Debt and Warrants - Note Purchase Agreement (Details)	1 Months Ended	3 Months Ended	6 Months Ended
	Mar. 31, 2019	Jun. 30, 2019 USD ($) Y $ / shares shares	Jun. 30, 2019 USD ($) Y $ / shares shares	Dec. 31, 2018 USD ($)	Nov. 30, 2016 shares	Feb. 28, 2015 USD ($)
Convertible Promissory Notes and Common Stock Warrants [Line Items]
Notes payable						$ 150,000
Net cash proceeds			$ 5,050,000
Convertible debt, Gross				$ 11,294,770
Loss on extinguishment of debt		$ (2,663,198)	$ (4,605,158)
Term	4 months		5 years
Warrants to purchase (in shares) | shares		9,580	9,580		1,587
Exercise price (in dollars per share) | $ / shares		$ 49.00	$ 49.00
Strike price
Convertible Promissory Notes and Common Stock Warrants [Line Items]
Warrants - Measurement input | $ / shares		58.80	58.80
Expected life
Convertible Promissory Notes and Common Stock Warrants [Line Items]
Warrants - Measurement input | Y		5	5
Volatility
Convertible Promissory Notes and Common Stock Warrants [Line Items]
Warrants - Measurement input		132	132