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Note 7 - Inventories, Net (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

March 31,

  

December 31,

 
  

2021

  

2020

 

Finished goods

 $1,172  $1,236 

Work in process

  348   357 

Raw materials and accessories

  369   370 

Supplies and packing materials

  472   475 

Total inventories, net

 $2,361  $2,438