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LOANS AND RELATED ALLOWANCE FOR LOAN LOSSES, Impaired Financing Receivable (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | $ 14,653 | $ 17,905 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 11,292 | 14,878 |
Recorded Investment With Allowance | 677 | 655 |
Total Recorded Investment | 11,969 | 15,533 |
Related Allowance | 102 | 121 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 13,040 | 15,880 | $ 18,278
Interest Income Recognized | 356 | 395 | 468
Interest Income Recognized Cash Basis | 10 | 31 | 27
Real Estate Loans [Member] | Mortgages [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 395 | 697 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 242 | 495 |
Recorded Investment With Allowance | 39 | 45 |
Total Recorded Investment | 281 | 540 |
Related Allowance | 4 | 6 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 421 | 682 | 956
Interest Income Recognized | 12 | 16 | 20
Interest Income Recognized Cash Basis | 0 | 0 | 0
Real Estate Loans [Member] | Home Equity [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 71 | 97 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 39 | 37 |
Recorded Investment With Allowance | 15 | 43 |
Total Recorded Investment | 54 | 80 |
Related Allowance | 0 | 6 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 64 | 99 | 139
Interest Income Recognized | 4 | 4 | 6
Interest Income Recognized Cash Basis | 0 | 0 | 0
Real Estate Loans [Member] | Commercial [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 6,655 | 9,330 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 5,314 | 8,096 |
Recorded Investment With Allowance | 361 | 285 |
Total Recorded Investment | 5,675 | 8,381 |
Related Allowance | 57 | 61 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 6,216 | 8,789 | 10,354
Interest Income Recognized | 207 | 288 | 358
Interest Income Recognized Cash Basis | 10 | 31 | 27
Real Estate Loans [Member] | Agricultural [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 6,062 | 5,694 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 5,192 | 5,167 |
Recorded Investment With Allowance | 188 | 188 |
Total Recorded Investment | 5,380 | 5,355 |
Related Allowance | 24 | 14 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 5,540 | 4,562 | 3,918
Interest Income Recognized | 126 | 82 | 75
Interest Income Recognized Cash Basis | 0 | 0 | 0
Consumer [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 4 |  |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 0 |  |
Recorded Investment With Allowance | 4 |  |
Total Recorded Investment | 4 |  |
Related Allowance | 4 |  |
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 | 797 | 813 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 32 | 92 |
Recorded Investment With Allowance | 70 | 94 |
Total Recorded Investment | 102 | 186 |
Related Allowance | 13 | 34 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 260 | 704 | 1,671
Interest Income Recognized | 3 | 2 | 3
Interest Income Recognized Cash Basis | 0 | 0 | 0
Other Agricultural Loans [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 669 | 1,274 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 473 | 991 |
Recorded Investment With Allowance | 0 | 0 |
Total Recorded Investment | 473 | 991 |
Related Allowance | 0 | 0 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 538 | 1,044 | 1,237
Interest Income Recognized | 4 | 3 | 6
Interest Income Recognized Cash Basis | $ 0 | $ 0 | $ 0

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