v3.26.1
Segment, Product and Geographic Information - Carrying values of the Company's tangible long-lived assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Segment, Product and Geographic Information    
Property, plant and equipment $ 120,031 $ 121,280
Taiwan    
Segment, Product and Geographic Information    
Property, plant and equipment 116,829 117,784
U.S.    
Segment, Product and Geographic Information    
Property, plant and equipment 1,299 1,433
China    
Segment, Product and Geographic Information    
Property, plant and equipment 1,392 1,688
Korea    
Segment, Product and Geographic Information    
Property, plant and equipment 476 286
Japan    
Segment, Product and Geographic Information    
Property, plant and equipment $ 35 $ 89