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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

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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