v3.26.1
Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenue      
Total revenue $ 18,252 $ 10,981 $ 30,058
Performance obligations satisfied in prior periods 0 0  
At One Point in Time      
Revenue      
Total revenue 14,706 10,976 30,058
Over Time      
Revenue      
Total revenue 3,546 5  
Semiconductors Segment      
Revenue      
Total revenue 14,651 10,981 30,058
Semiconductors Segment | Secure Chips      
Revenue      
Total revenue 14,329 10,937 30,044
Semiconductors Segment | Certificates      
Revenue      
Total revenue 322 44 14
Semiconductors Segment | At One Point in Time      
Revenue      
Total revenue 14,627 10,976 30,058
Semiconductors Segment | At One Point in Time | Secure Chips      
Revenue      
Total revenue 14,329 10,937 30,044
Semiconductors Segment | At One Point in Time | Certificates      
Revenue      
Total revenue 298 39 $ 14
Semiconductors Segment | Over Time      
Revenue      
Total revenue 24 5  
Semiconductors Segment | Over Time | Certificates      
Revenue      
Total revenue 24 $ 5  
ASIC Segment      
Revenue      
Total revenue 3,601    
ASIC Segment | ASIC Design      
Revenue      
Total revenue 3,522    
ASIC Segment | ASIC Production      
Revenue      
Total revenue 79    
ASIC Segment | At One Point in Time      
Revenue      
Total revenue 79    
ASIC Segment | At One Point in Time | ASIC Production      
Revenue      
Total revenue 79    
ASIC Segment | Over Time      
Revenue      
Total revenue 3,522    
ASIC Segment | Over Time | ASIC Design      
Revenue      
Total revenue $ 3,522