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Loans and Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for Loan Losses
Beginning balance	$ 4,577	$ 4,277	$ 4,194
Charge-offs	(365)	(735)	(357)
Recoveries	426	550	440
Provision	35	485
Ending balance	4,673	4,577	4,277
Individually evaluated for impairment	297	302	403
Collectively evaluated for impairment	4,376	4,275	3,874
Loans
Individually evaluated for impairment	4,024	4,140	4,911
Collectively evaluated for impairment	405,049	394,645	364,089
Ending balance	409,073	398,785	369,000
Agricultural [Member]
Allowance for Loan Losses
Beginning balance	506	433	420
Recoveries	33
Provision	(58)	73	13
Ending balance	481	506	433
Individually evaluated for impairment	94		3
Collectively evaluated for impairment	387	506	430
Loans
Individually evaluated for impairment	578	423	526
Collectively evaluated for impairment	48,531	48,041	44,088
Ending balance	49,109	48,464	44,614
Commercial and Industrial [Member]
Allowance for Loan Losses
Beginning balance	1,001	688	586
Charge-offs	(58)	(439)	(37)
Recoveries	107	21	31
Provision	(158)	731	108
Ending balance	892	1,001	688
Individually evaluated for impairment	3	26	11
Collectively evaluated for impairment	889	975	677
Loans
Individually evaluated for impairment	21	124	301
Collectively evaluated for impairment	91,385	104,262	95,787
Ending balance	91,406	104,386	96,088
Consumer [Member]
Allowance for Loan Losses
Beginning balance	262	305	297
Charge-offs	(282)	(253)	(218)
Recoveries	112	169	149
Provision	162	41	77
Ending balance	254	262	305
Individually evaluated for impairment	13	3	2
Collectively evaluated for impairment	241	259	303
Loans
Individually evaluated for impairment	90	36	28
Collectively evaluated for impairment	24,292	24,477	21,568
Ending balance	24,382	24,513	21,596
Commercial Real Estate [Member]
Allowance for Loan Losses
Beginning balance	1,761	1,438	1,030
Recoveries	61	258	89
Provision	104	65	319
Ending balance	1,926	1,761	1,438
Individually evaluated for impairment	20	49	91
Collectively evaluated for impairment	1,906	1,712	1,347
Loans
Individually evaluated for impairment	623	778	1,073
Collectively evaluated for impairment	138,830	122,709	109,689
Ending balance	139,453	123,487	110,762
Construction Real Estate [Member]
Allowance for Loan Losses
Beginning balance	35	62	46
Recoveries		40
Provision	3	(67)	16
Ending balance	38	35	62
Collectively evaluated for impairment	38	35	62
Loans
Collectively evaluated for impairment	8,843	6,613	6,153
Ending balance	8,843	6,613	6,153
Residential Real Estate [Member]
Allowance for Loan Losses
Beginning balance	726	1,013	1,388
Charge-offs	(25)	(43)	(102)
Recoveries	113	62	171
Provision	(277)	(306)	(444)
Ending balance	537	726	1,013
Individually evaluated for impairment	167	224	296
Collectively evaluated for impairment	370	502	717
Loans
Individually evaluated for impairment	2,712	2,779	2,983
Collectively evaluated for impairment	93,168	88,543	86,804
Ending balance	95,880	91,322	89,787
Unallocated [Member]
Allowance for Loan Losses
Beginning balance	286	338	427
Provision	259	(52)	(89)
Ending balance	545	286	338
Collectively evaluated for impairment	$ 545	$ 286	$ 338

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Loans Transferred to Other Real Estate

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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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.

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