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Note 4 - Segment Information (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
  

Year Ended December 31,

 
  

2023

  

2022

 

Domestic

 $11,380  $10,029 

International (1)

  23,471   20,168 

Total

 $34,851  $30,197 
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]
  

Year Ended December 31,

 
  

2023

  

2022

 

Customer A

  46%  46%

Customer B

  21%  17%
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
  

December 31,

  

December 31,

 
  

2023

  

2022

 

United States

 $1,535  $2,324 

Europe

  35   66 

Total

 $1,570  $2,390