INVESTMENT SECURITIES - Amortized Cost and Fair Values of AFS Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 566,421	$ 549,089
Gross Unrealized Gains	1,253	1,317
Gross Unrealized Losses	38,592	36,887
Allowance for Credit Losses	0	0
Fair Value	529,082	513,519
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	20,050	20,057
Gross Unrealized Gains	0	0
Gross Unrealized Losses	2,337	2,217
Allowance for Credit Losses	0	0
Fair Value	17,713	17,840
U.S. Government Agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,444	3,994
Gross Unrealized Gains	129	157
Gross Unrealized Losses	0	0
Allowance for Credit Losses	0	0
Fair Value	3,573	4,151
States and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	221,404	221,624
Gross Unrealized Gains	7	28
Gross Unrealized Losses	20,965	18,530
Allowance for Credit Losses	0	0
Fair Value	200,446	203,122
GSE residential MBSs
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	60,430	61,669
Gross Unrealized Gains	0	0
Gross Unrealized Losses	3,587	4,037
Allowance for Credit Losses	0	0
Fair Value	56,843	57,632
GSE commercial MBSs
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,778	4,387
Gross Unrealized Gains	311	356
Gross Unrealized Losses	0	0
Allowance for Credit Losses	0	0
Fair Value	4,089	4,743
GSE residential CMOs
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	123,116	79,284
Gross Unrealized Gains	71	18
Gross Unrealized Losses	6,944	6,200
Allowance for Credit Losses	0	0
Fair Value	116,243	73,102
Non-agency CMOs
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	34,704	48,162
Gross Unrealized Gains	248	316
Gross Unrealized Losses	3,544	3,809
Allowance for Credit Losses	0	0
Fair Value	31,408	44,669
Asset-backed
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	99,386	109,786
Gross Unrealized Gains	487	442
Gross Unrealized Losses	1,215	2,094
Allowance for Credit Losses	0	0
Fair Value	98,658	108,134
Other
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	109	126
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Allowance for Credit Losses	0	0
Fair Value	$ 109	$ 126

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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