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Loans and Allowance for Loan Losses (Details) - Summary of allowance for loan and lease losses and recorded investment in loans based on portfolio segment and impairment method - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	$ 8,755	$ 8,167
Ending balance	8,958	8,121
Allowance:
Individually evaluated for impairment	67		$ 726
Collectively evaluated for impairment	8,891		8,029
Totals	8,958		8,755
Loans:
Individually evaluated for impairment	6,004		5,585
Collectively evaluated for impairment	824,012		819,205
Totals	830,016		824,790
Charge offs	(400)	(60)
Recoveries	3	14
Provision	600
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	1,883	1,435
Ending balance	1,649	1,334
Allowance:
Individually evaluated for impairment	1		511
Collectively evaluated for impairment	1,648		1,372
Totals	1,649		1,883
Loans:
Individually evaluated for impairment	1,261		1,722
Collectively evaluated for impairment	149,529		149,325
Totals	150,790		151,047
Charge offs	(388)	(48)
Recoveries	1
Provision	153	(53)
Commercial and Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	3,602	2,923
Ending balance	3,668	3,269
Allowance:
Individually evaluated for impairment			147
Collectively evaluated for impairment	3,668		3,455
Totals	3,668		3,602
Loans:
Individually evaluated for impairment	1,766		1,558
Collectively evaluated for impairment	373,965		365,224
Totals	375,731		366,782
Charge offs
Recoveries
Provision	66	346
Agricultural & farmland [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	434	482
Ending balance	475	466
Allowance:
Individually evaluated for impairment
Collectively evaluated for impairment	475		434
Totals	475		434
Loans:
Individually evaluated for impairment
Collectively evaluated for impairment	47,660		50,994
Totals	47,660		50,994
Charge offs
Recoveries
Provision	41	(16)
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	2,203	2,567
Ending balance	2,442	2,316
Allowance:
Individually evaluated for impairment	66		68
Collectively evaluated for impairment	2,376		2,135
Totals	2,442		2,203
Loans:
Individually evaluated for impairment	2,950		2,274
Collectively evaluated for impairment	190,551		190,885
Totals	193,501		193,159
Charge offs
Recoveries	1
Provision	238	(251)
Consumers [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	633	760
Ending balance	724	736
Allowance:
Individually evaluated for impairment
Collectively evaluated for impairment	724		633
Totals	724		633
Loans:
Individually evaluated for impairment	27		31
Collectively evaluated for impairment	62,307		62,777
Totals	62,334		$ 62,808
Charge offs	(12)	(12)
Recoveries	1	14
Provision	$ 102	$ (26)

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