BUSINESS COMBINATION - Schedule of Preliminary Allocation of the Purchase Price (Details) - USD ($) $ in Thousands	Sep. 30, 2025	May 21, 2025	Dec. 31, 2024
BUSINESS COMBINATION
Goodwill	$ 55,457		$ 0
Beowulf E&D
BUSINESS COMBINATION
Cash and cash equivalents		$ 269
Prepaid expenses		117
Other receivables		55
Other current assets		7
Property, plant and equipment, net		1,087
Goodwill		55,457
Operating lease right-of-use asset		8,101
Other assets		74
Accounts payable		(320)
Accrued compensation		(1,384)
Other accrued liabilities		(437)
Current portion of operating lease liability		(580)
Operating lease liability, net of current portion		(7,881)
Total purchase price		$ 54,565