Nature of Business and Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Revenue	$ 512	$ 316
AIEV
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Revenue	224
Robotics
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Revenue	288	0
Automotive sales | AIEV
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Revenue	208	0
Automotive leasing - Sales type | AIEV
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Revenue	0	265
Automotive leasing - Operating type | AIEV
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Revenue	$ 16	$ 51