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Note 10 - Income Taxes (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
   

Three Months Ended September 30,

   

Nine Months Ended September 30,

 

(in thousands)

 

2024

   

2023

   

2024

   

2023

 

United States

  $ (7,940 )   $ (2,206 )   $ (25,720 )   $ (38,608 )

Foreign

    (46 )     (212 )     (131 )     (723 )

Net loss before income taxes

  $ (7,986 )   $ (2,418 )   $ (25,851 )   $ (39,331 )