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LOANS, ALLOWANCE FOR LOAN LOSSES AND IMPAIRED LOANS - Accounts, Notes, Loans and Financing Receivable (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Loans receivable |  |
Total Past Due Accruing and Nonaccrual Loans | $ 1,416,135 | $ 1,317,045
Performing loans |  |
Loans receivable |  |
TDR loans | 5,171 | 7,984
Other loans | 1,399,514 | 1,297,236
Total Past Due Accruing and Nonaccrual Loans | 1,404,685 | 1,305,220
Nonperforming loans |  |
Loans receivable |  |
TDR loans | 2,617 | 4,539
Other loans | 8,833 | 7,286
Total Past Due Accruing and Nonaccrual Loans | 11,450 | 11,825
Commercial/Agricultural real estate: |  |
Loans receivable |  |
Total Past Due Accruing and Nonaccrual Loans | 1,125,279 | 1,034,829
Commercial/Agricultural real estate: | Performing loans |  |
Loans receivable |  |
TDR loans | 1,336 | 4,618
Other loans | 1,115,465 | 1,021,346
Total Past Due Accruing and Nonaccrual Loans | 1,116,801 | 1,025,964
Commercial/Agricultural real estate: | Nonperforming loans |  |
Loans receivable |  |
TDR loans | 1,878 | 3,389
Other loans | 6,600 | 5,476
Total Past Due Accruing and Nonaccrual Loans | 8,478 | 8,865
C&I/Agricultural operating: |  |
Loans receivable |  |
Total Past Due Accruing and Nonaccrual Loans | 164,819 | 162,510
C&I/Agricultural operating: | Performing loans |  |
Loans receivable |  |
TDR loans | 960 | 649
Other loans | 162,417 | 160,570
Total Past Due Accruing and Nonaccrual Loans | 163,377 | 161,219
C&I/Agricultural operating: | Nonperforming loans |  |
Loans receivable |  |
TDR loans | 391 | 554
Other loans | 1,051 | 737
Total Past Due Accruing and Nonaccrual Loans | 1,442 | 1,291
Residential mortgage: |  |
Loans receivable |  |
Total Past Due Accruing and Nonaccrual Loans | 108,651 | 94,861
Residential mortgage: | Performing loans |  |
Loans receivable |  |
TDR loans | 2,875 | 2,681
Other loans | 104,287 | 90,591
Total Past Due Accruing and Nonaccrual Loans | 107,162 | 93,272
Residential mortgage: | Nonperforming loans |  |
Loans receivable |  |
TDR loans | 348 | 593
Other loans | 1,141 | 996
Total Past Due Accruing and Nonaccrual Loans | 1,489 | 1,589
Consumer installment: |  |
Loans receivable |  |
Total Past Due Accruing and Nonaccrual Loans | 17,386 | 24,845
Consumer installment: | Performing loans |  |
Loans receivable |  |
TDR loans | 0 | 36
Other loans | 17,345 | 24,729
Total Past Due Accruing and Nonaccrual Loans | 17,345 | 24,765
Consumer installment: | Nonperforming loans |  |
Loans receivable |  |
TDR loans | 0 | 3
Other loans | 41 | 77
Total Past Due Accruing and Nonaccrual Loans | $ 41 | $ 80

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