Annual report [Section 13 and 15(d), not S-K Item 405]

Basis of Presentation and Summary of Significant Accounting Policies - Professional Engineering Contracts (Details)

v3.25.1
Basis of Presentation and Summary of Significant Accounting Policies - Professional Engineering Contracts (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Professional Engineering Services Contracts    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Revenue $ 1 $ (1,477)
Basic net loss per share (in usd per share) $ 0.00 $ (0.09)
Diluted net loss per share (in usd per share) $ 0.00 $ (0.09)
Individual Professional Services Contract    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Revenue $ 1,100