Loans, Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Allowance for loan losses [Roll Forward]
Balance, beginning of period	$ 4,046	$ 3,403
(Credit) provision charged to expenses	(105)	79
Losses charged off	(64)	(106)
Recoveries	249	153
Balance, end of period	4,126	3,529
Commercial and industrial [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	400	378
(Credit) provision charged to expenses	51	15
Losses charged off	0	0
Recoveries	0	0
Balance, end of period	451	393
Commercial Secured By Real Estate [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	2,745	2,178
(Credit) provision charged to expenses	57	(131)
Losses charged off	0	(29)
Recoveries	56	125
Balance, end of period	2,858	2,143
Residential Real Estate [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	767	717
(Credit) provision charged to expenses	(195)	186
Losses charged off	(33)	(35)
Recoveries	154	1
Balance, end of period	693	869
Consumer [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	87	76
(Credit) provision charged to expenses	(31)	8
Losses charged off	0	(11)
Recoveries	21	5
Balance, end of period	77	78
Agricultural [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	46	53
(Credit) provision charged to expenses	(5)	(9)
Losses charged off	0	0
Recoveries	0	0
Balance, end of period	41	44
Other [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	1	1
(Credit) provision charged to expenses	18	10
Losses charged off	(31)	(31)
Recoveries	18	22
Balance, end of period	$ 6	$ 2

A valuation allowance for financing receivables that are expected to be uncollectible.

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Balance Type:	credit
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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

+ Details

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

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