v3.26.1
Convertible Debts - Series D Convertible Note (Details) - Forge Nano, Inc. - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Convertible Debts        
Carrying amount $ 10,488   $ 10,488  
Interest expense $ 262 $ 534 1,792 $ 2,034
Derivative liability - conversion feature embedded in convertible debt       $ 393
Series D Convertible Note        
Convertible Debts        
Interest rate       6.00%
Carrying amount     0 $ 1,924
Interest expense     0 17
Derivative liability - conversion feature embedded in convertible debt     393  
Threshold qualified financing amount triggering conversion of debt     $ 40,000  
Stock price trigger     80.00%  
Threshold valuation cap     $ 750,000  
Threshold valuation cap in the event of liquidation     750,000  
Threshold post-money valuation cap in the event of maturity     $ (300,000)  
Series D Convertible Note | Maximum        
Convertible Debts        
Principal amount       $ 40,000