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Loans, Impaired Financing Receivable (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | $ 19,192 |  | $ 19,050
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 12,885 |  | 13,047
Recorded Investment With Allowance | 4,212 |  | 4,230
Total Recorded Investment | 17,097 |  | 17,277
Related Allowance | 485 |  | 510
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 17,028 | $ 19,558 |
Interest Income Recognized | 98 | 135 |
Interest Income Recognized Cash Basis | 7 | 2 |
Real Estate Loans [Member] | Mortgages [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 1,059 |  | 1,070
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 724 |  | 740
Recorded Investment With Allowance | 122 |  | 123
Total Recorded Investment | 846 |  | 863
Related Allowance | 9 |  | 9
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 851 | 1,031 |
Interest Income Recognized | 5 | 5 |
Interest Income Recognized Cash Basis | 0 | 0 |
Real Estate Loans [Member] | Home Equity [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 147 |  | 150
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 69 |  | 70
Recorded Investment With Allowance | 54 |  | 57
Total Recorded Investment | 123 |  | 127
Related Allowance | 8 |  | 9
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 124 | 146 |
Interest Income Recognized | 1 | 2 |
Interest Income Recognized Cash Basis | 0 | 0 |
Real Estate Loans [Member] | Commercial [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 10,100 |  | 9,847
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 8,408 |  | 8,323
Recorded Investment With Allowance | 913 |  | 860
Total Recorded Investment | 9,321 |  | 9,183
Related Allowance | 101 |  | 95
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 9,238 | 11,486 |
Interest Income Recognized | 67 | 104 |
Interest Income Recognized Cash Basis | 7 | 2 |
Real Estate Loans [Member] | Agricultural [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 4,791 |  | 4,811
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 2,777 |  | 2,799
Recorded Investment With Allowance | 1,784 |  | 1,846
Total Recorded Investment | 4,561 |  | 4,645
Related Allowance | 12 |  | 83
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 4,590 | 3,777 |
Interest Income Recognized | 22 | 21 |
Interest Income Recognized Cash Basis | 0 | 0 |
Consumer [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 1 |  | 2
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 1 |  | 2
Recorded Investment With Allowance | 0 |  | 0
Total Recorded Investment | 1 |  | 2
Related Allowance | 0 |  | 0
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 1 | 3 |
Interest Income Recognized | 0 | 0 |
Interest Income Recognized Cash Basis | 0 | 0 |
Other Commercial Loans [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 1,793 |  | 1,908
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 889 |  | 1,094
Recorded Investment With Allowance | 238 |  | 241
Total Recorded Investment | 1,127 |  | 1,335
Related Allowance | 170 |  | 170
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 1,121 | 1,839 |
Interest Income Recognized | 1 | 1 |
Interest Income Recognized Cash Basis | 0 | 0 |
Other Agricultural Loans [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 1,301 |  | 1,262
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 17 |  | 19
Recorded Investment With Allowance | 1,101 |  | 1,103
Total Recorded Investment | 1,118 |  | 1,122
Related Allowance | 185 |  | $ 144
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 1,103 | 1,276 |
Interest Income Recognized | 2 | 2 |
Interest Income Recognized Cash Basis | $ 0 | $ 0 |

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