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Stockholders' Equity and Convertible Preferred Stock (Tables)
6 Months Ended
Jun. 30, 2021
Stockholders' Equity Note [Abstract]  
Schedule of warrant activity
   Warrants   Weighted Average Exercise Price   Total Intrinsic Value   Weighted Average Remaining Contractual Life
(in years)
 
Outstanding as of December 31, 2020   1,723,020   $3.07    57,333    1.11 
Issued   4,312,473    2.00    
-
    4.64 
Exercised   (80,000)   1.05    
-
    - 
Expired   (153,789)   19.67    
-
    - 
Forfeited   (3)   16.15    
-
    - 
Outstanding as of June 30, 2021   5,801,701   $1.86    63,333    4.37 

 

Schedule of option activity
   Number of Shares   Weighted Average Exercise Price   Total Intrinsic Value   Weighted Average Remaining Contractual Life
(in years)
 
Outstanding as of December 31, 2020   384,304   $40.15   $69,000    8.9 
Employee options granted   100,000    1.24    
-
    9.6 
Employee options expired   (4,650)   
-
    
-
    - 
Outstanding as of June 30, 2021   479,654   $32.35   $96,000    8.7 
Options vested and exercisable   429,654   $35.97   $96,000    8.6