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Note 5 - Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

December 31,

 
  

2021

  

2020

 

Raw materials

 $16,881  $14,852 

Work-in-process

  11,442   12,811 

Finished goods

  26,731   33,347 

Total

 $55,054  $61,010 
         

Inventories

 $36,010  $46,209 

Other long-term assets

  19,044   14,801 
Total $55,054   61,010