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Note 9 - Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

2021

  

2020

 

Raw materials

 $10,403  $5,371 

Work in process

  1,250   1,085 

Inventory consigned to others

  44   45 

Finished goods

  1,166   975 

Total inventories

 $12,863  $7,476