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Loans and ALLL (Summary of recorded investment in loans by segments) (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | $ 451 | $ 578 |
Collectively evaluated for impairment, ALLL | 9,399 | 8,525 |
Total, ALLL | 9,850 | 9,103 | $ 9,744
Individually evaluated for impairment, Loans | 22,018 | 26,910 |
Collectively evaluated for impairment, Loans | 1,242,155 | 1,274,127 |
Total | 1,264,173 | 1,301,037 |
Commercial [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | 12 | 13 |
Collectively evaluated for impairment, ALLL | 1,309 | 1,727 |
Total, ALLL | 1,321 | 1,740 | 2,162
Individually evaluated for impairment, Loans | 8,342 | 9,267 |
Collectively evaluated for impairment, Loans | 732,578 | 798,172 |
Total | 740,920 | 807,439 |
Agricultural [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | 0 | 0 |
Collectively evaluated for impairment, ALLL | 577 | 289 |
Total, ALLL | 577 | 289 | 311
Individually evaluated for impairment, Loans | 10,935 | 14,189 |
Collectively evaluated for impairment, Loans | 93,379 | 79,766 |
Total | 104,314 | 93,955 |
Residential Real Estate [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | 439 | 565 |
Collectively evaluated for impairment, ALLL | 178 | 182 |
Total, ALLL | 617 | 747 | 1,363
Individually evaluated for impairment, Loans | 2,741 | 3,454 |
Collectively evaluated for impairment, Loans | 338,144 | 322,907 |
Total | 340,885 | 326,361 |
Consumer [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | 0 | 0 |
Collectively evaluated for impairment, ALLL | 961 | 908 |
Total, ALLL | 961 | 908 | 798
Individually evaluated for impairment, Loans | 0 | 0 |
Collectively evaluated for impairment, Loans | 78,054 | 73,282 |
Total | 78,054 | 73,282 |
Unallocated [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | 0 | 0 |
Collectively evaluated for impairment, ALLL | 6,374 | 5,419 |
Total, ALLL | $ 6,374 | $ 5,419 | $ 5,110

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