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Note 7 - Loan Payable (Tables)
9 Months Ended
Sep. 30, 2023
Notes Tables  
Schedule of Debt [Table Text Block]

 

September 30,

  

December 31,

 

(in thousands)

 

2023

  

2022

 

Loan payable

 $95,000  $70,000 

Add: Accreted Liability of final payment fee

  9,659   6,667 

  104,659   76,667 

Less: unamortized debt issuance costs

  (5,751)  (5,532)

  98,908   71,135 

Less: principal payments

      

Total loan payable

  98,908   71,135 

Less: current portion

      

Loan payable non-current

 $98,908  $71,135 
Warrant [Member]  
Notes Tables  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
  

Amended Term Loan

 

Exercise price

 $14.70 

Common share price on date of issuance

 $15.04 

Volatility

  0.88%

Risk-free interest rate

  3.6%

Expected dividend yield

  %

Contractual term (in years)

  7.00