FAIR VALUE - Summary of assets measured at fair value on recurring basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financial Assets
Mortgage loans held for sale, at fair value	$ 10,470	$ 7,254
IRLC, net	1,199	763
Financial Liabilities
Forward commitments and FSC	664	740
Fair Value, Recurring
Financial Assets
Mortgage loans held for sale, at fair value	10,470	7,254
Loans held at fair value	11,922	13,726
Equity securities	751	758
Guarantee asset	199	189
Equity warrants	795	795
Swap derivative assets	1,199	763
Financial Liabilities
Swap derivative liabilities	664	740
Fair Value, Recurring | IRLC, net
Financial Assets
IRLC, net	813	345
Fair Value, Recurring | Forward commitments and FSC
Financial Liabilities
Forward commitments and FSC	23	351
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring
Financial Assets
Mortgage loans held for sale, at fair value	0	0
Loans held at fair value	0	0
Equity securities	629	636
Guarantee asset	0	0
Equity warrants	0	0
Swap derivative assets	0	0
Financial Liabilities
Swap derivative liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring | IRLC, net
Financial Assets
IRLC, net	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring | Forward commitments and FSC
Financial Liabilities
Forward commitments and FSC	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring
Financial Assets
Mortgage loans held for sale, at fair value	10,470	7,254
Loans held at fair value	0	0
Equity securities	122	122
Guarantee asset	0	0
Equity warrants	0	0
Swap derivative assets	1,199	763
Financial Liabilities
Swap derivative liabilities	664	740
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | IRLC, net
Financial Assets
IRLC, net	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | Forward commitments and FSC
Financial Liabilities
Forward commitments and FSC	23	351
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring
Financial Assets
Mortgage loans held for sale, at fair value	0	0
Loans held at fair value	11,922	13,726
Equity securities	0	0
Guarantee asset	199	189
Equity warrants	795	795
Swap derivative assets	0	0
Financial Liabilities
Swap derivative liabilities	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | IRLC, net
Financial Assets
IRLC, net	813	345
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Forward commitments and FSC
Financial Liabilities
Forward commitments and FSC	$ 0	$ 0