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Note 6 - Fair Value (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
   

December 31, 2023

 

 

 

Quoted Prices
in Active

Markets for
Identical Assets
(Level 1)

   

Significant
Other
Observable
Inputs (Level 2)

   

Significant
Unobservable
Inputs (Level 3)

   

Total

 
Description         (in thousands)        

Assets measured at fair value

                               

Cash and cash equivalents (1)

  $ 17,096     $ -     $ -     $ 17,096  

Restricted cash

    1,642       -       -       1,642  

Short-term investments

    -       3,971       -       3,971  

Total assets measured at fair value

  $ 18,738     $ 3,971     $ -     $ 22,709  

Liabilities measured at fair value

                               

Contingent consideration

  $ -     $ -     $ 2,220     $ 2,220  
Warrant Liabilities     -       -       5,888       5,888  

Total liabilities measured at fair value

  $ -     $ -     $ 8,108     $ 8,108  
   

December 31, 2022

 

 

 

Quoted Prices in

Active Markets

for Identical

Assets (Level 1)

   

Significant

Other

Observable

Inputs (Level 2)

   

Significant Unobservable

Inputs (Level 3)

   

Total

 
Description         (in thousands)        

Assets measured at fair value

                               

Cash and cash equivalents (1)

  $ 6,329     $ -     $ -     $ 6,329  

Restricted cash

    1,141       -       -       1,141  

Short-term investments

    -       64,195       -       64,195  

Long-term investments

    -       3,865       -       3,865  

Total assets measured at fair value

  $ 7,470     $ 68,060     $ -     $ 75,530  

Liabilities measured at fair value

                               

Contingent consideration

  $ -     $ -     $ 1,256     $ 1,256  

Total liabilities measured at fair value

  $ -     $ -     $ 1,256     $ 1,256  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
 

Valuation
Methodology

 

 

Significant
Unobservable

Input

 

December 31,
2023

 

   

December 31,
2022

 

 
                       

Contingent consideration

Probability
weighted
income
approach

 

Milestone dates

 

2032

   

2032

 
     

Discount rate

    10.0 %     16.5 %
     

Revenue volatility

    35.0 %     45.0 %
     

EUR-to-USD exchange rate

    1.10       1.07  
   

As of December 31,

2023

 

Expected dividend yield

    0 %

Expected volatility

    117 %

Risk-free interest rate

    3.8 %

Expected life (in years)

    4.6  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

 

 

Fair Value

 
   

(in thousands)

 

Balance at December 31, 2021

  $ 2,371  

Change in fair value

    (1,115 )

Balance at December 31, 2022

  $ 1,256  

Change in fair value

    964  

Balance at December 31, 2023

  $ 2,220  
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]

 

 

Fair Value

 
    (in thousands)  

Balance at December 31, 2022

  $ -  

Issuance of warrants

    7,120  

Change in fair value

    (1,232 )

Balance at December 31, 2023

  $ 5,888