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Note 3 - Inventories (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

June 30, 2021

  

December 31, 2020

 

Raw materials

 $5,888  $2,053 

Finished goods

  5,849   5,994 
   11,737   8,047 

Reserve for obsolete inventory

  (1,271)  (1,746)
         

Inventories, net

 $10,466  $6,301