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Loss Per Share of Common Stock (Tables)
3 Months Ended
Mar. 31, 2021
Loss Per Share of Common Stock  
Schedule of antidilutive securities excluded from the computation of diluted weighted average shares outstanding

March 31,

2021

2020

Convertible preferred stock

    

950,600

    

6,000,000

    

Restricted stock

 

22,000

 

5,250

 

Stock options

 

4,436,778

 

3,264,041

 

 

5,409,378

 

9,269,291