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Credit Quality Indicators (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	$ 873,040	$ 779,340
Pass
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	852,685	759,104
Special Mention
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	11,587	7,672
Substandard
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	8,768	12,564
Originated Loans
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	686,169	574,943
Originated Loans | Pass
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	676,416	564,374
Originated Loans | Special Mention
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	6,508	4,310
Originated Loans | Substandard
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	3,245	6,259
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	137,174	109,433
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	191,090	165,448
Originated Loans | Commercial real estate | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	58,270	34,115
Originated Loans | Commercial real estate | Commercial real estate, Other
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	80,478	70,542
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	135,081	106,448
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	190,511	162,465
Originated Loans | Commercial real estate | Pass | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	58,178	34,057
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	79,866	69,947
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	466	490
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	433	522
Originated Loans | Commercial real estate | Special Mention | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	45	0
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	362	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	1,627	2,495
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	146	2,461
Originated Loans | Commercial real estate | Substandard | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	47	58
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	250	270
Originated Loans | Commercial | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	187,059	170,732
Originated Loans | Commercial | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	32,098	24,673
Originated Loans | Commercial | Pass | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	181,072	167,062
Originated Loans | Commercial | Pass | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	31,708	24,395
Originated Loans | Commercial | Special Mention | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	5,010	2,720
Originated Loans | Commercial | Special Mention | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	192	253
Originated Loans | Commercial | Substandard | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	977	950
Originated Loans | Commercial | Substandard | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	198	25
Acquired Loans
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	186,871	204,397
Acquired Loans | Pass
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	176,269	194,730
Acquired Loans | Special Mention
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	5,079	3,362
Acquired Loans | Substandard
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	5,523	6,305
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	54,074	60,928
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	23,126	24,949
Acquired Loans | Commercial real estate | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	51,231	54,204
Acquired Loans | Commercial real estate | Commercial real estate, Other
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	13,312	14,666
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	52,053	58,655
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	22,357	23,577
Acquired Loans | Commercial real estate | Pass | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	47,373	53,039
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	12,630	14,060
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	477	707
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	390	1,195
Acquired Loans | Commercial real estate | Special Mention | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	3,040	0
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	570	464
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	1,544	1,566
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	379	177
Acquired Loans | Commercial real estate | Substandard | Commercial farmland
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	818	1,165
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	112	142
Acquired Loans | Commercial | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	31,371	33,626
Acquired Loans | Commercial | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	13,757	16,024
Acquired Loans | Commercial | Pass | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	29,155	30,543
Acquired Loans | Commercial | Pass | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	12,701	14,856
Acquired Loans | Commercial | Special Mention | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	41	311
Acquired Loans | Commercial | Special Mention | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	561	685
Acquired Loans | Commercial | Substandard | Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	2,175	2,772
Acquired Loans | Commercial | Substandard | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Total risk category of loans by class of loans	$ 495	$ 483

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Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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