SEGMENT REPORTING - Schedule of Operating Performance (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Information [Line Items]
Total Net Sales	$ 35,246	$ 34,507
Total Other Segment Expenses	68,577	55,863
Depreciation and amortization	(6,033)	(2,602)
Stock-based compensation	(4,129)	(1,723)
Finance and interest expense, net	(2,114)	(2,729)
Net loss attributable to noncontrolling interests	(1,961)	(991)
Interest income	3,819	1,085
Other	1,031	435
Loss before taxes	(42,718)	(27,881)
Operating Segments
Segment Reporting Information [Line Items]
Total Net Sales	36,157	35,848
Total Other Segment Expenses	53,080	39,730
Adjusted EBITDA	(16,923)	(3,882)
Operating Segments | Defense and Space Technologies
Segment Reporting Information [Line Items]
Total Net Sales	36,157	35,848
Total Other Segment Expenses	47,662	36,916
Adjusted EBITDA	(11,505)	(1,068)
Operating Segments | Starlab Space Stations
Segment Reporting Information [Line Items]
Total Net Sales	0	0
Total Other Segment Expenses	5,418	2,814
Adjusted EBITDA	(5,418)	(2,814)
Intersegment eliminations
Segment Reporting Information [Line Items]
Total Net Sales	(911)	(1,341)
Total Other Segment Expenses	(911)	(1,341)
Adjusted EBITDA	0	0
Segment Reporting, Reconciling Item, Corporate Nonsegment
Segment Reporting Information [Line Items]
Adjusted EBITDA	(16,408)	(17,474)
Segment Reporting, Reconciling Item, Corporate Nonsegment | Corporate and other expenses
Segment Reporting Information [Line Items]
Total Other Segment Expenses	$ 16,408	$ 17,474