PROPERTY AND EQUIPMENT - Property and Equipment at Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 14,014		$ 14,014		$ 14,299
Accumulated depreciation	(11,118)		(11,118)		(10,821)
Property and equipment, net	2,896		2,896		3,478
Depreciation expense	354	$ 443	709	$ 903
Computer equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	3,611		3,611		3,551
Technical equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	3,246		3,246		3,236
Facilities
Property, Plant and Equipment [Line Items]
Total property and equipment	3,688		3,688		3,663
Instruments
Property, Plant and Equipment [Line Items]
Total property and equipment	3,402		3,402		3,735
Capital projects in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 67		$ 67		$ 114