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Net Loss per Share Attributable to Common Stockholders
9 Months Ended
Sep. 30, 2021
Net Loss per Share Attributable to Common Stockholders [Abstract]  
Net Loss per Share Attributable to Common Stockholders
(13)
Net Loss per Share Attributable to Common Stockholders
 
The following table sets forth the computation of the basic and diluted net loss per share:

 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
 
2021
 
2020
 
2021
 
2020
 

               
Net loss attributable to common stockholders, basic & diluted
 
$
(2,259,701
)
   
(1,568,295
)
   
(5,172,992
)
   
(5,255,473
)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic & diluted
   
11,799,720
     
955,649
     
4,996,680
     
955,402
 
Net loss per share attributable to common stockholders, basic & diluted
 
$
(0.19
)
   
(1.64
)
   
(1.04
)
   
(5.50
)

The following potentially dilutive securities have been excluded from the computations of diluted weighted average shares outstanding because they would be anti-dilutive:

   
Three Months Ended September 30,
   
Nine Months Ended September 30,
 

 
2021
   
2020
   
2021
   
2020
 
Convertible preferred stock outstanding
   
     
8,116,343
     
     
8,116,343
 
Options to purchase common stock
   
696,163
     
780,862
     
696,163
     
780,862
 
Warrants to purchase common stock
   
244,572
     
244,572
     
244,572
     
244,572
 
Total potential shares
   
940,735
     
9,141,777
     
940,735
     
9,141,777