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Note 5 - Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

September 30,
2024

   

December 31,
2023

 

Equipment

  $ 5,211     $ 5,167  

Leasehold improvements

    1,612       1,612  

Software

    364       364  

Furniture and fixtures

    22       22  

Total property and equipment–at cost

    7,209       7,165  

Less: Accumulated depreciation

    (6,716 )     (6,267 )

Property and equipment, net

  $ 493     $ 898