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Note 4 - Inventories (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

September 30,

  

December 31,

 
  

2022

  

2021

 

Raw materials

 $21,512  $16,148 

Work-in-process

  10,634   13,639 

Finished goods

  4,252   6,575 
   36,398   36,362 

Less: Reserve for excess and obsolete inventory

  (2,496)  (2,985)

Net inventories

 $33,902  $33,377