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Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2020
Stockholders' Equity  
Schedule of common stock reserved for future issuance

 

 

 

 

 

 

 

 

December 31, 

 

December 31, 

 

    

2020

    

2019

Warrants for the purchase of common stock

 

6,193,749

 

6,193,749

Options outstanding to purchase common stock

 

1,367,667

 

785,832

Options available for future issuance to purchase common stock

 

1,936,173

 

525,484

Shares reserved for the employee stock purchase plan

 

148,951

 

112,481

Total

 

9,646,540

 

7,617,546