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Note 4 - Inventory (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]

(In thousands)

 

2021

   

2020

 

Raw materials

  $ 3,081     $ 2,855  

Work in progress

    1,173       2,006  

Finished goods

    7,412       6,741  

Total

  $ 11,666     $ 11,602