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Note 7 - Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]
   

September 30, 2024

 

(In thousands)

 

Level 1

   

Level 2

   

Level 3

   

Total Fair Value

 

Cash equivalents

                               

Money market accounts

  $ 16,805     $     $     $ 16,805  

Marketable securities

                               

Corporate, municipal debt and treasury securities

    5,511                   5,511  

Total assets

  $ 22,316     $     $     $ 22,316