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Loans and ALLL (Summary of recorded investment in loans by segments) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	$ 573	$ 578
Collectively evaluated for impairment, ALLL	8,631	8,525
Total, ALLL	9,204	9,103	$ 9,271	$ 9,744
Individually evaluated for impairment, Loans	23,463	26,910
Collectively evaluated for impairment, Loans	1,194,908	1,274,127
Total	1,218,371	1,301,037
Commercial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	9	13
Collectively evaluated for impairment, ALLL	1,236	1,727
Total, ALLL	1,245	1,740	1,699	2,162
Individually evaluated for impairment, Loans	9,072	9,267
Collectively evaluated for impairment, Loans	718,542	798,172
Total	727,614	807,439
Agricultural [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	0	0
Collectively evaluated for impairment, ALLL	383	289
Total, ALLL	383	289	230	311
Individually evaluated for impairment, Loans	11,101	14,189
Collectively evaluated for impairment, Loans	77,068	79,766
Total	88,169	93,955
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	564	565
Collectively evaluated for impairment, ALLL	161	182
Total, ALLL	725	747	1,163	1,363
Individually evaluated for impairment, Loans	3,290	3,454
Collectively evaluated for impairment, Loans	325,269	322,907
Total	328,559	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	708	908
Total, ALLL	708	908	956	798
Individually evaluated for impairment, Loans	0	0
Collectively evaluated for impairment, Loans	74,029	73,282
Total	74,029	73,282
Unallocated [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment, ALLL	0	0
Collectively evaluated for impairment, ALLL	6,143	5,419
Total, ALLL	$ 6,143	$ 5,419	$ 5,223	$ 5,110

X

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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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