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Stockholders' Equity - Summary of Outstanding Warrants (Details) - Investors [Member] - $ / shares
3 Months Ended
Mar. 31, 2019
Dec. 31, 2019
Class F Warrant [Member]    
Warrants [1] 2,142,857  
Warrant Term [1] April 2019  
Warrant Exercise Price [1] $ 0.14  
Warrant Exercisable [1] 2,142,857  
Class G Warrant [Member]    
Warrants [1] 2,142,857  
Warrant Term [1] April 2019  
Warrant Exercise Price [1] $ 0.28  
Warrant Exercisable [1] 2,142,857  
Class H Warrant [Member]    
Warrants 750,000  
Warrant Term January 2020 -March 2020  
Warrant Exercise Price $ 0.14  
Warrant Exercisable 750,000  
Class I Warrant [Member]    
Warrants   571,429
Warrant Term January 2020  
Warrant Exercise Price   $ 0.14
Warrant Exercisable   571,429
[1] Subsequent to the balance sheet date, these warrants expired.