Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Summary of Weighted Average Unobservable Inputs (Details)

Fair Value Measurements - Summary of Weighted Average Unobservable Inputs (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Warrant Derivative Liability [Member] \| Measurement Input, Strike Price [Member]
Derivative liability, measurement input	7.80	5.93
Warrant Derivative Liability [Member] \| Measurement Input, Expected Term [Member]
Derivative liability, measurement input, term	2 years 8 months 12 days	3 years 2 months 12 days
Warrant Derivative Liability [Member] \| Measurement Input, Price Volatility [Member]
Derivative liability, measurement input	91.2	135.5
Warrant Derivative Liability [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Derivative liability, measurement input	2.24	1.98
Warrant Derivative Liability [Member] \| Measurement Input, Expected Dividend Rate [Member]
Derivative liability, measurement input	0.00	0.00
Embedded Conversion Feature [Member] \| Measurement Input, Strike Price [Member]
Derivative liability, measurement input	2.61	3.47
Embedded Conversion Feature [Member] \| Measurement Input, Expected Term [Member]
Derivative liability, measurement input, term	7 months 6 days	9 months 18 days
Embedded Conversion Feature [Member] \| Measurement Input, Price Volatility [Member]
Derivative liability, measurement input	91.2	135.5
Embedded Conversion Feature [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Derivative liability, measurement input	2.36	1.55
Embedded Conversion Feature [Member] \| Measurement Input, Expected Dividend Rate [Member]
Derivative liability, measurement input	0.00	0.00