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Note 7 - Inventories (Tables)
6 Months Ended
Jun. 30, 2023
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

June 30,

2023

  

December 31,

2022

 

Raw materials

 $16,834  $16,888 

Work in process

  2,343   2,432 

Inventory consigned to others

  76   59 

Finished goods

  3,817   3,186 

Total inventories

 $23,070  $22,565 
  

Three Months Ended
June 30,

  

Six Months Ended
June 30,

 
  

2023

  

2022

  

2023

  

2022

 
                 

Excess and obsolete inventory charges

 $131  $107  $266  $230