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Note 8 - Segment, Significant Customers and Geographic Information (Tables)
6 Months Ended
Jun. 30, 2024
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
  

Three Months Ended June 30,

  

Six Months Ended June 30,

 

Customer

 

2024

  

2023

  

2024

  

2023

 

Distributor A

  38%  22%  40%  21%

Distributor B

  17%  20%  15%  21%

Distributor C

  *   11%  *   10%
  

June 30,

  

December 31,

 

Customer

 

2024

  

2023

 

Distributor A

  41%  42%

Distributor B

  24%  13%

Distributor C

  *   10%
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
  

Three Months Ended June 30,

  

Six Months Ended June 30,

 

Country or Region

 

2024

  

2023

  

2024

  

2023

 

China

 $282,514  $216,172  $545,554  $441,224 

Taiwan

  127,396   70,212   227,846   119,045 

South Korea

  39,513   40,669   75,050   86,349 

Europe

  19,105   36,348   36,847   79,451 

United States

  13,927   27,571   28,747   58,588 

Southeast Asia

  11,352   21,708   24,591   48,140 

Japan

  13,552   28,288   26,500   59,103 

Other

  72   160   181   293 

Total

 $507,431  $441,128  $965,316  $892,193 
Revenue from External Customers by Products and Services [Table Text Block]
  

Three Months Ended June 30,

  

Six Months Ended June 30,

 

Product Family

 

2024

  

2023

  

2024

  

2023

 

Direct Current (“DC”) to DC

 $501,302  $418,175  $947,367  $843,356 

Lighting Control

  6,129   22,953   17,949   48,837 

Total

 $507,431  $441,128  $965,316  $892,193 

 

The following is a summary of long-lived assets by geographic region (in thousands):

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]
  

June 30,

  

December 31,

 

Country

 

2024

  

2023

 

China

 $207,614  $184,685 

United States

  124,000   119,430 

Taiwan

  37,071   39,419 

Other

  31,849   25,418 

Total

 $400,534  $368,952