SECURITIES - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Schedule of Held-to-maturity Securities [Line Items]
Securities held for investment, allowance	$ (158,000)	$ 0
Proceeds from sales and calls of available-for-sale securities	9,100,000	0
Gross realized gains	49,000	14,000
Gross realized losses	(29,000)	0
Gross realized losses and calls of securities	2,500,000	4,700,000
Realized gain (loss)	0
Gross value of securities with BBB rating	$ 33,412,000	$ 33,705,000
Number of Securities | security	99	105
Other investments, carried at fair value	$ 20,200,000	$ 15,900,000
Number of held to maturity securities in an unrecognized loss position | security	11	11
Unrecognized loss position of securities held to maturity	$ 5,089,000	$ 4,591,000
Fair Value Measured at Net Asset Value Per Share
Schedule of Held-to-maturity Securities [Line Items]
Alternative investment	109,000	157,000
Increase in net asset value	$ (78,000)	7,000
BBB Split Rating
Schedule of Held-to-maturity Securities [Line Items]
Number of securities | security	1,000
Gross value of securities with BBB rating	$ 2,000,000
Commitments to purchase investments
Schedule of Held-to-maturity Securities [Line Items]
Undispersed loan commitments	820,000	850,000
Corporate Bonds
Schedule of Held-to-maturity Securities [Line Items]
Gross value of securities with BBB rating	$ 18,600,000	$ 18,600,000
Number of Securities | security	30	31
Number of held to maturity securities in an unrecognized loss position | security	9	9
Unrecognized loss position of securities held to maturity	$ 3,593,000	$ 2,281,000
Asset-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Gross value of securities with BBB rating	$ 14,812,000	$ 15,105,000
Number of Securities | security	3	3
Number of held to maturity securities in an unrecognized loss position | security	2	2
Unrecognized loss position of securities held to maturity	$ 1,496,000	$ 2,310,000
Debt securities | Asset Pledged as Collateral | Public Deposits, FHLB Advances and Derivatives
Schedule of Held-to-maturity Securities [Line Items]
Securities pledged as collateral	$ 11,700,000	$ 4,200,000
Municipal bonds
Schedule of Held-to-maturity Securities [Line Items]
Number of Securities | security	5
US Government agencies, Treasury notes and mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Number of Securities | security	61