Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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Loans, Allowance for Loan Losses and Loan Portfolio by Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Allowance for loan losses:
Individually evaluated for impairment	$ 40	$ 62
Collectively evaluated for impairment	4,079	3,984
Acquired credit impaired loans	7	0
Balance, end of period	4,126	4,046	$ 3,529	$ 3,403
Loans:
Individually evaluated for impairment	13,084	17,140
Collectively evaluated for impairment	1,183,689	1,170,681
Acquired credit impaired loans	10,354	10,802
Balance, end of period	1,207,134	1,198,623
Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	10,361	10,802
Commercial and industrial [Member]
Allowance for loan losses:
Individually evaluated for impairment	9	10
Collectively evaluated for impairment	442	390
Acquired credit impaired loans	0	0
Balance, end of period	451	400	393	378
Loans:
Individually evaluated for impairment	258	268
Collectively evaluated for impairment	78,919	76,609
Balance, end of period	79,782	77,799
Commercial and industrial [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	605	922
Commercial Secured By Real Estate [Member]
Allowance for loan losses:
Individually evaluated for impairment	2	3
Collectively evaluated for impairment	2,849	2,742
Acquired credit impaired loans	7	0
Balance, end of period	2,858	2,745	2,143	2,178
Loans:
Individually evaluated for impairment	11,487	15,101
Collectively evaluated for impairment	746,161	718,709
Balance, end of period	763,867	740,125
Commercial Secured By Real Estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	6,219	6,315
Residential Real Estate [Member]
Allowance for loan losses:
Individually evaluated for impairment	29	49
Collectively evaluated for impairment	664	718
Acquired credit impaired loans	0	0
Balance, end of period	693	767	869	717
Loans:
Individually evaluated for impairment	1,305	1,558
Collectively evaluated for impairment	330,138	344,751
Balance, end of period	334,636	349,538
Residential Real Estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	3,193	3,229
Consumer [Member]
Allowance for loan losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	77	87
Acquired credit impaired loans	0	0
Balance, end of period	77	87	78	76
Loans:
Individually evaluated for impairment	34	36
Collectively evaluated for impairment	17,492	17,363
Balance, end of period	17,526	17,399
Consumer [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	0	0
Agricultural [Member]
Allowance for loan losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	41	46
Acquired credit impaired loans	0	0
Balance, end of period	41	46	44	53
Loans:
Individually evaluated for impairment	0	177
Collectively evaluated for impairment	10,914	13,135
Balance, end of period	10,914	13,312
Agricultural [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	0	0
Other [Member]
Allowance for loan losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	6	1
Acquired credit impaired loans	0	0
Balance, end of period	6	1	$ 2	$ 1
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	65	114
Balance, end of period	409	450
Other [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	$ 344	$ 336