PROPERTY AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 28,815		$ 29,140
Less: Accumulated depreciation	(24,816)		(25,007)
Total property and equipment, net	3,999		4,133
Depreciation expense	300	$ 200
Quantum computer systems
Property, Plant and Equipment [Line Items]
Total property and equipment	13,781		14,471
Lab equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	7,025		6,862
Computer equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	4,808		4,701
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	2,208		1,889
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	393		381
Construction-in-progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 600		$ 836