v3.26.1
Significant Accounting Policies - Product Warranties and Stock Options (Details) - Forge Nano, Inc.
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
Options
Dec. 31, 2025
USD ($)
Options
Dec. 31, 2024
USD ($)
Significant Accounting Policies      
Warranty term 1 year 1 year  
Warranty expense   $ 52 $ 74
Warranty obligations as percentage of revenue recognized 10.00% 10.00%  
Warranty liability $ 33 $ 63 $ 152
Number of stock option plan | Options 1 1