Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation (Tables)

v3.21.2
Stock-based Compensation (Tables)
 6 Months Ended
Jun. 30, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of summarizes activity for stock options under both plans
                Weighted-        
    Number of           Average        
    Shares     Weighted-     Remaining     Aggregate  
    Underlying     Average     Contractual     Intrinsic  
    Outstanding     Exercise     Term     Value  
    Options     Price     (in Years)     (in thousands)  
Outstanding, December 31, 2020     786,047       1.42       8.28       2,201  
Options granted     132,093       7.01                  
Options exercised     (257,219 )     0.12                  
Outstanding, June 30, 2021     660,921       3.03       7.61       2,631  
                                 
Shares vested and exercisable as of June 30, 2021     215,599     $ 2.94       8.19     $ 877  

 
Schedule of Company has recorded stock-based compensation expense, allocated by functional
    Three Months Ended     Six Months Ended  
    June 30,     June 30,  
    2020     2021     2020     2021  
                         
Research and development   $ 43     $ 271     $ 60     $ 456  
General and administrative     17       23       31       40  
Total stock-based compensation   $ 60     $ 294     $ 91     $ 496  

 
Schedule of fair value of awards granted to employees, directors and non-employees
    Six Months Ended  
    June 30,  
    2020     2021  
Expected volatility             114.00 %     104.00 – 105.00 %
Risk-free interest rate             0.44 - 0.51 %     0.92 %
Dividend yield             - %     - %
Expected term             6.25 years       5.13 – 6.25 years