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Debt Obligations - Schedule of Certain Estimates and Assumptions of Fair Value of Secured Convertible Notes (Details) - $ / shares		12 Months Ended
	Aug. 05, 2019	Dec. 31, 2019	Dec. 31, 2018
Volatility - range		107.60%	107.50%
Risk-free rate		2.23%	2.74%
Contractual term		5 years 6 months	5 years 6 months
2019 Secured Convertible Notes [Member] | Assumptions [Member]
Volatility - range	110.00%	115.00%
Risk-free rate	1.78%	1.60%
Contractual term	10 months 25 days	7 months 6 days
Calibrated stock price	$ 0.86	$ 1.06
Debt yield	88.60%	123.60%

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Calibrated stock price.

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Debt yield.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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