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Note 13 - Major Customers and Related Information (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Disaggregation of Revenue [Table Text Block]
  

For the Three Months

  

For the Six Months

 
  

Ended June 30,

  

Ended June 30,

 
  

2022

  

2021

  

2022

  

2021

 

Americas

 $1,090  $1,123  $2,285  $1,750 

Europe, Middle East and Africa

  73   803   247   1,679 

Asia Pacific

  2   8   232   47 
  $1,165  $1,934  $2,764  $3,476