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Note 5 - Inventory (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

March 31,

  

December 31,

 
  

2024

  

2023

 

Raw materials and supplies

 $160  $1,027 

Finished goods

  732   2,477 

Less: Reserve for excess and obsolete inventory

  (229)  (627)

Inventory, net of reserves, from discontinued operations

     (2,313)

Total inventory, net

 $663  $564