General form of registration statement for all companies including face-amount certificate companies

Warrants and Derivative Liabilities (Details 3)

v3.19.3
Warrants and Derivative Liabilities (Details 3) - Monte Carlo simulations - Emerald Financing Warrant Liability
Jun. 30, 2019
$ / shares
Dec. 31, 2018
USD_per_warrants
$ / shares
Feb. 16, 2018
USD_per_warrants
$ / shares
Jan. 19, 2018
USD_per_warrants
$ / shares
Class of Warrant or Right [Line Items]        
Underlying common stock price | $ / shares $ 0.29 $ 0.40    
Minimum        
Class of Warrant or Right [Line Items]        
Underlying common stock price | $ / shares     $ 0.29 $ 0.29
Maximum        
Class of Warrant or Right [Line Items]        
Underlying common stock price | $ / shares     $ 0.30 $ 0.30
Dividend yield        
Class of Warrant or Right [Line Items]        
Warrants and rights outstanding measurement input 0.00 0.00 0.00 0.00
Volatility factor        
Class of Warrant or Right [Line Items]        
Warrants and rights outstanding measurement input | USD_per_warrants     70.00 70.00
Volatility factor | Minimum        
Class of Warrant or Right [Line Items]        
Warrants and rights outstanding measurement input 90.4 92.1    
Volatility factor | Maximum        
Class of Warrant or Right [Line Items]        
Warrants and rights outstanding measurement input 90.8 92.4    
Risk-free interest rate        
Class of Warrant or Right [Line Items]        
Warrants and rights outstanding measurement input 1.70 2.49    
Risk-free interest rate | Minimum        
Class of Warrant or Right [Line Items]        
Warrants and rights outstanding measurement input | USD_per_warrants     2.45 2.45
Risk-free interest rate | Maximum        
Class of Warrant or Right [Line Items]        
Warrants and rights outstanding measurement input | USD_per_warrants     2.6 2.6
Expected term (years)        
Class of Warrant or Right [Line Items]        
Expected Term     5 years 5 years
Expected term (years) | Minimum        
Class of Warrant or Right [Line Items]        
Expected Term 3 years 6 months 22 days 4 years 18 days    
Expected term (years) | Maximum        
Class of Warrant or Right [Line Items]        
Expected Term 3 years 7 months 21 days 4 years 1 month 17 days