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Loans and ALLL (Summary of recorded investment in loans by segments) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	$ 578	$ 911
Collectively evaluated for impairment, ALLL	8,525	8,833
Total, ALLL	9,103	9,744	$ 7,939
Individually evaluated for impairment, Loans	26,910	27,936
Collectively evaluated for impairment, Loans	1,274,127	1,210,375
Total	1,301,037	1,238,311
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	13	84
Collectively evaluated for impairment, ALLL	1,727	2,078
Total, ALLL	1,740	2,162	1,914
Individually evaluated for impairment, Loans	9,267	9,821
Collectively evaluated for impairment, Loans	798,172	746,865
Total	807,439	756,686
Agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	0	56
Collectively evaluated for impairment, ALLL	289	255
Total, ALLL	289	311	634
Individually evaluated for impairment, Loans	14,189	13,796
Collectively evaluated for impairment, Loans	79,766	86,665
Total	93,955	100,461
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	565	771
Collectively evaluated for impairment, ALLL	182	592
Total, ALLL	747	1,363	2,047
Individually evaluated for impairment, Loans	3,454	4,319
Collectively evaluated for impairment, Loans	322,907	303,224
Total	326,361	307,543
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	0	0
Collectively evaluated for impairment, ALLL	908	798
Total, ALLL	908	798	922
Individually evaluated for impairment, Loans	0	0
Collectively evaluated for impairment, Loans	73,282	73,621
Total	73,282	73,621
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	0	0
Collectively evaluated for impairment, ALLL	5,419	5,110
Total, ALLL	$ 5,419	$ 5,110	$ 2,422

X

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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