SEGMENT REPORTING (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 Information [Line Items]
Net fee revenues from external sources	$ 16,345	$ 17,601	$ 33,850	$ 36,075
Net intersegment revenues	0	0	0	0
Other, net	(742)	(117)	(1,031)	(272)
Total revenues	15,603	17,484	32,819	35,803
Segment assets	129,925	152,264	129,925	152,264	$ 139,605
Goodwill	16,401	16,401	16,401	16,401	$ 16,401
Operating Segments | Advisory
Segment Reporting Information [Line Items]
Net fee revenues from external sources	10,980	11,385	22,770	23,794
Net intersegment revenues	536	624	1,113	1,300
Other, net	(742)	(117)	(1,031)	(272)
Total revenues	10,774	11,892	22,852	24,822
Segment assets	223,773	211,651	223,773	211,651
Goodwill	0	0	0	0
Operating Segments | Trust
Segment Reporting Information [Line Items]
Net fee revenues from external sources	5,365	6,216	11,080	12,281
Net intersegment revenues	88	87	178	168
Other, net	0	0	0	0
Total revenues	5,453	6,303	11,258	12,449
Segment assets	52,105	57,214	52,105	57,214
Goodwill	16,401	16,401	16,401	16,401
Westwood Holdings
Segment Reporting Information [Line Items]
Net fee revenues from external sources	0	0	0	0
Net intersegment revenues	0	0	0	0
Other, net	0	0	0	0
Total revenues	0	0	0	0
Segment assets	28,586	12,458	28,586	12,458
Goodwill	0	0	0	0
Eliminations
Segment Reporting Information [Line Items]
Net fee revenues from external sources	0	0	0	0
Net intersegment revenues	(624)	(711)	(1,291)	(1,468)
Other, net	0	0	0	0
Total revenues	(624)	(711)	(1,291)	(1,468)
Segment assets	(174,539)	(129,059)	(174,539)	(129,059)
Goodwill	$ 0	$ 0	$ 0	$ 0