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Note 7 - Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]
   

March 31, 2025

 

(In thousands)

 

Level 1

   

Level 2

   

Level 3

   

Total Fair Value

 

Cash equivalents

                               

Money market accounts

  $ 16,349     $     $     $ 16,349  

Marketable securities

                               

Corporate and municipal debt securities

    5,575                   5,575  

Total assets

  $ 21,924     $     $     $ 21,924