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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Derivative [Line Items]
Cost and estimated earnings in excess of billings	$ 4,920		$ 6,489
Revenue recognized included in contract liabilities	1,353	$ 2,307
Revenue remaining performance obligation	$ 36,902
Accounts Payable \| Supplier Concentration Risk \| One Vendor
Derivative [Line Items]
Concentration risk, percentage		19.30%
One Customer \| Revenue Benchmark \| Customer Concentration Risk
Derivative [Line Items]
Concentration risk, percentage	36.00%
Four Customer \| Revenue Benchmark \| Customer Concentration Risk
Derivative [Line Items]
Concentration risk, percentage			63.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01
Derivative [Line Items]
Revenue remaining performance obligation	$ 26,052
Revenue remaining performance obligation period	12 months
Fuel Station Services
Derivative [Line Items]
Environmental credits held for sale	$ 2,210	$ 5,847