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Note 13 - Other Financial Statement Information (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

March 31, 2024

 

December 31, 2023

Raw materials

  $ 279     $ 271  

Work in process

    14       9  

Total gross inventory

    293       280  

Reserve for excess and obsolete inventory

    (80 )     (76 )

Inventories, net

  $ 213     $ 204  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
   

March 31, 2024

 

December 31, 2023

Intellectual property

  $ 214     $ 214  

Gross intangible assets

    214       214  

Less: Accumulated amortization

    (162 )     (157 )

Intangible assets, net

  $ 52     $ 57