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Note 9 - Inventories (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

March 31,

2022

  

December 31,

2021

 

Raw materials

 $11,179  $10,403 

Work in process

  1,562   1,250 

Inventory consigned to others

  44   44 

Finished goods

  2,128   1,166 

Total inventories

 $14,913  $12,863