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Note 3 - Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2024
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
   

As of December 31, 2024

 
                                 
   

Level 1

   

Level 2

   

Level 3

   

Total

 

Assets:

                               

Money market funds

  $ 2     $     $     $ 2  

Cash in savings account

                      2,058  

Cash in checking account

                      311  

Total cash and cash equivalent

  $ 2     $     $     $ 2,371  
   

As of December 31, 2023

 
   

Level 1

   

Level 2

   

Level 3

   

Total

 

Assets:

                               

Money market funds

  $ 2     $     $     $ 2  

Cash in savings account

                      1,072  

Cash in checking account

                      29  

Total cash and cash equivalent

  $ 2     $     $     $ 1,103