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Net Loss per Common Share (Tables)
6 Months Ended
Jun. 30, 2020
Net Loss per Share [Abstract]  
Schedule of Company's Potential Anti-dilutive Securities

The following potentially dilutive securities have not been included in the computation of diluted net loss per share for the three and six months ended June 30, 2019 and 2020, as the result would be anti-dilutive:

 

 

 

 

 

 

 

June 30, 

 

June 30, 

 

    

2019

    

2020

Stock options

 

117,113

 

134,594

Convertible preferred stock

 

85

 

85

Series A preferred stock

 

6,600

 

6,600

Common stock warrants

 

374,525

 

4,370,525

Total shares excluded from calculation

 

498,323

 

4,511,804