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Credit Quality Indicators (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | $ 912,197 | $ 895,561
Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 889,172 | 873,901
Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 12,169 | 11,415
Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 10,856 | 10,245
Originated Loans |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 749,157 | 723,220
Originated Loans | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 737,018 | 711,466
Originated Loans | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 7,192 | 6,459
Originated Loans | Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 4,947 | 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 | 147,488 | 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 | 207,770 | 198,588
Originated Loans | Commercial real estate | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 83,698 | 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 | 72,841 | 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 | 145,393 | 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 | 207,243 | 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 | 83,614 | 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 | 72,566 | 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 | 1,023 | 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 | 406 | 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 | 1,072 | 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 | 121 | 126
Originated Loans | Commercial real estate | Substandard | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 84 | 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 | 275 | 246
Originated Loans | Commercial | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 207,366 | 192,879
Originated Loans | Commercial | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 29,994 | 32,681
Originated Loans | Commercial | Pass | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 198,779 | 184,444
Originated Loans | Commercial | Pass | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 29,423 | 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 | 5,423 | 5,326
Originated Loans | Commercial | Special Mention | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 340 | 192
Originated Loans | Commercial | Substandard | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 3,164 | 3,109
Originated Loans | Commercial | Substandard | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 231 | 198
Acquired Loans |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 163,040 | 172,341
Acquired Loans | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 152,154 | 162,435
Acquired Loans | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 4,977 | 4,956
Acquired Loans | Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 5,909 | 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 | 51,204 | 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 | 19,445 | 20,258
Acquired Loans | Commercial real estate | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 45,553 | 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 | 11,669 | 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 | 49,267 | 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 | 19,140 | 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 | 40,596 | 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 | 10,998 | 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 | 458 | 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 | 36 | 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 | 3,707 | 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 | 1,479 | 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 | 269 | 372
Acquired Loans | Commercial real estate | Substandard | Commercial farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 1,250 | 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 | 671 | 110
Acquired Loans | Commercial | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 23,690 | 27,094
Acquired Loans | Commercial | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 11,479 | 12,207
Acquired Loans | Commercial | Pass | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 21,638 | 25,286
Acquired Loans | Commercial | Pass | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 10,515 | 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 | 264 | 2
Acquired Loans | Commercial | Special Mention | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 512 | 554
Acquired Loans | Commercial | Substandard | Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | 1,788 | 1,806
Acquired Loans | Commercial | Substandard | Commercial, Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total risk category of loans by class of loans | $ 452 | $ 453

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