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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Receivables Past Due (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Non-accrual with no allowance for credit losses | $ 8,529 | $ 7,198
Non-accrual | 10,411 | 8,178
Loans Past Due 90 Days or More and Still Accruing | 10 | 1
Financing receivable | 1,972,664 | 1,829,448
Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 14,360 | 6,603
30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 9,562 | 4,084
60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 943 | 1,045
90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 3,855 | 1,474
Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,958,304 | 1,822,845
Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 138,887 |
Commercial mortgages |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 984,038 |
Home equity lines and loans |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 87,056 |
Indirect consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 210,423 |
Direct consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 9,872 |
Commercial Mortgages |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,122,925 | 996,913
Commercial Mortgages | Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual with no allowance for credit losses | 2,209 | 5
Non-accrual | 2,209 | 5
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 138,887 | 108,243
Commercial Mortgages | Construction | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 4,371 | 0
Commercial Mortgages | Construction | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 2,164 | 0
Commercial Mortgages | Construction | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Commercial Mortgages | Construction | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 2,207 | 0
Commercial Mortgages | Construction | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 134,516 | 108,243
Commercial Mortgages | Commercial mortgages |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual with no allowance for credit losses | 3,732 | 3,890
Non-accrual | 3,760 | 3,928
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 984,038 | 888,670
Commercial Mortgages | Commercial mortgages | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,386 | 1,544
Commercial Mortgages | Commercial mortgages | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,022 | 1,058
Commercial Mortgages | Commercial mortgages | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 103 | 0
Commercial Mortgages | Commercial mortgages | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 261 | 486
Commercial Mortgages | Commercial mortgages | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 982,652 | 887,126
Residential Mortgages |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual with no allowance for credit losses | 1,315 | 986
Non-accrual | 1,315 | 986
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 277,992 | 285,672
Residential Mortgages | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 3,030 | 2,363
Residential Mortgages | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 2,244 | 1,360
Residential Mortgages | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 201 | 709
Residential Mortgages | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 585 | 294
Residential Mortgages | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 274,962 | 283,309
Consumer Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 307,351 | 294,570
Consumer Loans | Credit cards |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual with no allowance for credit losses | 0 | 0
Non-accrual | 0 | 0
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 0 | 0
Consumer Loans | Credit cards | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Consumer Loans | Credit cards | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Consumer Loans | Credit cards | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Consumer Loans | Credit cards | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Consumer Loans | Credit cards | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Consumer Loans | Home equity lines and loans |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual with no allowance for credit losses | 508 | 729
Non-accrual | 508 | 760
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 87,056 | 81,401
Consumer Loans | Home equity lines and loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 914 | 756
Consumer Loans | Home equity lines and loans | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 461 | 193
Consumer Loans | Home equity lines and loans | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 87 | 121
Consumer Loans | Home equity lines and loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 366 | 442
Consumer Loans | Home equity lines and loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 86,142 | 80,645
Consumer Loans | Indirect consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual with no allowance for credit losses | 687 | 540
Non-accrual | 687 | 540
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 210,423 | 202,124
Consumer Loans | Indirect consumer loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 3,400 | 1,840
Consumer Loans | Indirect consumer loans | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 2,473 | 1,397
Consumer Loans | Indirect consumer loans | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 501 | 193
Consumer Loans | Indirect consumer loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 426 | 250
Consumer Loans | Indirect consumer loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 207,023 | 200,284
Consumer Loans | Direct consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual with no allowance for credit losses | 2 | 13
Non-accrual | 2 | 13
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 9,872 | 11,045
Consumer Loans | Direct consumer loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 22 | 22
Consumer Loans | Direct consumer loans | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 2 | 2
Consumer Loans | Direct consumer loans | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 20 | 19
Consumer Loans | Direct consumer loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 1
Consumer Loans | Direct consumer loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 9,850 | 11,023
Commercial and Agricultural Sector | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual with no allowance for credit losses | 76 | 1,035
Non-accrual | 1,904 | 1,946
Loans Past Due 90 Days or More and Still Accruing | 10 | 1
Financing receivable | 264,140 | 252,044
Commercial and Agricultural Sector | Commercial and industrial | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,237 | 78
Commercial and Agricultural Sector | Commercial and industrial | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 1,196 | 74
Commercial and Agricultural Sector | Commercial and industrial | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 31 | 3
Commercial and Agricultural Sector | Commercial and industrial | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 10 | 1
Commercial and Agricultural Sector | Commercial and industrial | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 262,903 | 251,966
Commercial and Agricultural Sector | Agricultural |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual with no allowance for credit losses | 0 | 0
Non-accrual | 26 | 0
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Financing receivable | 256 | 249
Commercial and Agricultural Sector | Agricultural | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Commercial and Agricultural Sector | Agricultural | 30 - 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Commercial and Agricultural Sector | Agricultural | 60 - 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Commercial and Agricultural Sector | Agricultural | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | 0 | 0
Commercial and Agricultural Sector | Agricultural | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing receivable | $ 256 | $ 249

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