v3.26.1
Note 14 - Segment Information and Foreign Operations (Tables)
12 Months Ended
Dec. 31, 2025
Notes Tables  
Revenue from External Customers by Products and Services [Table Text Block]
  

December 31,

 
  

2025

  

2024

  

2023

 

Product Type:

         

Substrates

 $58,900  $67,748  $47,466 

Raw materials and others

  29,426   31,613   28,329 

Total

 $88,326  $99,361  $75,795 
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
  

Year Ended

 
  

December 31,

 
  

2025

  

2024

  

2023

 

Geographical region:

         

China

 $55,076  $56,119  $39,778 

Taiwan

  13,039   14,098   8,651 

Japan

  4,906   4,979   4,641 

Asia Pacific (excluding China, Taiwan and Japan)

  2,441   2,818   3,814 

Europe (primarily Germany)

  11,156   13,766   12,315 

North America (primarily the United States)

  1,708   7,581   6,596 

Total

 $88,326  $99,361  $75,795 
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]
  

As of December 31,

 
  

2025

  

2024

 

Long-lived assets by geographic region, net of depreciation:

      

North America

 $1,040  $1,353 

China

  162,802   160,847 
  $163,842  $162,200