PROPERTY AND EQUIPMENT, NET - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 19,275	$ 19,178
Accumulated depreciation and amortization	(14,869)	(14,391)
Property and equipment, net	4,406	4,787
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	16,104	16,033
Leasehold improvement
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 3,171	$ 3,145