans | Commercial real estate | Commercial real estate, Owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 152,714 | 139,926
Originated Loans | Commercial real estate | Commercial real estate, Non-owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 240,304 | 198,588
Originated Loans | Commercial real estate | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 94,882 | 70,443
Originated Loans | Commercial real estate | Commercial real estate, Other |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 91,673 | 88,703
Originated Loans | Commercial real estate | Pass | Commercial real estate, Owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 150,728 | 137,913
Originated Loans | Commercial real estate | Pass | Commercial real estate, Non-owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 239,817 | 198,043
Originated Loans | Commercial real estate | Pass | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 94,808 | 70,354
Originated Loans | Commercial real estate | Pass | Commercial real estate, Other |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 91,417 | 88,421
Originated Loans | Commercial real estate | Special Mention | Commercial real estate, Owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 971 | 442
Originated Loans | Commercial real estate | Special Mention | Commercial real estate, Non-owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 377 | 419
Originated Loans | Commercial real estate | Special Mention | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 0 | 44
Originated Loans | Commercial real estate | Special Mention | Commercial real estate, Other |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 0 | 36
Originated Loans | Commercial real estate | Substandard | Commercial real estate, Owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 1,015 | 1,571
Originated Loans | Commercial real estate | Substandard | Commercial real estate, Non-owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 110 | 126
Originated Loans | Commercial real estate | Substandard | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 74 | 45
Originated Loans | Commercial real estate | Substandard | Commercial real estate, Other |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 256 | 246
Originated Loans | Commercial | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 213,166 | 192,879
Originated Loans | Commercial | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 34,046 | 32,681
Originated Loans | Commercial | Pass | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 206,823 | 184,444
Originated Loans | Commercial | Pass | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 33,361 | 32,291
Originated Loans | Commercial | Special Mention | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 3,464 | 5,326
Originated Loans | Commercial | Special Mention | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 13 | 192
Originated Loans | Commercial | Substandard | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 2,879 | 3,109
Originated Loans | Commercial | Substandard | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 672 | 198
Acquired Loans |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 149,081 | 172,341
Acquired Loans | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 140,027 | 162,435
Acquired Loans | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 1,493 | 4,956
Acquired Loans | Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 7,561 | 4,950
Acquired Loans | Commercial real estate | Commercial real estate, Owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 47,500 | 53,051
Acquired Loans | Commercial real estate | Commercial real estate, Non-owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 18,121 | 20,258
Acquired Loans | Commercial real estate | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 42,256 | 47,755
Acquired Loans | Commercial real estate | Commercial real estate, Other |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 10,722 | 11,976
Acquired Loans | Commercial real estate | Pass | Commercial real estate, Owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 46,279 | 51,133
Acquired Loans | Commercial real estate | Pass | Commercial real estate, Non-owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 17,832 | 19,823
Acquired Loans | Commercial real estate | Pass | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 38,041 | 43,694
Acquired Loans | Commercial real estate | Pass | Commercial real estate, Other |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 10,060 | 11,299
Acquired Loans | Commercial real estate | Special Mention | Commercial real estate, Owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 443 | 466
Acquired Loans | Commercial real estate | Special Mention | Commercial real estate, Non-owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 60 | 63
Acquired Loans | Commercial real estate | Special Mention | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 449 | 3,304
Acquired Loans | Commercial real estate | Special Mention | Commercial real estate, Other |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 0 | 567
Acquired Loans | Commercial real estate | Substandard | Commercial real estate, Owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 778 | 1,452
Acquired Loans | Commercial real estate | Substandard | Commercial real estate, Non-owner occupied |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 229 | 372
Acquired Loans | Commercial real estate | Substandard | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 3,766 | 757
Acquired Loans | Commercial real estate | Substandard | Commercial real estate, Other |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 662 | 110
Acquired Loans | Commercial | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 19,634 | 27,094
Acquired Loans | Commercial | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 10,848 | 12,207
Acquired Loans | Commercial | Pass | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 17,910 | 25,286
Acquired Loans | Commercial | Pass | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 9,905 | 11,200
Acquired Loans | Commercial | Special Mention | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 195 | 2
Acquired Loans | Commercial | Special Mention | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 346 | 554
Acquired Loans | Commercial | Substandard | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 1,529 | 1,806
Acquired Loans | Commercial | Substandard | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | $ 597 | $ 453

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