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

June 30,

  

December 31,

 
  

2022

  

2021

 

Raw materials

 $23,251  $16,148 

Work-in-process

  10,494   13,639 

Finished goods

  3,315   6,575 
   37,060   36,362 

Less: Reserve for excess and obsolete inventory

  (2,131)  (2,985)

Net inventories

 $34,929  $33,377