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Loans and ALLL (Summary of recorded investment in loans by segments) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | $ 578 | $ 911 |
Collectively evaluated for impairment, ALLL | 8,525 | 8,833 |
Total, ALLL | 9,103 | 9,744 | $ 7,939
Individually evaluated for impairment, Loans | 26,910 | 27,936 |
Collectively evaluated for impairment, Loans | 1,274,127 | 1,210,375 |
Total | 1,301,037 | 1,238,311 |
Commercial [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | 13 | 84 |
Collectively evaluated for impairment, ALLL | 1,727 | 2,078 |
Total, ALLL | 1,740 | 2,162 | 1,914
Individually evaluated for impairment, Loans | 9,267 | 9,821 |
Collectively evaluated for impairment, Loans | 798,172 | 746,865 |
Total | 807,439 | 756,686 |
Agricultural [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | 0 | 56 |
Collectively evaluated for impairment, ALLL | 289 | 255 |
Total, ALLL | 289 | 311 | 634
Individually evaluated for impairment, Loans | 14,189 | 13,796 |
Collectively evaluated for impairment, Loans | 79,766 | 86,665 |
Total | 93,955 | 100,461 |
Residential Real Estate [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | 565 | 771 |
Collectively evaluated for impairment, ALLL | 182 | 592 |
Total, ALLL | 747 | 1,363 | 2,047
Individually evaluated for impairment, Loans | 3,454 | 4,319 |
Collectively evaluated for impairment, Loans | 322,907 | 303,224 |
Total | 326,361 | 307,543 |
Consumer [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | 0 | 0 |
Collectively evaluated for impairment, ALLL | 908 | 798 |
Total, ALLL | 908 | 798 | 922
Individually evaluated for impairment, Loans | 0 | 0 |
Collectively evaluated for impairment, Loans | 73,282 | 73,621 |
Total | 73,282 | 73,621 |
Unallocated [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment, ALLL | 0 | 0 |
Collectively evaluated for impairment, ALLL | 5,419 | 5,110 |
Total, ALLL | $ 5,419 | $ 5,110 | $ 2,422

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