Quarterly report pursuant to Section 13 or 15(d)

Warrants and Derivative Liabilities (Detail Textuals 1)

v3.19.1
Warrants and Derivative Liabilities (Detail Textuals 1) - USD ($)
 1 Months Ended 3 Months Ended
Jan. 19, 2018
Dec. 28, 2017
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Class of Warrant or Right [Line Items]          
Less, noncurrent portion of derivative liabilities     $ 963,369   $ 219,453
Change in fair market value at the re-measurement date recorded as non-operating income     12,820,618 $ (977,493)  
Fair value of warrants issued in connection with financings     516,058 10,784,634  
Series B conversion liability          
Class of Warrant or Right [Line Items]          
Change in fair market value at the re-measurement date recorded as non-operating income       0  
Provision for conversion of Series B preferred stock       6,715  
Fair value of warrants issued in connection with financings       $ 0  
Emerald Convertible Promissory Note - conversion liability          
Class of Warrant or Right [Line Items]          
Change in fair value of warrant liability $ 360,000 $ 265,000      
Series B Warrants          
Class of Warrant or Right [Line Items]          
Warrant exercise price   $ 0.10      
Proceeds from financing between conversion liability and warrants     $ 5,000,000    
Series B Warrants | Bridge Loan | Secured promissory note and security agreement          
Class of Warrant or Right [Line Items]          
Initial conversion price $ 0.00        
2015 Common Stock Warrants          
Class of Warrant or Right [Line Items]          
Warrant exercise price     $ 1.15    
2015 Common Stock Warrants | Minimum          
Class of Warrant or Right [Line Items]          
Warrant exercise price     $ 1.15