v3.25.2
Segment Reporting (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Allocated employee compensation and stock-based compensation $ 0.7 $ 0.4 $ 2.0 $ 0.8
CODM        
Revenue 0.0 0.0 0.0 0.0
General and administrative 2.5 1.8 6.0 4.0
INL Project 0.8 0.3 1.6 0.7
Romania feasibility study 0.0 0.1 0.0 0.1
Centrus Energy FEED study 0.0 0.0 0.0 0.2
Allocated employee compensation and stock-based compensation 0.6 0.5 1.4 0.7
Other outside R&D expenses 0.2 0.0 0.3 0.2
Total research and development 1.6 0.9 3.3 1.9
Other segments item (1) (0.6) (0.3) (1.0) (0.7)
Net loss $ (3.5) $ (2.4) $ (8.3) $ (5.2)