LOANS AND ALLOWANCE FOR CREDIT LOSSES - Receivables Past Due (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Past Due [Line Items]
Financing receivable	$ 2,202,356	$ 2,071,419
30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	5,351	5,047
60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	1,583	1,588
90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	4,195	5,256
Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	11,129	11,891
Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	2,191,227	2,059,528
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Financing receivable	309,221	299,521
Commercial and industrial | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	884	140
Commercial and industrial | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	52	201
Commercial and industrial | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	64	702
Commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	1,000	1,043
Commercial and industrial | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	308,221	298,478
Commercial Mortgages
Financing Receivable, Past Due [Line Items]
Financing receivable	1,362,040	1,217,004
Commercial Mortgages | Construction
Financing Receivable, Past Due [Line Items]
Financing receivable	109,607	94,943
Commercial Mortgages | Construction | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	0	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	0	0
Commercial Mortgages | Construction | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	0	0
Commercial Mortgages | Construction | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	109,607	94,943
Commercial Mortgages | Owner occupied commercial real estate
Financing Receivable, Past Due [Line Items]
Financing receivable	169,914	142,279
Commercial Mortgages | Owner occupied commercial real estate | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	0	82
Commercial Mortgages | Owner occupied commercial real estate | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	0	0
Commercial Mortgages | Owner occupied commercial real estate | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	97	96
Commercial Mortgages | Owner occupied commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	97	178
Commercial Mortgages | Owner occupied commercial real estate | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	169,817	142,101
Commercial Mortgages | Non-owner occupied commercial real estate
Financing Receivable, Past Due [Line Items]
Financing receivable	1,082,519	979,782
Commercial Mortgages | Non-owner occupied commercial real estate | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	376	950
Commercial Mortgages | Non-owner occupied commercial real estate | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	25	0
Commercial Mortgages | Non-owner occupied commercial real estate | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	2,301	3,162
Commercial Mortgages | Non-owner occupied commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	2,702	4,112
Commercial Mortgages | Non-owner occupied commercial real estate | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	1,079,817	975,670
Residential Mortgages
Financing Receivable, Past Due [Line Items]
Financing receivable	277,729	274,979
Residential Mortgages | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	1,532	1,529
Residential Mortgages | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	786	662
Residential Mortgages | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	997	696
Residential Mortgages | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	3,315	2,887
Residential Mortgages | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	274,414	272,092
Consumer Loans
Financing Receivable, Past Due [Line Items]
Financing receivable	253,366	279,915
Consumer Loans | Home equity lines and loans
Financing Receivable, Past Due [Line Items]
Financing receivable	103,072	93,220
Consumer Loans | Home equity lines and loans | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	424	231
Consumer Loans | Home equity lines and loans | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	15	0
Consumer Loans | Home equity lines and loans | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	272	364
Consumer Loans | Home equity lines and loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	711	595
Consumer Loans | Home equity lines and loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	102,361	92,625
Consumer Loans | Indirect consumer loans
Financing Receivable, Past Due [Line Items]
Financing receivable	143,154	178,118
Consumer Loans | Indirect consumer loans | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	2,119	2,101
Consumer Loans | Indirect consumer loans | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	696	719
Consumer Loans | Indirect consumer loans | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	460	235
Consumer Loans | Indirect consumer loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	3,275	3,055
Consumer Loans | Indirect consumer loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	139,879	175,063
Consumer Loans | Direct consumer loans
Financing Receivable, Past Due [Line Items]
Financing receivable	7,140	8,577
Consumer Loans | Direct consumer loans | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	16	14
Consumer Loans | Direct consumer loans | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	9	6
Consumer Loans | Direct consumer loans | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	4	1
Consumer Loans | Direct consumer loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	29	21
Consumer Loans | Direct consumer loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable	$ 7,111	$ 8,556