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LOANS, ALLOWANCE FOR LOAN LOSSES AND IMPAIRED LOANS - Loans Receivable by Loan Type (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2020
--- | --- | --- | ---
Loans receivable |  |  |
Total Loans | $ 1,201,262 | $ 1,246,889 | $ 1,189,425
Performing loans |  |  |
Loans receivable |  |  |
TDR loans | 11,752 | 11,722 |
Loans other | 1,180,295 | 1,223,834 |
Total Loans | 1,192,047 | 1,235,556 |
Nonperforming loans |  |  |
Loans receivable |  |  |
TDR loans | 5,690 | 6,755 |
Loans other | 3,525 | 4,578 |
Total Loans | 9,215 | 11,333 |
Commercial/agriculture real estate |  |  |
Loans receivable |  |  |
Total Loans | 795,476 | 797,139 | 802,469
Commercial/agriculture real estate | Performing loans |  |  |
Loans receivable |  |  |
TDR loans | 4,472 | 4,695 |
Loans other | 785,733 | 786,533 |
Total Loans | 790,205 | 791,228 |
Commercial/agriculture real estate | Nonperforming loans |  |  |
Loans receivable |  |  |
TDR loans | 4,184 | 4,691 |
Loans other | 1,087 | 1,220 |
Total Loans | 5,271 | 5,911 |
C&I/Agricultural operating |  |  |
Loans receivable |  |  |
Total Loans | 243,114 | 273,040 | 159,946
C&I/Agricultural operating | Performing loans |  |  |
Loans receivable |  |  |
TDR loans | 4,042 | 3,836 |
Loans other | 237,917 | 266,975 |
Total Loans | 241,959 | 270,811 |
C&I/Agricultural operating | Nonperforming loans |  |  |
Loans receivable |  |  |
TDR loans | 758 | 1,287 |
Loans other | 397 | 942 |
Total Loans | 1,155 | 2,229 |
Residential mortgage |  |  |
Loans receivable |  |  |
Total Loans | 127,622 | 137,646 | 173,412
Residential mortgage | Performing loans |  |  |
Loans receivable |  |  |
TDR loans | 3,195 | 3,142 |
Loans other | 121,746 | 131,470 |
Total Loans | 124,941 | 134,612 |
Residential mortgage | Nonperforming loans |  |  |
Loans receivable |  |  |
TDR loans | 742 | 777 |
Loans other | 1,939 | 2,257 |
Total Loans | 2,681 | 3,034 |
Consumer installment |  |  |
Loans receivable |  |  |
Total Loans | 35,050 | 39,064 | $ 53,598
Consumer installment | Performing loans |  |  |
Loans receivable |  |  |
TDR loans | 43 | 49 |
Loans other | 34,899 | 38,856 |
Total Loans | 34,942 | 38,905 |
Consumer installment | Nonperforming loans |  |  |
Loans receivable |  |  |
TDR loans | 6 | 0 |
Loans other | 102 | 159 |
Total Loans | $ 108 | $ 159 |

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