v3.26.1
Income Taxes - Reconciliation of the federal statutory income tax rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Jul. 04, 2025
Dec. 31, 2025
Dec. 31, 2024
Federal income tax expense (benefit) attributable to:      
Tax Jurisdiction of Domicile [Extensible Enumeration]   UNITED STATES UNITED STATES
Forge Nano, Inc.      
Federal income tax expense (benefit) attributable to:      
Current operations   $ (9,067) $ (5,667)
State tax effect - Net of federal benefit   (639) (230)
Permanent differences   1,640 247
Other adjustments   6 17
Valuation allowance   $ 8,060 $ 5,633
Percent      
Current operations 21.00% 22.00% 21.00%
State tax effect - Net of federal benefit   1.50% 0.86%
Permanent differences   (3.47%) (0.92%)
Other adjustments   0.00% (0.06%)
Valuation allowance   (19.02%) (20.88%)
Net provision for federal income tax   0.00% 0.00%