PROPERTY AND EQUIPMENT, NET - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 12,160	$ 13,276
Less: Accumulated depreciation	(11,225)	(11,749)
Property and equipment, net	935	1,527
Furniture and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,353	2,733
Laboratory equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	20	20
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 9,787	$ 10,523

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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