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Temporary Equity and Stockholders' Deficit (Tables)
12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Summary of Outstanding Warrants

The following table summarizes information of outstanding warrants as of December 31, 2019:

 

    Warrants     Warrant Term   Exercise Price     Exercisable  
Class G Warrants     142,857     April 2020   $ 4.20       142,857  
Class H Warrants     50,000     January 2020 - March 2020   $ 2.10       50,000  
Class I Warrants     38,095     January 2020   $ 2.10       38,095  
Class J Warrants     3,649,318     July 2029   $ 0.48       3,649,318  
Class K Warrants     3,649,318     July 2029   $ 0.80       3,649,318