REVENUE RECOGNITION - Disaggregated Revenue (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Total		$ 8,918	$ 3,066	$ 24,483	$ 10,655
Product revenue
Disaggregation of Revenue [Line Items]
Total	[1]	2,917	799	7,993	1,395
Service revenue
Disaggregation of Revenue [Line Items]
Total	[1]	6,001	2,267	16,490	9,260
U.S. Government
Disaggregation of Revenue [Line Items]
Total		2,702	892	7,674	5,271
Commercial customers
Disaggregation of Revenue [Line Items]
Total		$ 6,216	$ 2,174	$ 16,809	$ 5,384

[1] Includes related party amounts of $0 and $535 (product revenue) and $1,454 and $1,260 (service revenue) for the three months ended September 30, 2025 and 2024, respectively. Includes related party amounts of $0 and $1,059 (product revenue) and $5,064 and $3,805 (service revenue) for the nine months ended September 30, 2025 and 2024, respectively (see Note 14)