Quarterly report [Sections 13 or 15(d)]

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

v3.25.3
Basis of Presentation and Summary of Significant Accounting Policies - Professional Engineering Contracts (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Revenue   $ 1,200    
Professional Engineering Services Contracts        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Revenue $ 758 $ (785) $ (471) $ 218
Basic net loss per share (in usd per share) $ 0.02 $ (0.04) $ (0.01) $ 0.01
Diluted net loss per share (in usd per share) $ 0.02 $ (0.04) $ (0.01) $ 0.01