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Note 2 - Inventories (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

As of

 
   

December 31, 2022

   

December 31, 2021

 

Raw materials

  $ 2,971     $ 727  

Work-in-progress

    127       2,083  

Finished goods

    1,560       2,316  

Total inventories

  $ 4,658     $ 5,126