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

Warrants and Derivative Liabilities (Details 2)

v3.20.2
Warrants and Derivative Liabilities (Details 2) - Emerald Multi-Draw Credit Agreement Warrants
Mar. 31, 2020
Percent
$ / shares
Dec. 31, 2019
$ / shares
Nov. 01, 2018
$ / shares
Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Underlying common stock price     $ 0.36
Monte Carlo simulations      
Class of Warrant or Right [Line Items]      
Underlying common stock price $ 0.08    
Minimum | Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Underlying common stock price 0.33 $ 0.33  
Maximum | Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Underlying common stock price $ 0.69 $ 0.69  
Dividend yield | Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input (in percent) 0 0.0000 0
Dividend yield | Monte Carlo simulations      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input (in percent) | Percent 18.46    
Volatility factor | Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input (in percent)     92.5
Volatility factor | Monte Carlo simulations      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input (in percent) | Percent 79.8    
Volatility factor | Minimum | Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input (in percent) 91.6 91.6  
Volatility factor | Maximum | Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input (in percent) 92.1 0.921  
Risk-free interest rate | Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input (in percent)     2.96
Risk-free interest rate | Minimum | Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input (in percent) 2.23 0.0223  
Risk-free interest rate | Maximum | Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input (in percent) 2.51 0.0251  
Expected term (years) | Black-Scholes option pricing model      
Class of Warrant or Right [Line Items]      
Expected Term (years) 5 years 5 years 5 years
Expected term (years) | Monte Carlo simulations      
Class of Warrant or Right [Line Items]      
Expected Term (years) 2 years 6 months 18 days