Quarterly report pursuant to Section 13 or 15(d)

Warrants and Derivative Liabilities (Details)

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Warrants and Derivative Liabilities (Details)
 9 Months Ended
Sep. 30, 2018
USD ($)
$ / shares
Class of Warrant or Right [Line Items]  
Warrants amount issued and outstanding | $ $ 51,055,750
Pre 2015 Common Stock Warrants  
Class of Warrant or Right [Line Items]  
Warrant exercise price | $ / shares $ 1
Warrants amount issued and outstanding | $ $ 4,000,000
Pre 2015 Common Stock Warrants | Minimum  
Class of Warrant or Right [Line Items]  
Term of warrant 6 years
Pre 2015 Common Stock Warrants | Maximum  
Class of Warrant or Right [Line Items]  
Term of warrant 10 years
2015 Common Stock Warrants  
Class of Warrant or Right [Line Items]  
Warrants amount issued and outstanding | $ $ 442,000
2015 Common Stock Warrants | Minimum  
Class of Warrant or Right [Line Items]  
Warrant exercise price | $ / shares $ 1.15
Term of warrant 5 years
2015 Common Stock Warrants | Maximum  
Class of Warrant or Right [Line Items]  
Warrant exercise price | $ / shares $ 5.00
Term of warrant 10 years
2015 series B financing Common Stock Warrants to Series B Stockholders  
Class of Warrant or Right [Line Items]  
Warrant exercise price | $ / shares $ 0
Term of warrant 5 years
Warrants amount issued and outstanding | $ $ 1,456,250
2015 Series B financing Placement Agent Warrants  
Class of Warrant or Right [Line Items]  
Warrant exercise price | $ / shares $ 0
Term of warrant 5 years
Warrants amount issued and outstanding | $ $ 187,500
2016 Common Stock Warrants to Service Providers  
Class of Warrant or Right [Line Items]  
Warrant exercise price | $ / shares $ 1.15
Term of warrant 10 years
Warrants amount issued and outstanding | $ $ 40,000
2016 Series C Placement Agent Warrants  
Class of Warrant or Right [Line Items]  
Warrant exercise price | $ / shares $ 0.4
Term of warrant 5 years
Warrants amount issued and outstanding | $ $ 125,000
2017 Series D Placement Agent Warrants  
Class of Warrant or Right [Line Items]  
Warrant exercise price | $ / shares $ 0.25
Term of warrant 5 years
Warrants amount issued and outstanding | $ $ 480,000
2017 Common Stock Warrants to Service Provider  
Class of Warrant or Right [Line Items]  
Warrant exercise price | $ / shares $ 0.41
Term of warrant 5 years
Warrants amount issued and outstanding | $ $ 125,000
2018 Emerald Financing Warrants  
Class of Warrant or Right [Line Items]  
Warrant exercise price | $ / shares $ 0.1
Term of warrant 5 years
Warrants amount issued and outstanding | $ $ 44,200,000