XML 44 R23.htm IDEA: XBRL DOCUMENT v3.22.4
Note 4 - Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
  

Fair Value Measurements at

 
  

December 31, 2022

 
  

Total

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Money market funds

 

$

52,905

  

$

52,905

  

$

  

$

 

Liabilities

                

Warrant liability

 

$

26,881

  

$

  

$

  

$

26,881

 
  

Fair Value Measurements at

 
  

December 31, 2021

 
  

Total

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Money market funds

 $49,217  $49,217  $  $ 
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
  

October 2022 Warrants

 
  

December 31, 2022

 

Expected term (in years)

  1.9 

Expected volatility

  49.9%

Risk-free interest rate

  4.48%

Expected dividend yield

  0.00%

Fair value of common share

 $1.25 

Exercise price

 $0.7949 
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
  

January 2022 Warrants

  

October 2022 Warrants

 

Balance at January 1, 2022

 $  $ 

Issuance of warrants

  10,000    

Change in fair value

  (1,228)   

Balance at March 31, 2022

  8,772    

Issuance of warrants

     16,490 

Change in fair value

  (182)  10,391 

Reclass to additional paid-in-capital upon exercise

  (8,590)   

Balance at December 31, 2022

 $  $26,881