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Note 4 - Prepaid Expenses and Other Current Assets (Tables)
3 Months Ended
Mar. 31, 2026
Notes Tables  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
   

March 31,

   

December 31,

 
   

2026

   

2025

 

Prepaid insurance

  $ 338     $ 299  

Deferred financing costs

    146       241  

Other

    164       177  

Total prepaid expenses and other current assets

  $ 648     $ 717