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Note 4 - Inventory (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]

(In thousands)

 

September 30,

2020

   

December 31,

2019

 

Raw materials

  $ 2,731     $ 2,979  

Work in progress

    2,252       1,896  

Finished goods

    6,054       6,097  

Total

  $ 11,037     $ 10,972