Loans, Major Classifications of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	$ 1,458,404		$ 1,401,278
Allowance for loan losses	7,932	$ 7,956	5,646	$ 5,644	$ 5,833	$ 5,506
Total	1,450,472		1,395,632
Loans and Leases Receivable, Net of Deferred Income	1,458,404		1,401,278
Loans and Leases Receivable, Deferred Income	796		980
Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	125,882		120,327
Allowance for loan losses	1,067	1,065	1,300	1,254	1,287	1,095
Loans and Leases Receivable, Net of Deferred Income	125,882		120,327
Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	980,082		936,255
Allowance for loan losses	4,953	5,023	3,609	3,661	3,825	3,607
Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	313,841		306,128
Allowance for loan losses	1,447	1,326	624	632	625	665
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	27,186		28,414
Allowance for loan losses	460	535	86	72	67	105
Loans and Leases Receivable, Net of Deferred Income	27,186		28,414
Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	11,333		10,073
Allowance for loan losses	5	5	22	20	18	30
Loans and Leases Receivable, Net of Deferred Income	11,333		10,073
Other loans, including deposit overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	80		81
Allowance for loan losses	0	$ 2	5	$ 5	$ 11	$ 4
Loans and Leases Receivable, Net of Deferred Income	80		81
Commercial Real Estate, Owner Occupied Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	204,596		208,485
Loans and Leases Receivable, Net of Deferred Income	204,596		208,485
Commercial Real Estate, Non-Owner Occupied Class Segment [Domain]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	436,189		420,075
Loans and Leases Receivable, Net of Deferred Income	436,189		420,075
Commercial Real Estate, Farmland Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	38,232		36,340
Loans and Leases Receivable, Net of Deferred Income	38,232		36,340
Commercial Real Estate, Multifamily Properties Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	189,987		189,917
Loans and Leases Receivable, Net of Deferred Income	189,987		189,917
Commercial Real Estate, Construction Loans, 1-4 Family Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	6,937		7,786
Loans and Leases Receivable, Net of Deferred Income	6,937		7,786
Commercial Real Estate, Construction Loans, Other Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	104,141		73,652
Loans and Leases Receivable, Net of Deferred Income	104,141		73,652
Residential Real Estate, 1-4 Family, Closed End Senior Liens Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	276,525		269,822
Loans and Leases Receivable, Net of Deferred Income	276,525		269,822
Residential Real Estate, 1-4 Family, Closed End Junior Liens Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	13,854		10,197
Loans and Leases Receivable, Net of Deferred Income	13,854		10,197
Residential Real Estate, 1-4 Family, Revolving and Open End Class Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	23,462		26,109
Loans and Leases Receivable, Net of Deferred Income	$ 23,462		$ 26,109