Annual report pursuant to Section 13 and 15(d)

Fair Value Measurement - Summary of Assumptions Used for Valuation of Fair Value Liabilities (Details)

v3.20.1
Fair Value Measurement - Summary of Assumptions Used for Valuation of Fair Value Liabilities (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Risk Free Interest Rate [Member] | Minimum [Member]    
Fair value assumptions, measurement input, percentages 1.47% 1.62%
Risk Free Interest Rate [Member] | Maximum [Member]    
Fair value assumptions, measurement input, percentages 2.45% 2.63%
Contractual Term (Years) [Member] | Minimum [Member]    
Fair value assumptions, measurement input, term 1 year 2 months 30 days
Contractual Term (Years) [Member] | Maximum [Member]    
Fair value assumptions, measurement input, term 10 years 3 years 2 months 30 days
Expected Volatility [Member] | Minimum [Member]    
Fair value assumptions, measurement input, percentages 74.00% 113.00%
Expected Volatility [Member] | Maximum [Member]    
Fair value assumptions, measurement input, percentages 140.00% 217.00%
Expected Dividend Yield [Member]    
Fair value assumptions, measurement input, percentages 0.00% 0.00%