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Note 15 - Segment and Geographic Information (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
  

Year Ended December 31,

 

Country or Region

 

2023

  

2022

  

2021

 

China

 $934,768  $938,946  $700,985 

Taiwan

  307,499   233,040   169,130 

South Korea

  169,867   189,478   93,027 

Europe

  132,620   145,584   85,201 

United States

  97,294   99,804   35,770 

Japan

  93,340   91,048   68,720 

Southeast Asia

  85,150   95,739   54,611 

Other

  534   509   354 

Total

 $1,821,072  $1,794,148  $1,207,798 
Revenue from External Customers by Products and Services [Table Text Block]
  

Year Ended December 31,

 

Product Family

 

2023

  

2022

  

2021

 

DC to DC

 $1,718,623  $1,696,594  $1,147,329 

Lighting Control

  102,449   97,554   60,469 

Total

 $1,821,072  $1,794,148  $1,207,798 
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]
  

December 31,

 

Country

 

2023

  

2022

  

2021

 

China

 $184,685  $200,508  $211,973 

United States

  119,430   113,996   113,805 

Taiwan

  39,419   20,074   19,607 

Other

  25,418   22,579   17,577 

Total

 $368,952  $357,157  $362,962