Loans, Allowance for Loan Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	$ 510	$ 121
Collectively evaluated for impairment	17,046	17,183
Total	17,556	17,304	$ 16,560	$ 15,815
Real Estate Loans [Member] | Residential [Member]
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	11	12
Collectively evaluated for impairment	1,059	1,135
Total	1,070	1,147	1,167	1,174
Real Estate Loans [Member] | Commercial [Member]
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	56	61
Collectively evaluated for impairment	8,338	8,038
Total	8,394	8,099	6,683	6,216
Real Estate Loans [Member] | Agricultural [Member]
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	14	14
Collectively evaluated for impairment	4,502	4,715
Total	4,516	4,729	4,917	4,953
Real Estate Loans [Member] | Construction [Member]
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	497	434
Total	497	434	151	122
Consumer [Member]
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	210	262
Total	210	262	237	321
Other Commercial Loans [Member]
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	429	34
Collectively evaluated for impairment	951	989
Total	1,380	1,023	1,504	1,226
Other Agricultural Loans [Member]
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	551	558
Total	551	558	789	864
State and Political Subdivision Loans [Member]
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	285	281
Total	285	281	470	479
Unallocated [Member]
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	653	771
Total	$ 653	$ 771	$ 642	$ 460