The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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PROPERTY AND EQUIPMENT - Property and Equipment at Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 14,351		$ 14,299
Accumulated depreciation	(11,135)		(10,821)
Property and equipment, net	3,216		3,478
Depreciation expense	355	$ 460
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment	3,553		3,551
Technical equipment
Property, Plant and Equipment [Line Items]
Property and equipment	3,238		3,236
Facilities
Property, Plant and Equipment [Line Items]
Property and equipment	3,688		3,663
Instruments
Property, Plant and Equipment [Line Items]
Property and equipment	3,812		3,735
Capital projects in progress
Property, Plant and Equipment [Line Items]
Property and equipment	$ 60		$ 114