REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 145,066	$ 153,120
Operating Segment | Servicer and Real Estate
Disaggregation of Revenue [Line Items]
Revenue	115,467	119,661
Operating Segment | Origination
Disaggregation of Revenue [Line Items]
Revenue	29,599	33,459
Revenue recognized when services are performed or assets are sold
Disaggregation of Revenue [Line Items]
Revenue	124,022	132,700
Revenue recognized when services are performed or assets are sold | Operating Segment | Servicer and Real Estate
Disaggregation of Revenue [Line Items]
Revenue	95,643	100,477
Revenue recognized when services are performed or assets are sold | Operating Segment | Origination
Disaggregation of Revenue [Line Items]
Revenue	28,379	32,223
Revenue related to technology platforms and professional services
Disaggregation of Revenue [Line Items]
Revenue	12,771	12,381
Revenue related to technology platforms and professional services | Operating Segment | Servicer and Real Estate
Disaggregation of Revenue [Line Items]
Revenue	12,136	11,655
Revenue related to technology platforms and professional services | Operating Segment | Origination
Disaggregation of Revenue [Line Items]
Revenue	635	726
Reimbursable expenses revenue
Disaggregation of Revenue [Line Items]
Revenue	8,273	8,039
Reimbursable expenses revenue | Operating Segment | Servicer and Real Estate
Disaggregation of Revenue [Line Items]
Revenue	7,688	7,529
Reimbursable expenses revenue | Operating Segment | Origination
Disaggregation of Revenue [Line Items]
Revenue	$ 585	$ 510