SEGMENT REPORTING - Schedule of Operating Performance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Total Net Sales	$ 39,587	$ 39,599	$ 119,768	$ 106,468
Total Other Segment Expenses	57,280	48,428	167,883	130,146
Depreciation & amortization	(3,130)	(4,124)	(8,440)	(9,595)
Stock-based compensation	(2,120)	(845)	(15,390)	(2,688)
Impairment	0	(3,594)	0	(3,594)
Finance and interest expense, net	(200)	(2,940)	(5,452)	(9,029)
Net loss attributable to noncontrolling interests	(2,063)	(280)	(4,737)	(3,138)
Interest income	4,313	1,386	7,826	1,386
Other	795	4,071	(6,655)	(5,672)
Loss before taxes	(20,098)	(15,155)	(80,963)	(56,032)
Operating Segments
Segment Reporting Information [Line Items]
Total Net Sales	40,199	41,558	122,363	112,429
Total Other Segment Expenses	48,931	35,067	136,448	115,771
Adjusted EBITDA	(8,732)	6,491	(14,085)	(3,342)
Operating Segments | Defense and National Security
Segment Reporting Information [Line Items]
Total Net Sales	28,508	21,772	87,244	55,501
Total Other Segment Expenses	30,464	20,896	87,244	53,870
Adjusted EBITDA	(1,956)	876	0	1,631
Operating Segments | Space Solutions
Segment Reporting Information [Line Items]
Total Net Sales	11,691	19,786	35,119	56,928
Total Other Segment Expenses	12,317	18,168	38,272	55,364
Adjusted EBITDA	(626)	1,618	(3,153)	1,564
Operating Segments | Starlab Space Stations
Segment Reporting Information [Line Items]
Total Net Sales	0	0	0	0
Total Other Segment Expenses	6,150	(3,997)	10,932	6,537
Adjusted EBITDA	(6,150)	3,997	(10,932)	(6,537)
Intersegment Eliminations
Segment Reporting Information [Line Items]
Total Net Sales	(612)	(1,959)	(2,595)	(5,961)
Total Other Segment Expenses	(612)	(1,959)	(2,595)	(5,961)
Adjusted EBITDA	0	0	0	(24)
Corporate and other expenses
Segment Reporting Information [Line Items]
Adjusted EBITDA	(8,961)	(15,320)	(34,030)	(20,336)
Corporate and other expenses | Corporate and other expenses
Segment Reporting Information [Line Items]
Total Other Segment Expenses	$ 8,961	$ 15,320	$ 34,030	$ 20,336