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Common Stock and Warrants (Tables)
3 Months Ended
Mar. 31, 2018
Common Stock And Warrants Tables  
Summary of warrants outstanding
   

Shares of Common Stock Issuable

from Warrants Outstanding as of

    Weighted        
    March 31,     December 31,     Average Exercise        
Description   2018     2017     Price   Expiration  
Series A     240,000       720,000     $ 0.35     July 12, 2019  
Series D     810,000       910,000     $ 1.10     June 5, 2020  
Series E     584,416       584,416     $ 1.54     September 8, 2021  
Series F     7,246       14,492     $ 3.45    

February 23, 2022 &

March 9, 2022

 
Series G     460,250       460,250     $ 2.68     July 21, 2022  
Series H     910,000       920,000     $ 2.75     October 16, 2022  
Total     3,011,912       3,609,158