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Summary of Significant Accounting Policies (Tables)
 6 Months Ended
Jun. 30, 2020
Summary of Significant Accounting Policies [Abstract]  
Antidilutive Securities
The potentially dilutive securities excluded from the determination of diluted loss per share as their effect is antidilutive, are as follows:

 
 
As of June 30,
 
 
 
2020
  
2019
 
Stock options to purchase Common Stock
  
1,639,753
   
1,418,301
 
Warrants to purchase Common Stock
  
197,518
   
262,758
 
Total
  
1,837,271
   
1,681,059
 
Calculation of Basic and Diluted Net Income (Loss) per Share Attributable to Common Stockholders
The following is a reconciliation of the numerator (net income or loss) and the denominator (number of shares) used in the calculation of basic and diluted net income (loss) per share attributable to common stockholders:

 
 
Three Months Ended June 30,
  
Six Months Ended June 30,
 
 
 
2020
  
2019
  
2020
  
2019
 
Numerator
            
Basic and diluted net (loss) income
 
$
(2,929,344
)
 
$
(3,885,852
)
 
$
(6,914,752
)
 
$
2,930,847
 
                 
Denominator
                
Shares used in computing basic net (loss) income per share
  
15,357,199
   
5,175,837
   
12,835,980
   
4,466,025
 
Shares from dilutive securities
  
–
   
–
   
–
   
1,211,335
 
Shares used in computing diluted net (loss) income per share
  
15,357,199
   
5,175,837
   
12,835,980
   
5,677,360
 
                 
Net (loss) income per share, basic
 
$
(0.19
)
 
$
(0.75
)
 
$
(0.54
)
 
$
0.66
 
Net (loss) income per share, diluted
 
$
(0.19
)
 
$
(0.75
)
 
$
(0.54
)
 
$
0.52