SEGMENT REPORTING - Summary (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
SEGMENT REPORTING
Revenue	$ 40,421	$ 46,041	$ 79,937	$ 96,506
Cost of revenue	36,355	44,037	70,224	94,195
Gross profit	4,066	2,004	9,713	2,311
Operating expenses:
Selling, general and administrative expenses	14,525	16,556	28,499	35,442
Income (loss) from operations	(10,459)	(14,552)	(18,786)	(33,131)
Total other income (expense), net	(3,341)	(3,518)	(6,157)	(6,011)
Income (loss) before income taxes and non-controlling interests	(13,800)	(18,070)	(24,943)	(39,142)
Total assets:
Total assets:	224,839		224,839		$ 257,808
Corporate and Others
SEGMENT REPORTING
Revenue	0	965	0	1,522
Cost of revenue	4,697	8,952	9,519	19,053
Gross profit	(4,697)	(7,987)	(9,519)	(17,531)
Operating expenses:
Selling, general and administrative expenses	9,068	11,418	17,863	25,140
Income (loss) from operations	(13,765)	(19,405)	(27,382)	(42,671)
Total other income (expense), net	(3,341)	(3,520)	(6,157)	(6,015)
Income (loss) before income taxes and non-controlling interests	(17,106)	(22,925)	(33,539)	(48,686)
Total assets:
Total assets:	91,247		91,247		136,235
Servicer and Real Estate | Operating Segments
SEGMENT REPORTING
Revenue	31,947	30,150	60,483	62,791
Cost of revenue	22,413	22,204	42,153	47,975
Gross profit	9,534	7,946	18,330	14,816
Operating expenses:
Selling, general and administrative expenses	3,237	3,566	6,296	7,420
Income (loss) from operations	6,297	4,380	12,034	7,396
Total other income (expense), net	0	2	0	4
Income (loss) before income taxes and non-controlling interests	6,297	4,382	12,034	7,400
Total assets:
Total assets:	76,651		76,651		61,832
Origination | Operating Segments
SEGMENT REPORTING
Revenue	8,474	14,926	19,454	32,193
Cost of revenue	9,245	12,881	18,552	27,167
Gross profit	(771)	2,045	902	5,026
Operating expenses:
Selling, general and administrative expenses	2,220	1,572	4,340	2,882
Income (loss) from operations	(2,991)	473	(3,438)	2,144
Total other income (expense), net	0	0	0	0
Income (loss) before income taxes and non-controlling interests	(2,991)	$ 473	(3,438)	$ 2,144
Total assets:
Total assets:	$ 56,941		$ 56,941		$ 59,741