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Stockholders' Equity - Schedule of Estimated Fair Value Determined Using Option Pricing Model Assumptions (Details)
Mar. 31, 2019
$ / shares
Dec. 31, 2018
$ / shares
Expected Term [Member]    
Class Of Stock [Line Items]    
Warrants expected term 1 year 9 months 18 days 2 years 1 month 6 days
Common Stock Market Price [Member]    
Class Of Stock [Line Items]    
Warrants measurement input 0.26 0.29
Risk-free Interest Rate [Member]    
Class Of Stock [Line Items]    
Warrants measurement input 0.0238 0.0248
Expected Volatility [Member]    
Class Of Stock [Line Items]    
Warrants measurement input 1.28 1.25
Resulting Fair Value (Per Warrant) [Member]    
Class Of Stock [Line Items]    
Warrants measurement input 0.10 0.13