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Loans and ALLL (Summary of recorded investment in loans by segments) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	$ 474		$ 578
Collectively evaluated for impairment, ALLL	9,203		8,525
Total, ALLL	9,677	$ 9,700	9,103	$ 9,093	$ 9,360	$ 9,744
Individually evaluated for impairment, Loans	19,751		26,910
Collectively evaluated for impairment, Loans	1,216,400		1,274,127
Total	1,236,151		1,301,037
Commercial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	14		13
Collectively evaluated for impairment, ALLL	1,322		1,727
Total, ALLL	1,336	1,758	1,740	1,531	2,311	2,162
Individually evaluated for impairment, Loans	5,703		9,267
Collectively evaluated for impairment, Loans	724,801		798,172
Total	730,504		807,439
Agricultural [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	0		0
Collectively evaluated for impairment, ALLL	487		289
Total, ALLL	487	451	289	466	248	311
Individually evaluated for impairment, Loans	11,188		14,189
Collectively evaluated for impairment, Loans	85,662		79,766
Total	96,850		93,955
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	460		565
Collectively evaluated for impairment, ALLL	162		182
Total, ALLL	622	639	747	757	954	1,363
Individually evaluated for impairment, Loans	2,860		3,454
Collectively evaluated for impairment, Loans	331,552		322,907
Total	334,412		326,361
Total Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	0		0
Collectively evaluated for impairment, ALLL	1,046		908
Total, ALLL	1,046	1,323	908	849	938	798
Individually evaluated for impairment, Loans	0		0
Collectively evaluated for impairment, Loans	74,385		73,282
Total	74,385		73,282
Unallocated [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	0		0
Collectively evaluated for impairment, ALLL	6,186		5,419
Total, ALLL	$ 6,186	$ 5,529	$ 5,419	$ 5,490	$ 4,909	$ 5,110

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

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