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Loans, Allowance for Loan Losses (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Jun. 30, 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 $ 129   $ 121      
Collectively evaluated for impairment 17,441   17,183      
Total 17,570 $ 17,556 17,304 $ 16,931 $ 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 1,004   1,135      
Total 1,015 1,070 1,147 1,174 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 77   61      
Collectively evaluated for impairment 9,139   8,038      
Total 9,216 8,394 8,099 7,106 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 26   14      
Collectively evaluated for impairment 4,458   4,715      
Total 4,484 4,516 4,729 4,706 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 563   434      
Total 563 497 434 496 151 122
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 464   262      
Total 464 210 262 85 237 321
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 15   34      
Collectively evaluated for impairment 1,158   989      
Total 1,173 1,380 1,023 1,328 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 446   558      
Total 446 551 558 583 789 864
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 323   281      
Total 323 285 281 404 470 479
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 (114)   771      
Total $ (114) $ 653 $ 771 $ 1,049 $ 642 $ 460