SEGMENT REPORTING - Summary (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
SEGMENT REPORTING
Revenue	$ 36,213	$ 38,380	$ 110,909	$ 118,317
Cost of revenue	29,024	34,387	89,684	104,611
Gross profit (loss)	7,189	3,993	21,225	13,706
Operating expenses:
Selling, general and administrative expenses	10,734	14,556	35,169	43,055
Income (loss) from operations	(3,545)	(10,563)	(13,944)	(29,349)
Total other income (expense), net	(7,317)	(3,890)	(26,454)	(10,047)
Income (loss) before income taxes and non-controlling interests	(10,862)	(14,453)	(40,398)	(39,396)
Total assets:
Total assets:	162,636		162,636		$ 195,268
Corporate and Others
SEGMENT REPORTING
Revenue	0	0	0	0
Cost of revenue	3,561	4,651	10,986	14,170
Gross profit (loss)	(3,561)	(4,651)	(10,986)	(14,170)
Operating expenses:
Selling, general and administrative expenses	6,971	9,226	22,391	27,089
Income (loss) from operations	(10,532)	(13,877)	(33,377)	(41,259)
Total other income (expense), net	(7,317)	(3,894)	(26,454)	(10,051)
Income (loss) before income taxes and non-controlling interests	(17,849)	(17,771)	(59,831)	(51,310)
Total assets:
Total assets:	54,302		54,302		77,588
Servicer and Real Estate | Operating Segments
SEGMENT REPORTING
Revenue	28,702	30,866	87,495	91,349
Cost of revenue	18,312	22,082	56,075	64,235
Gross profit (loss)	10,390	8,784	31,420	27,114
Operating expenses:
Selling, general and administrative expenses	1,966	2,931	6,905	9,227
Income (loss) from operations	8,424	5,853	24,515	17,887
Total other income (expense), net	0	4	0	4
Income (loss) before income taxes and non-controlling interests	8,424	5,857	24,515	17,891
Total assets:
Total assets:	57,143		57,143		63,696
Origination | Operating Segments
SEGMENT REPORTING
Revenue	7,511	7,514	23,414	26,968
Cost of revenue	7,151	7,654	22,623	26,206
Gross profit (loss)	360	(140)	791	762
Operating expenses:
Selling, general and administrative expenses	1,797	2,399	5,873	6,739
Income (loss) from operations	(1,437)	(2,539)	(5,082)	(5,977)
Total other income (expense), net	0	0	0	0
Income (loss) before income taxes and non-controlling interests	(1,437)	$ (2,539)	(5,082)	$ (5,977)
Total assets:
Total assets:	$ 51,191		$ 51,191		$ 53,984