Loans, Major Classifications of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	$ 1,439,251		$ 1,401,278
Allowance for loan losses	7,956	$ 7,858	5,646	$ 5,833	$ 5,530	$ 5,506
Total	1,431,295		1,395,632
Loans and Leases Receivable, Net of Deferred Income	1,439,251		1,401,278
Loans and Leases Receivable, Deferred Income	844		980
Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	127,667		120,327
Allowance for loan losses	1,065	1,047	1,300	1,287	1,297	1,095
Loans and Leases Receivable, Net of Deferred Income	127,667		120,327
Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	959,451		936,255
Allowance for loan losses	5,023	4,927	3,609	3,825	3,494	3,607
Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	312,896		306,128
Allowance for loan losses	1,326	1,351	624	625	639	665
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	29,162		28,414
Allowance for loan losses	535	526	86	67	73	105
Loans and Leases Receivable, Net of Deferred Income	29,162		28,414
Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	10,006		10,073
Allowance for loan losses	5	7	22	18	18	30
Loans and Leases Receivable, Net of Deferred Income	10,006		10,073
Other loans, including deposit overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	69		81
Allowance for loan losses	2	$ 0	5	$ 11	$ 9	$ 4
Loans and Leases Receivable, Net of Deferred Income	69		81
Commercial Real Estate, Owner Occupied Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	206,828		208,485
Loans and Leases Receivable, Net of Deferred Income	206,828		208,485
Commercial Real Estate, Non-Owner Occupied Class Segment [Domain]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	418,655		420,075
Loans and Leases Receivable, Net of Deferred Income	418,655		420,075
Commercial Real Estate, Farmland Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	37,506		36,340
Loans and Leases Receivable, Net of Deferred Income	37,506		36,340
Commercial Real Estate, Multifamily Properties Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	188,870		189,917
Loans and Leases Receivable, Net of Deferred Income	188,870		189,917
Commercial Real Estate, Construction Loans, 1-4 Family Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	7,166		7,786
Loans and Leases Receivable, Net of Deferred Income	7,166		7,786
Commercial Real Estate, Construction Loans, Other Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	100,426		73,652
Loans and Leases Receivable, Net of Deferred Income	100,426		73,652
Residential Real Estate, 1-4 Family, Closed End Senior Liens Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	276,580		269,822
Loans and Leases Receivable, Net of Deferred Income	276,580		269,822
Residential Real Estate, 1-4 Family, Closed End Junior Liens Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	12,612		10,197
Loans and Leases Receivable, Net of Deferred Income	12,612		10,197
Residential Real Estate, 1-4 Family, Revolving and Open End Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	23,704		26,109
Loans and Leases Receivable, Net of Deferred Income	$ 23,704		$ 26,109