INVESTMENT SECURITIES - Narrative (Details) - USD ($)	1 Months Ended	12 Months Ended
	Apr. 30, 2022	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Net amortization of premiums and discounts		$ 0	$ 100,000
Transfer of securities from available-for-sale to held-to-maturity	$ 58,700,000	0	58,727,000
Unrealized loss on transfer of securities from available-for-sale to held-to-maturity	2,300,000
Gain (loss) recognized at the time of transfer	$ 0
Debt securities pledged as collateral		$ 45,100,000	$ 22,600,000
Shareholder equity held by one issuer (as a percent)		10.00%	10.00%
Securities sold		$ 0	$ 0
Held to maturity interest accrued		$ 400,000
Debt Securities, Held To Maturity, Accrued Interest After Allowance For Credit Loss, Statement Of Financial Position Extensible List Not Disclosed Flag		0.4 million
Bank Technology Fund
Debt Securities, Available-for-sale [Line Items]
Contractual obligation			6,000,000
Payments to partnership fund		$ 800,000
Balance with SBIC included in other assets		2,000,000
Committed investments to be made in the future		4,000,000
Debt securities pledged as collateral		39,300,000
Bank Technology Fund | Other Assets
Debt Securities, Available-for-sale [Line Items]
Contribution to committed investments			1,300,000
Small Business Investment Company ("SBIC")
Debt Securities, Available-for-sale [Line Items]
Contractual obligation		800,000
Return of capital, received		100,000	100,000
Small Business Investment Company ("SBIC") | Other Assets
Debt Securities, Available-for-sale [Line Items]
Contribution to committed investments		200,000
Balance with SBIC included in other assets		$ 2,200,000	$ 2,000,000