Loans, Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Allowance for loan losses [Roll Forward]
Balance, beginning of period	$ 5,833	$ 5,652	$ 5,506	$ 5,728
Provision for (recovery of) loan losses	(157)	306	269	239
Losses charged off	(53)	(146)	(206)	(212)
Recoveries	21	16	75	73
Balance, end of period	5,644	5,828	5,644	5,828
Commercial and industrial [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	1,287	1,043	1,095	816
Provision for (recovery of) loan losses	(33)	(38)	159	189
Losses charged off	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	1,254	1,005	1,254	1,005
Commercial Secured By Real Estate [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	3,825	3,743	3,607	3,903
Provision for (recovery of) loan losses	(164)	368	121	210
Losses charged off	0	(110)	(67)	(112)
Recoveries	0	0	0	0
Balance, end of period	3,661	4,001	3,661	4,001
Residential Real Estate [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	625	697	665	837
Provision for (recovery of) loan losses	7	(31)	(47)	(183)
Losses charged off	0	0	(5)	(16)
Recoveries	0	0	19	28
Balance, end of period	632	666	632	666
Consumer [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	67	122	105	153
Provision for (recovery of) loan losses	19	(9)	(14)	(37)
Losses charged off	(14)	(4)	(19)	(9)
Recoveries	0	0	0	2
Balance, end of period	72	109	72	109
Agricultural [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	18	37	30	28
Provision for (recovery of) loan losses	2	(1)	(10)	8
Losses charged off	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	20	36	20	36
Other [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	11	10	4	(9)
Provision for (recovery of) loan losses	12	17	60	52
Losses charged off	(39)	(32)	(115)	(75)
Recoveries	21	16	56	43
Balance, end of period	$ 5	$ 11	$ 5	$ 11