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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Collateral Dependent (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized Cost Basis	$ 3,828	$ 4,187
Related Allowance	24,890	24,209	$ 22,522	$ 21,388
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized Cost Basis	800	693
Related Allowance	4,339	4,524	5,153	4,520
Commercial real estate:
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized Cost Basis	2,711	3,167
Related Allowance	15,643	14,363	12,089	11,214
Consumer Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized Cost Basis	317	327
Related Allowance	2,511	2,534	$ 2,807	$ 3,395
Collateral Pledged
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized Cost Basis	1,044	2,173
Related Allowance	211	203
Commercial Real Estate And Business Assets \| Commercial and Industrial \| Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized Cost Basis	49	50
Related Allowance	0	0
Commercial Real Estate and Residential Real Estate \| Commercial real estate: \| Owner occupied commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized Cost Basis	153	629
Related Allowance	1	4
Commercial Real Estate and Residential Real Estate \| Commercial real estate: \| Non-owner occupied commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized Cost Basis	525	1,167
Related Allowance	210	199
Residential Real Estate \| Consumer Loans \| Home equity lines and loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized Cost Basis	317	327
Related Allowance	$ 0	$ 0