SEGMENT REPORTING - Summary (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
SEGMENT REPORTING
Revenue	$ 38,380	$ 43,243	$ 118,317	$ 139,749
Cost of revenue	34,387	40,667	104,611	134,862
Gross profit (loss)	3,993	2,576	13,706	4,887
Operating expenses:
Selling, general and administrative expenses	14,556	16,604	43,055	52,046
Income (loss) from operations	(10,563)	(14,028)	(29,349)	(47,159)
Total other income (expense), net	(3,890)	(3,870)	(10,047)	(9,881)
Income (loss) before income taxes and non-controlling interests	(14,453)	(17,898)	(39,396)	(57,040)
Total assets:
Total assets:	211,282		211,282		$ 257,808
Corporate and Others
SEGMENT REPORTING
Revenue	0	1,887	0	3,409
Cost of revenue	4,651	8,024	14,170	27,077
Gross profit (loss)	(4,651)	(6,137)	(14,170)	(23,668)
Operating expenses:
Selling, general and administrative expenses	9,226	11,729	27,089	36,869
Income (loss) from operations	(13,877)	(17,866)	(41,259)	(60,537)
Total other income (expense), net	(3,894)	(3,872)	(10,051)	(9,887)
Income (loss) before income taxes and non-controlling interests	(17,771)	(21,738)	(51,310)	(70,424)
Total assets:
Total assets:	91,896		91,896		136,235
Servicer and Real Estate | Operating Segments
SEGMENT REPORTING
Revenue	30,866	26,793	91,349	89,584
Cost of revenue	22,082	21,088	64,235	69,063
Gross profit (loss)	8,784	5,705	27,114	20,521
Operating expenses:
Selling, general and administrative expenses	2,931	3,289	9,227	10,709
Income (loss) from operations	5,853	2,416	17,887	9,812
Total other income (expense), net	4	2	4	6
Income (loss) before income taxes and non-controlling interests	5,857	2,418	17,891	9,818
Total assets:
Total assets:	64,885		64,885		61,832
Origination | Operating Segments
SEGMENT REPORTING
Revenue	7,514	14,563	26,968	46,756
Cost of revenue	7,654	11,555	26,206	38,722
Gross profit (loss)	(140)	3,008	762	8,034
Operating expenses:
Selling, general and administrative expenses	2,399	1,586	6,739	4,468
Income (loss) from operations	(2,539)	1,422	(5,977)	3,566
Total other income (expense), net	0	0	0	0
Income (loss) before income taxes and non-controlling interests	(2,539)	$ 1,422	(5,977)	$ 3,566
Total assets:
Total assets:	$ 54,501		$ 54,501		$ 59,741