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

Level 1

  

Level 2

  

Level 3

  

Total

 

Assets

                

Money market accounts

 $16,042  $  $  $16,042 

Total Assets

 $16,042  $  $  $16,042 
  

Level 1

  

Level 2

  

Level 3

  

Total

 

Assets

                

Money market accounts

 $15,475  $  $  $15,475 

Total Assets

 $15,475  $  $  $15,475