FAIR VALUE - Summary of assets measured at fair value on recurring basis (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Guarantee asset
Derivative Asset	$ 1,013		$ 1,060
Fair Value, Recurring | Forward commitments and FSC
Guarantee asset
Derivative Asset	5		225
Fair Value, Recurring | IRLC, net
Guarantee asset
Derivative Asset	801		358
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Loans Held at Fair Value
Guarantee asset
Balance at beginning of period	7,283	$ 13,726
Gains/(losses) in net income, net	57	50
Settlements	(1,177)	(1,502)
Balance at end of period	6,112	11,922
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Net Charge Off	(51)	(352)
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Forward commitments and FSC
Guarantee asset
Derivative Asset	0		0
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Guarantee Asset
Guarantee asset
Balance at beginning of period	235	189
Unpaid principal	11	13
Gains/(losses) in net income, net	36	5
Settlements	(21)	(8)
Balance at end of period	261	199
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | IRLC, net
Guarantee asset
Balance at beginning of period	358	345
Loans acquired	801	813
Unpaid principal	873	819
Gains/(losses) in net income, net	515	474
Balance at end of period	801	813
Derivative Asset	801		358
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Equity Warrants
Guarantee asset
Balance at beginning of period	765	795
Balance at end of period	765	$ 795
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring | Forward commitments and FSC
Guarantee asset
Derivative Asset	0		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring | IRLC, net
Guarantee asset
Derivative Asset	0		0
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | Forward commitments and FSC
Guarantee asset
Derivative Asset	5		225
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | IRLC, net
Guarantee asset
Derivative Asset	$ 0		$ 0