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Note 4 - Prepaid Expenses and Other Current Assets (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
   

March 31,

   

December 31,

 
   

2025

   

2024

 

Vendor and other receivables

  $ 223     $ 76  

Avenova Asset Divestiture Escrow

    134        

Dues & subscriptions

    89       67  

Prepaid taxes & licenses

    73       65  

Prepaid insurance

    42       48  

Other

    10       16  

Total prepaid expenses and other current assets

  $ 571     $ 272