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Note 17 - Geographic Information (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Revenue from External Customers by Geographic Areas [Table Text Block]
  

Three months ended September 30,

  

Nine months ended September 30,

 

 

2020

  

2019

  

2020

  

2019

 

Revenues:

 

  

  

  

 

United States

 $4,887  $2,898  $13,383  $6,547 

Taiwan

  45,821   28,390   105,196   74,519 

China

  25,900   14,796   63,719   61,148 

 $76,608  $46,084  $182,298  $142,214 
Long-lived Assets by Geographic Areas [Table Text Block]
  

As of the period ended

 

 

September 30,

  

December 31,

 

 

2020

  

2019

 

Long-lived assets:

 

  

 

United States

 $92,528  $94,507 

Taiwan

  70,512   73,816 

China

  104,259   97,687 

 $267,299  $266,010