FAIR VALUE - Summary of assets measured at fair value on recurring basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financial Assets
Mortgage loans held for sale, at fair value	$ 12,324	$ 7,254
Derivative assets	1,441	763
Financial Liabilities
Forward commitments and FSC	1,712	740
Fair Value, Recurring
Financial Assets
Mortgage loans held for sale, at fair value	12,324	7,254
Loans held for sale	473
Loans held at fair value	8,646	13,726
Equity securities	771	758
Guarantee asset	270	189
Equity warrants	795	795
Swap derivative assets	1,441	763
Financial Liabilities
Swap derivative liabilities	1,712	740
Fair Value, Recurring | IRLC, net
Financial Assets
Derivative assets	1,078	345
Fair Value, Recurring | Forward commitments and FSC
Financial Assets
Derivative assets	85	7
Financial Liabilities
Forward commitments and FSC	113	358
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 for sale	0
Loans held at fair value	0	0
Equity securities	649	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
Derivative assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring | Forward commitments and FSC
Financial Assets
Derivative assets	0	0
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	12,324	7,254
Loans held for sale	473
Loans held at fair value	0	0
Equity securities	122	122
Guarantee asset	0	0
Equity warrants	0	0
Swap derivative assets	1,441	763
Financial Liabilities
Swap derivative liabilities	1,712	740
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | IRLC, net
Financial Assets
Derivative assets	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | Forward commitments and FSC
Financial Assets
Derivative assets	85	7
Financial Liabilities
Forward commitments and FSC	112	358
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring
Financial Assets
Mortgage loans held for sale, at fair value	0	0
Loans held for sale	0
Loans held at fair value	8,646	13,726
Equity securities	0	0
Guarantee asset	270	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
Derivative assets	1,078	345
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Forward commitments and FSC
Financial Assets
Derivative assets	0	0
Financial Liabilities
Forward commitments and FSC	$ 1	$ 0