Fair Value Measurement - Summary of Assumptions Used for Valuation of Fair Value Liabilities (Details) |
12 Months Ended | |
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Dec. 31, 2018 |
Dec. 31, 2017 |
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Risk Free Interest Rate [Member] | Minimum [Member] | ||
Fair value assumptions, measurement input, percentages | 1.62% | 1.47% |
Risk Free Interest Rate [Member] | Maximum [Member] | ||
Fair value assumptions, measurement input, percentages | 2.63% | 1.98% |
Contractual Term (Years) [Member] | Minimum [Member] | ||
Fair value assumptions, measurement input, term | 2 months 30 days | 9 months 11 days |
Contractual Term (Years) [Member] | Maximum [Member] | ||
Fair value assumptions, measurement input, term | 3 years 2 months 30 days | 4 years |
Expected Volatility [Member] | Minimum [Member] | ||
Fair value assumptions, measurement input, percentages | 113.00% | 112.00% |
Expected Volatility [Member] | Maximum [Member] | ||
Fair value assumptions, measurement input, percentages | 217.00% | 149.00% |
Expected Dividend Yield [Member] | ||
Fair value assumptions, measurement input, percentages | 0.00% | 0.00% |
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- Definition Fair value assumptions, measurement input, term. No definition available.
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