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Loans and ALLL (Summary of changes in ALLL by segments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	$ 9,700	$ 9,360	$ 9,103	$ 9,744
Allowance for loan losses, Charge-offs	(173)	(246)	(370)	(458)
Allowance for loan losses, Recoveries	132	86	404	406
Allowance for loan losses, Provision for loan losses	18	(107)	540	(599)
Allowance for loan losses, Ending Balance	9,677	9,093	9,677	9,093
Commercial [Member]
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	1,758	2,311	1,740	2,162
Allowance for loan losses, Charge-offs	0	(1)	(3)	(32)
Allowance for loan losses, Recoveries	14	22	54	121
Allowance for loan losses, Provision for loan losses	(436)	(801)	(455)	(720)
Allowance for loan losses, Ending Balance	1,336	1,531	1,336	1,531
Agricultural [Member]
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	451	248	289	311
Allowance for loan losses, Charge-offs	0	(77)	0	(77)
Allowance for loan losses, Recoveries	1	1	4	6
Allowance for loan losses, Provision for loan losses	35	294	194	226
Allowance for loan losses, Ending Balance	487	466	487	466
Residential Real Estate [Member]
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	639	954	747	1,363
Allowance for loan losses, Charge-offs	0	0	0	0
Allowance for loan losses, Recoveries	53	29	123	132
Allowance for loan losses, Provision for loan losses	(70)	(226)	(248)	(738)
Allowance for loan losses, Ending Balance	622	757	622	757
Consumer Portfolio Segment [Member]
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	1,323	938	908	798
Allowance for loan losses, Charge-offs	(173)	(168)	(367)	(349)
Allowance for loan losses, Recoveries	64	34	223	147
Allowance for loan losses, Provision for loan losses	(168)	45	282	253
Allowance for loan losses, Ending Balance	1,046	849	1,046	849
Unallocated [Member]
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	5,529	4,909	5,419	5,110
Allowance for loan losses, Charge-offs	0	0	0	0
Allowance for loan losses, Recoveries	0	0	0	0
Allowance for loan losses, Provision for loan losses	657	581	767	380
Allowance for loan losses, Ending Balance	$ 6,186	$ 5,490	$ 6,186	$ 5,490

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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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Amount of increase in allowance for credit loss on financing receivable from recovery.

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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