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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Receivables Past Due (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual with No Allowance for Credit Losses | $ 6,422 | $ 8,529
Nonaccrual | 8,195 | 10,411
Loans Past Due 90 Days or More and Still Accruing | 13 | 10
Financing receivable | 2,011,472 | 1,972,664
Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 12,465 | 14,360
30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 6,771 | 9,562
60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,060 | 943
90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 4,634 | 3,855
Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,999,007 | 1,958,304
Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual with No Allowance for Credit Losses | 255 | 76
Nonaccrual | 2,007 | 1,930
Loans Past Due 90 Days or More and Still Accruing | 13 | 10
Financing receivable | 290,546 | 264,396
Commercial and industrial | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,295 | 1,237
Commercial and industrial | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 138 | 1,196
Commercial and industrial | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 271 | 31
Commercial and industrial | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 886 | 10
Commercial and industrial | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 289,251 | 263,159
Commercial Mortgages |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,154,712 | 1,122,925
Commercial Mortgages | Construction Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual with No Allowance for Credit Losses | 2,258 | 2,209
Nonaccrual | 2,258 | 2,209
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 146,369 | 138,887
Commercial Mortgages | Construction Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 2,258 | 4,371
Commercial Mortgages | Construction Loans | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 2,164
Commercial Mortgages | Construction Loans | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Commercial Mortgages | Construction Loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 2,258 | 2,207
Commercial Mortgages | Construction Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 144,111 | 134,516
Commercial Mortgages | Commercial mortgages, other |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual with No Allowance for Credit Losses | 1,668 | 3,732
Nonaccrual | 1,689 | 3,760
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 1,008,343 | 984,038
Commercial Mortgages | Commercial mortgages, other | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,306 | 1,386
Commercial Mortgages | Commercial mortgages, other | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,062 | 1,022
Commercial Mortgages | Commercial mortgages, other | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 94 | 103
Commercial Mortgages | Commercial mortgages, other | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 150 | 261
Commercial Mortgages | Commercial mortgages, other | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,007,037 | 982,652
Residential Mortgages |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual with No Allowance for Credit Losses | 1,438 | 1,315
Nonaccrual | 1,438 | 1,315
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 271,620 | 277,992
Residential Mortgages | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 4,522 | 3,030
Residential Mortgages | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 3,203 | 2,244
Residential Mortgages | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 422 | 201
Residential Mortgages | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 897 | 585
Residential Mortgages | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 267,098 | 274,962
Consumer Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 294,594 | 307,351
Consumer Loans | Home equity lines and loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual with No Allowance for Credit Losses | 320 | 508
Nonaccrual | 320 | 508
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 87,228 | 87,056
Consumer Loans | Home equity lines and loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 574 | 914
Consumer Loans | Home equity lines and loans | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 298 | 461
Consumer Loans | Home equity lines and loans | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 66 | 87
Consumer Loans | Home equity lines and loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 210 | 366
Consumer Loans | Home equity lines and loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 86,654 | 86,142
Consumer Loans | Indirect consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual with No Allowance for Credit Losses | 483 | 687
Nonaccrual | 483 | 687
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 198,407 | 210,423
Consumer Loans | Indirect consumer loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 2,469 | 3,400
Consumer Loans | Indirect consumer loans | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 2,034 | 2,473
Consumer Loans | Indirect consumer loans | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 202 | 501
Consumer Loans | Indirect consumer loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 233 | 426
Consumer Loans | Indirect consumer loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 195,938 | 207,023
Consumer Loans | Direct consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual with No Allowance for Credit Losses | 0 | 2
Nonaccrual | 0 | 2
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 8,959 | 9,872
Consumer Loans | Direct consumer loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 41 | 22
Consumer Loans | Direct consumer loans | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 36 | 2
Consumer Loans | Direct consumer loans | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 5 | 20
Consumer Loans | Direct consumer loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Consumer Loans | Direct consumer loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | $ 8,918 | $ 9,850

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