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Capitalization (Tables)
3 Months Ended
Mar. 31, 2019
Stockholders' Equity Note [Abstract]  
Summary of the Company's outstanding warrants
The following is a summary of the Company’s outstanding warrants as of March 31, 2019 and December 31, 2018:
 
 
Warrant
shares
 
Exercise
price
 
Expiration
Common stock
 
7,030


$
128.00


September 2019
Common stock
 
130


$
2,520.00


August 2019