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Note 15 - Related Party Transactions (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Schedule of Related Party Transactions [Table Text Block]
  

Three Months Ended September 30,

  

Nine Months Ended September 30,

 

(in thousands)

 

2024

  

2023

  

2024

  

2023

 

Product revenue from related parties

 $64  $64  $171  $320 

Royalty revenue from related parties

  22   43   78   129 

Total revenue from related parties

 $86  $107  $249  $449