Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.21.2
Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2021
Stockholders' Equity Note [Abstract]  
Schedule of warrants to purchase common stock activity
    Shares
Underlying
Warrants
    Weighted
Average
Exercise
Price
    Weighted
Average
Remaining
Contractual
Life (years)
    Aggregate
Intrinsic
Value
 
Outstanding and exercisable at December 31, 2020     17,058,051     $ 1.86       5.78     $
    -
 
Granted     6,530,969       2.07                  
Exercised     (14,267,250 )     1.24               -  
Outstanding at September 30, 2021     9,321,770     $ 3.00       3.32     $
-
 

 

Schedule of stock option activity
    Shares
Underlying
Options
    Weighted
Average
Exercise
Price
    Weighted
Average
Remaining
Contractual
Life (years)
    Aggregate
Intrinsic
Value
 
Outstanding at December 31, 2020     5,029,119     $ 3.00       7.96     $
     -
 
Granted     1,206,500       1.71                  
Forfeited     (163,640 )     3.52                  
Outstanding at September 30, 2021     6,071,979     $ 2.73       7.66     $
-
 

 

Schedule of option pricing model using weighted average assumptions
    Nine months Ended
September 30,
 
    2021     2020  
Expected term, in years     5.7       5.7  
Expected volatility     106.64 %     82.04 %
Risk-free interest rate     0.73 %     1.00 %
Dividend yield    
-
     
-
 
Grant date fair value   $ 1.71     $ 1.17  

 

Schedule of restricted stock unit awards activity
    Number
of Shares
    Weighted
Average
Grant Date
Fair Value
 
Nonvested at December 31, 2020     337,927     $ 3.10  
Granted     426,000       1.71  
Vested     (208,329 )     2.35  
Nonvested at September 30, 2021     555,598     $ 2.29  

 

Schedule of stock-based compensation
    Three Months ended
September 30,
    Nine months ended
September 30,
 
    2021     2020     2021     2020  
Research and development   $ 145     $ 122     $ 448     $ 459  
Sales and marketing     71       78       293       250  
General and administrative     632       585       2,036       1,533  
Total   $ 848     $ 785     $ 2,777     $ 2,242