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LOANS AND RELATED ALLOWANCE FOR LOAN LOSSES, Impaired Financing Receivable (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | $ 17,905 | $ 19,050 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 14,878 | 13,047 |
Recorded Investment With Allowance | 655 | 4,230 |
Total Recorded Investment | 15,533 | 17,277 |
Related Allowance | 121 | 510 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 15,880 | 18,278 | $ 21,294
Interest Income Recognized | 395 | 468 | 558
Interest Income Recognized Cash Basis | 31 | 27 | 24
Real Estate Loans [Member] | Mortgages [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 697 | 1,070 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 495 | 740 |
Recorded Investment With Allowance | 45 | 123 |
Total Recorded Investment | 540 | 863 |
Related Allowance | 6 | 9 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 682 | 956 | 1,062
Interest Income Recognized | 16 | 20 | 16
Interest Income Recognized Cash Basis | 0 | 0 | 0
Real Estate Loans [Member] | Home Equity [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 97 | 150 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 37 | 70 |
Recorded Investment With Allowance | 43 | 57 |
Total Recorded Investment | 80 | 127 |
Related Allowance | 6 | 9 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 99 | 139 | 119
Interest Income Recognized | 4 | 6 | 6
Interest Income Recognized Cash Basis | 0 | 0 | 0
Real Estate Loans [Member] | Commercial [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 9,330 | 9,847 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 8,096 | 8,323 |
Recorded Investment With Allowance | 285 | 860 |
Total Recorded Investment | 8,381 | 9,183 |
Related Allowance | 61 | 95 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 8,789 | 10,354 | 11,756
Interest Income Recognized | 288 | 358 | 453
Interest Income Recognized Cash Basis | 31 | 27 | 24
Real Estate Loans [Member] | Agricultural [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 5,694 | 4,811 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 5,167 | 2,799 |
Recorded Investment With Allowance | 188 | 1,846 |
Total Recorded Investment | 5,355 | 4,645 |
Related Allowance | 14 | 83 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 4,562 | 3,918 | 4,899
Interest Income Recognized | 82 | 75 | 78
Interest Income Recognized Cash Basis | 0 | 0 | 0
Consumer [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 0 | 2 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 0 | 2 |
Recorded Investment With Allowance | 0 | 0 |
Total Recorded Investment | 0 | 2 |
Related Allowance | 0 | 0 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment |  | 3 | 2
Interest Income Recognized |  | 0 | 0
Interest Income Recognized Cash Basis |  | 0 | 0
Other Commercial Loans [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 813 | 1,908 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 92 | 1,094 |
Recorded Investment With Allowance | 94 | 241 |
Total Recorded Investment | 186 | 1,335 |
Related Allowance | 34 | 170 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 704 | 1,671 | 2,056
Interest Income Recognized | 2 | 3 | 1
Interest Income Recognized Cash Basis | 0 | 0 | 0
Other Agricultural Loans [Member] |  |  |
Impaired Financing Receivable [Abstract] |  |  |
Unpaid Principal Balance | 1,274 | 1,262 |
Impaired Financing Receivable, Recorded Investment [Abstract] |  |  |
Recorded Investment With No Allowance | 991 | 19 |
Recorded Investment With Allowance | 0 | 1,103 |
Total Recorded Investment | 991 | 1,122 |
Related Allowance | 0 | 144 |
Impaired Financing Receivable, Average Recorded Investment [Abstract] |  |  |
Average Recorded Investment | 1,044 | 1,237 | 1,400
Interest Income Recognized | 3 | 6 | 4
Interest Income Recognized Cash Basis | $ 0 | $ 0 | $ 0

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