Derivatives - Terms and Assumptions in Valuation of Convertible Option of Notes (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2020 USD ($) $ / shares	Dec. 31, 2019 USD ($) $ / shares	Oct. 31, 2019 $ / shares
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liability | $	$ 5,300,000
Series B Senior Unsecured Convertible Notes | Convertible Notes Payable
Derivative Instruments, Gain (Loss) [Line Items]
Term (years)	3 years 29 days	3 years 3 months 29 days
Face amount of the Notes | $	$ 34,405,000	$ 34,405,000
Conversion price | $ / shares	$ 0.72	$ 0.72	$ 0.72
Series B Senior Unsecured Convertible Notes | Convertible Notes Payable | Stock price
Derivative Instruments, Gain (Loss) [Line Items]
Measurement input | $ / shares	0.28	0.43
Series B Senior Unsecured Convertible Notes | Convertible Notes Payable | Risk free rate
Derivative Instruments, Gain (Loss) [Line Items]
Measurement input	0.003	0.016
Series B Senior Unsecured Convertible Notes | Convertible Notes Payable | Volatility
Derivative Instruments, Gain (Loss) [Line Items]
Measurement input	0.550	0.473