FAIR VALUE MEASUREMENTS AND FAIR VALUES OF FINANCIAL INSTRUMENTS - Level 3 Valuation Techniques Recurring (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Recurring fair value measurements
Valuation Techniques and the Unobservable Inputs
Fair value	$ 2,720	$ 2,659
Valuation Technique, Discounted cash flow | Servicing rights.
Valuation Techniques and the Unobservable Inputs
Discount rate	13.00%	13.00%
Weighted-average PSA	112.00%	131.00%
Valuation Technique, Discounted cash flow | Recurring fair value measurements
Valuation Techniques and the Unobservable Inputs
Fair value	$ 2,720	$ 2,659