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DEBT SECURITIES - Amortized cost and fair value of securities held-to-maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
Debt Securities, Held-to-Maturity, Maturity [Abstract]
Amortized Cost	$ 116,917		$ 95,044
Gross Unrecognized Gains	667		329
Gross Unrecognized Losses	(4,967)		(4,738)
Fair Value	112,617		90,635
Allowance for Credit Losses	(151)		(74)
US Treasury Securities
Debt Securities, Held-to-Maturity, Maturity [Abstract]
Amortized Cost	248		248
Gross Unrecognized Gains	0		1
Gross Unrecognized Losses	(1)		0
Fair Value	247		249
Allowance for Credit Losses	0		0
US Government-sponsored Enterprises Debt Securities
Debt Securities, Held-to-Maturity, Maturity [Abstract]
Amortized Cost	3,183		3,412
Gross Unrecognized Gains	2		3
Gross Unrecognized Losses	(182)		(131)
Fair Value	3,003		3,284
Allowance for Credit Losses	0		0
Municipals
Debt Securities, Held-to-Maturity, Maturity [Abstract]
Amortized Cost	3,160
Gross Unrecognized Gains	64
Gross Unrecognized Losses	0
Fair Value	3,224
Allowance for Credit Losses	0
Residential mortgage-backed securities issued by U.S. government agencies and sponsored enterprises \| Residential Portfolio Segment
Debt Securities, Held-to-Maturity, Maturity [Abstract]
Amortized Cost	53,757		59,839
Gross Unrecognized Gains	144		209
Gross Unrecognized Losses	(3,346)		(3,005)
Fair Value	50,555		57,043
Allowance for Credit Losses	0		0
Residential mortgage-backed securities issued by U.S. government agencies and sponsored enterprises \| Commercial Portfolio Segment
Debt Securities, Held-to-Maturity, Maturity [Abstract]
Amortized Cost	5,467		6,138
Gross Unrecognized Gains	0		0
Gross Unrecognized Losses	(15)		(8)
Fair Value	5,452		6,130
Allowance for Credit Losses	0		0
Residential Mortgage Back Securities - Other
Debt Securities, Held-to-Maturity, Maturity [Abstract]
Amortized Cost	696		751
Gross Unrecognized Gains	0		0
Gross Unrecognized Losses	(49)		(47)
Fair Value	647		704
Allowance for Credit Losses	0		0
Corporate bonds
Debt Securities, Held-to-Maturity, Maturity [Abstract]
Amortized Cost	50,406		24,656
Gross Unrecognized Gains	457		116
Gross Unrecognized Losses	(1,374)		(1,547)
Fair Value	49,489		23,225
Allowance for Credit Losses	$ (151)	$ (83)	$ (74)	$ (71)	$ (71)	$ (71)