PROPERTY AND EQUIPMENT, NET - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 18,838	$ 18,414
Accumulated depreciation	(13,710)	(12,326)
Property and equipment, net	5,128	6,088
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	15,765	15,420
Leasehold improvement
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 3,073	$ 2,994