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Credit Quality Indicators (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	$ 1,071,961	$ 1,021,912
Pass
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	1,048,977	996,670
Special Mention
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	10,820	13,670
Substandard
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	12,164	11,572
Originated Loans
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	957,239	883,388
Originated Loans | Pass
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	940,803	867,288
Originated Loans | Special Mention
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	10,186	11,998
Originated Loans | Substandard
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	6,250	4,102
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	167,790	158,583
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	283,563	255,480
Originated Loans | Commercial real estate | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	133,077	110,761
Originated Loans | Commercial real estate | Commercial real estate, Other
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	91,955	94,242
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	164,545	156,892
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	279,579	251,240
Originated Loans | Commercial real estate | Pass | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	129,504	109,391
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	91,732	92,669
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	1,974	945
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	3,913	4,139
Originated Loans | Commercial real estate | Special Mention | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	2,726	1,301
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	1,325
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	1,271	746
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	71	101
Originated Loans | Commercial real estate | Substandard | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	847	69
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	223	248
Originated Loans | Commercial | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	237,890	226,601
Originated Loans | Commercial | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	42,964	37,721
Originated Loans | Commercial | Pass | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	232,589	219,938
Originated Loans | Commercial | Pass | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	42,854	37,158
Originated Loans | Commercial | Special Mention | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	1,532	4,207
Originated Loans | Commercial | Special Mention | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	41	81
Originated Loans | Commercial | Substandard | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	3,769	2,456
Originated Loans | Commercial | Substandard | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	69	482
Acquired Loans
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	114,722	138,524
Acquired Loans | Pass
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	108,174	129,382
Acquired Loans | Special Mention
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	634	1,672
Acquired Loans | Substandard
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	5,914	7,470
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	39,405	44,939
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	11,661	16,846
Acquired Loans | Commercial real estate | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	37,152	40,982
Acquired Loans | Commercial real estate | Commercial real estate, Other
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	6,920	8,091
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	38,626	43,763
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	11,503	16,601
Acquired Loans | Commercial real estate | Pass | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	33,400	36,565
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	6,374	7,434
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	115	430
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	55	58
Acquired Loans | Commercial real estate | Special Mention | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	205	668
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	0
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	664	746
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	103	187
Acquired Loans | Commercial real estate | Substandard | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	3,547	3,749
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	546	657
Acquired Loans | Commercial | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	13,353	18,141
Acquired Loans | Commercial | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	6,231	9,525
Acquired Loans | Commercial | Pass | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	12,510	16,407
Acquired Loans | Commercial | Pass | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	5,761	8,612
Acquired Loans | Commercial | Special Mention | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	0	170
Acquired Loans | Commercial | Special Mention | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	259	346
Acquired Loans | Commercial | Substandard | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	843	1,564
Acquired Loans | Commercial | Substandard | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	$ 211	$ 567

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Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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-Section 50
-Paragraph 5
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Section 45
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