REVENUE RECOGNITION - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	$ 35,616	$ 15,092	$ 15,357
Revenue, remaining performance obligation, amount	14,267
Contract liabilities	16,254	12,761
Contract liabilities, revenue recognized	6,404	895	955
Cost of revenues	9,901	4,519	2,025
Contract liabilities, customer deposits, current	1,000	0
Contract liabilities, customer deposits, non current	$ 4,260	1,285
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 6,091
Revenue, remaining performance obligation, expected timing of satisfaction, period	12 months
Pre Certified Air Craft Agreement Contracts
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	$ 0	0	0
Cost of revenues	0	0	0
United States
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	33,864	15,092	15,357
International
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	$ 1,752	$ 0	$ 0