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Note 5 - Accounts Payable and Accrued Expenses (Tables)
9 Months Ended
Sep. 30, 2025
Notes Tables  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
  

As of September 30,

  

As of December 31,

 
  

2025

  

2024

 

Accounts payable

 $490  $155 

Accrued employee compensation

  153   18 

Accrued contracted services and other

  236   481 

Total accounts payable and accrued expenses

 $879  $654