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Loans, Allowance for Loan Losses (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Dec. 31, 2020
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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 | $ 107 |  | $ 121 | $ 269 |  |
Collectively evaluated for impairment | 18,184 |  | 17,183 | 17,065 |  |
Total | 18,291 | $ 17,570 | 17,304 | 17,334 | $ 16,931 | $ 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 | 6 |  | 12 | 16 |  |
Collectively evaluated for impairment | 999 |  | 1,135 | 1,174 |  |
Total | 1,005 | 1,015 | 1,147 | 1,190 | 1,174 | 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 | 60 |  | 61 | 97 |  |
Collectively evaluated for impairment | 9,877 |  | 8,038 | 7,581 |  |
Total | 9,937 | 9,216 | 8,099 | 7,678 | 7,106 | 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 | 24 |  | 14 | 12 |  |
Collectively evaluated for impairment | 4,514 |  | 4,715 | 4,734 |  |
Total | 4,538 | 4,484 | 4,729 | 4,746 | 4,706 | 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 | 0 |  |
Collectively evaluated for impairment | 678 |  | 434 | 538 |  |
Total | 678 | 563 | 434 | 538 | 496 | 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 | 4 |  | 0 | 0 |  |
Collectively evaluated for impairment | 228 |  | 262 | 318 |  |
Total | 232 | 464 | 262 | 318 | 85 | 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 | 13 |  | 34 | 35 |  |
Collectively evaluated for impairment | 380 |  | 989 | 1,096 |  |
Total | 393 | 1,173 | 1,023 | 1,131 | 1,328 | 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 | 109 |  |
Collectively evaluated for impairment | 1,359 |  | 558 | 339 |  |
Total | 1,359 | 446 | 558 | 448 | 583 | 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 | 0 |  |
Collectively evaluated for impairment | 325 |  | 281 | 296 |  |
Total | 325 | 323 | 281 | 296 | 404 | 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 | 0 |  |
Collectively evaluated for impairment | (176) |  | 771 | 989 |  |
Total | $ (176) | $ (114) | $ 771 | $ 989 | $ 1,049 | $ 460

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