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Note 6 - Accrued Liabilities (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
   

September 30,

   

December 31,

 

(in thousands)

 

2024

   

2023

 

Accrued compensation and benefits

  $ 3,691     $ 2,120  

Deferred grants

    2,060       438  

Accrued CRO and clinical fees

    804       481  

Other

    178       681  

Total accrued liabilities

  $ 6,733     $ 3,720