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ALLOWANCE FOR CREDIT LOSSES - Credit risk profile of loans (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Nonperforming loans past due | 90 days |  |
Current period gross charge offs, Total | $ 19,289 | $ 15,496 | $ 15,706
Performing |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 359,398 | 348,183 |
Prior year | 268,003 | 317,948 |
Two years before current year | 252,293 | 151,284 |
Three years before current year | 119,148 | 91,864 |
Four years before current year | 64,853 | 33,181 |
Prior | 152,608 | 131,427 |
Revolving Loans | 94,145 | 72,484 |
Total loans | 1,310,448 | 1,146,371 |
Nonperforming Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 176 | 232 |
Prior year | 477 | 1,189 |
Two years before current year | 1,349 | 756 |
Three years before current year | 771 | 757 |
Four years before current year | 526 | 598 |
Prior | 2,371 | 1,735 |
Revolving Loans | 760 | 1 |
Total loans | 6,430 | 5,268 |
Total other loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 359,574 | 348,415 |
Prior year | 268,480 | 319,137 |
Two years before current year | 253,642 | 152,040 |
Three years before current year | 119,919 | 92,621 |
Four years before current year | 65,379 | 33,779 |
Prior | 154,979 | 133,162 |
Revolving Loans | 94,905 | 72,485 |
Total loans | 1,316,878 | 1,151,639 |
Residential | First Liens |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 64,953 | 49,146 |
Prior year | 47,930 | 71,073 |
Two years before current year | 89,205 | 65,232 |
Three years before current year | 69,270 | 36,816 |
Four years before current year | 37,771 | 15,242 |
Prior | 138,824 | 119,591 |
Revolving Loans | 2,279 | 1,066 |
Total loans | 450,232 | 358,166 |
Current period gross charge offs, Prior | 221 | 167 |
Current period gross charge offs, Total | 221 | 167 |
Residential | First Liens | Performing |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 64,953 | 49,146 |
Prior year | 47,930 | 70,952 |
Two years before current year | 89,205 | 65,232 |
Three years before current year | 69,090 | 36,751 |
Four years before current year | 37,658 | 15,185 |
Prior | 136,805 | 118,087 |
Revolving Loans | 2,279 | 1,066 |
Total loans | 447,920 | 356,419 |
Residential | First Liens | Nonperforming Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior year |  | 121 |
Three years before current year | 180 | 65 |
Four years before current year | 113 | 57 |
Prior | 2,019 | 1,504 |
Total loans | 2,312 | 1,747 |
Residential | Home Equity |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 966 | 61 |
Prior year | 562 | 90 |
Two years before current year | 1,058 |  |
Three years before current year | 31 | 24 |
Four years before current year | 181 | 378 |
Prior | 1,257 | 926 |
Revolving Loans | 85,443 | 64,102 |
Total loans | 89,498 | 65,581 |
Current period gross charge offs, 2022 | 22 |  |
Current period gross charge offs, Prior | 28 |  |
Current period gross charge offs, Revolving Loans | 51 |  |
Current period gross charge offs, Total | 101 |  |
Residential | Home Equity | Performing |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 966 | 61 |
Prior year | 562 | 68 |
Two years before current year | 1,017 |  |
Three years before current year | 31 | 7 |
Four years before current year | 143 | 378 |
Prior | 1,149 | 866 |
Revolving Loans | 84,723 | 64,102 |
Total loans | 88,591 | 65,482 |
Residential | Home Equity | Nonperforming Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior year |  | 22 |
Two years before current year | 41 |  |
Three years before current year |  | 17 |
Four years before current year | 38 |  |
Prior | 108 | 60 |
Revolving Loans | 720 |  |
Total loans | 907 | 99 |
Residential | Junior Liens |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 16,989 | 15,050 |
Prior year | 12,410 | 15,484 |
Two years before current year | 12,631 | 8,293 |
Three years before current year | 6,469 | 5,661 |
Four years before current year | 5,260 | 4,280 |
Prior | 9,375 | 8,197 |
Revolving Loans | 1,578 | 1,698 |
Total loans | 64,712 | 58,663 |
Current period gross charge offs, 2023 | 15 |  |
Current period gross charge offs, 2020 |  | 24 |
Current period gross charge offs, Prior |  | 24 |
Current period gross charge offs, Total | 15 | 48 |
Residential | Junior Liens | Performing |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 16,989 | 15,050 |
Prior year | 12,371 | 15,431 |
Two years before current year | 12,590 | 8,248 |
Three years before current year | 6,431 | 5,557 |
Four years before current year | 5,200 | 4,280 |
Prior | 9,229 | 8,094 |
Revolving Loans | 1,578 | 1,698 |
Total loans | 64,388 | 58,358 |
Residential | Junior Liens | Nonperforming Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior year | 39 | 53 |
Two years before current year | 41 | 45 |
Three years before current year | 38 | 104 |
Four years before current year | 60 |  |
Prior | 146 | 103 |
Total loans | 324 | 305 |
Residential | All Other Residential |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 17,542 | 6,432 |
Prior year | 13,123 | 9,477 |
Two years before current year | 6,960 | 3,146 |
Three years before current year | 4,472 | 421 |
Four years before current year | 633 | 1,031 |
Prior | 1,595 | 1,549 |
Revolving Loans | 53 | 415 |
Total loans | 44,378 | 22,471 |
Current period gross charge offs, 2021 | 6 |  |
Current period gross charge offs, Prior |  | 1 |
Current period gross charge offs, Total | 6 | 1 |
Residential | All Other Residential | Performing |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 17,542 | 6,432 |
Prior year | 13,123 | 9,477 |
Two years before current year | 6,960 | 3,100 |
Three years before current year | 4,392 | 421 |
Four years before current year | 628 | 641 |
Prior | 1,559 | 1,511 |
Revolving Loans | 53 | 415 |
Total loans | 44,257 | 21,997 |
Residential | All Other Residential | Nonperforming Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Two years before current year |  | 46 |
Three years before current year | 80 |  |
Four years before current year | 5 | 390 |
Prior | 36 | 38 |
Total loans | 121 | 474 |
Residential | Motor Vehicle |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current period gross charge offs, 2024 | 478 |  |
Current period gross charge offs, 2023 | 2,692 |  |
Current period gross charge offs, 2022 | 4,839 |  |
Current period gross charge offs, 2021 | 1,751 |  |
Current period gross charge offs, 2020 | 587 |  |
Current period gross charge offs, Prior | 97 |  |
Current period gross charge offs, Total | 10,444 |  |
Residential | All Other Consumer |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current period gross charge offs, 2024 | 50 |  |
Current period gross charge offs, 2023 | 197 |  |
Current period gross charge offs, 2022 | 121 |  |
Current period gross charge offs, 2021 | 22 |  |
Current period gross charge offs, 2020 | 16 |  |
Current period gross charge offs, Prior | 24 |  |
Current period gross charge offs, Revolving Loans | 182 |  |
Current period gross charge offs, Total | 612 |  |
Consumer | Motor Vehicle |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 247,512 | 265,165 |
Prior year | 187,480 | 216,098 |
Two years before current year | 140,363 | 71,446 |
Three years before current year | 37,441 | 47,471 |
Four years before current year | 20,416 | 12,172 |
Prior | 3,349 | 2,207 |
Revolving Loans | 11 |  |
Total loans | 636,572 | 614,559 |
Current period gross charge offs, 2024 |  | 841 |
Current period gross charge offs, 2023 |  | 7,722 |
Current period gross charge offs, 2022 |  | 3,101 |
Current period gross charge offs, 2021 |  | 1,448 |
Current period gross charge offs, 2020 |  | 499 |
Current period gross charge offs, Prior |  | 174 |
Current period gross charge offs, Total |  | 13,785 |
Consumer | Motor Vehicle | Performing |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 247,368 | 264,933 |
Prior year | 187,134 | 215,125 |
Two years before current year | 139,251 | 70,926 |
Three years before current year | 37,043 | 46,939 |
Four years before current year | 20,130 | 12,038 |
Prior | 3,290 | 2,177 |
Revolving Loans | 11 |  |
Total loans | 634,227 | 612,138 |
Consumer | Motor Vehicle | Nonperforming Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 144 | 232 |
Prior year | 346 | 973 |
Two years before current year | 1,112 | 520 |
Three years before current year | 398 | 532 |
Four years before current year | 286 | 134 |
Prior | 59 | 30 |
Total loans | 2,345 | 2,421 |
Consumer | All Other Consumer |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 11,612 | 12,561 |
Prior year | 6,975 | 6,915 |
Two years before current year | 3,425 | 3,923 |
Three years before current year | 2,236 | 2,228 |
Four years before current year | 1,118 | 676 |
Prior | 579 | 692 |
Revolving Loans | 5,541 | 5,204 |
Total loans | 31,486 | 32,199 |
Current period gross charge offs, 2024 |  | 61 |
Current period gross charge offs, 2023 |  | 213 |
Current period gross charge offs, 2022 |  | 61 |
Current period gross charge offs, 2021 |  | 37 |
Current period gross charge offs, 2020 |  | 3 |
Current period gross charge offs, Prior |  | 5 |
Current period gross charge offs, Revolving Loans |  | 149 |
Current period gross charge offs, Total |  | 529 |
Consumer | All Other Consumer | Performing |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 11,580 | 12,561 |
Prior year | 6,883 | 6,895 |
Two years before current year | 3,270 | 3,778 |
Three years before current year | 2,161 | 2,189 |
Four years before current year | 1,094 | 659 |
Prior | 576 | 692 |
Revolving Loans | 5,501 | 5,203 |
Total loans | 31,065 | 31,977 |
Consumer | All Other Consumer | Nonperforming Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current year | 32 |  |
Prior year | 92 | 20 |
Two years before current year | 155 | 145 |
Three years before current year | 75 | 39 |
Four years before current year | 24 | 17 |
Prior | 3 |  |
Revolving Loans | 40 | 1 |
Total loans | $ 421 | $ 222 |

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- Definition The period past due of loans considered as nonperforming for purposes of credit quality, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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