INVESTMENT SECURITIES - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Debt Securities, Available-for-sale [Line Items]
Number of securities in unrealized loss position | security	28
Allowance for credit loss	$ 73	$ 69	$ 82	$ 75
Unrealized losses	50,082	44,736
Expected credit losses	0
Debt securities, held-to-maturity, allowance for credit loss	$ 0	0
Debt Securities
Debt Securities, Available-for-sale [Line Items]
Number of securities in portfolio | security	409
Number of securities in unrealized loss position | security	400
Number of securities in portfolio | security	30
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Debt Securities, Available-for-sale [Line Items]
Number of securities in unrealized loss position | security	309
Number of securities in unrealized loss position | security	21
SBA pool securities
Debt Securities, Available-for-sale [Line Items]
Number of securities in unrealized loss position | security	33
Allowance for credit loss	$ 0	0
Unrealized losses	$ 1,737	1,519
State, county and municipal securities
Debt Securities, Available-for-sale [Line Items]
Number of securities in unrealized loss position | security	24
Number of securities in unrealized loss position | security	7
Allowance for credit loss	$ 0	0
Unrealized losses	$ 1,137	944
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Number of securities in unrealized loss position | security	7
Allowance for credit loss	$ 73	69
Unrealized losses	$ 859	850
U.S. government-sponsored agencies
Debt Securities, Available-for-sale [Line Items]
Number of securities in unrealized loss position | security	1
Allowance for credit loss	$ 0	0
Unrealized losses	$ 40	38
U.S. Treasuries
Debt Securities, Available-for-sale [Line Items]
Number of securities in unrealized loss position | security	26
Allowance for credit loss	$ 0	0
Unrealized losses	11,697	11,793
Collateral Pledged
Debt Securities, Available-for-sale [Line Items]
Pledged securities, carrying value	$ 459,400	$ 532,600