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Stockholders' Equity (Details 4) - Warrants [Member] - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Summary of fair value of options and warrants granted using black-scholes option-pricing model with weighted-average assumptions
Expected dividend yield
Minimum [Member]
Summary of fair value of options and warrants granted using black-scholes option-pricing model with weighted-average assumptions
Expected volatility	191.00%	181.00%
Risk free interest rate	2.44%	1.03%
Expected option term (in years)	3 years	1 year 4 months 24 days
Weighted average grant date fair value	$ 0.21	$ 0.37
Maximum [Member]
Summary of fair value of options and warrants granted using black-scholes option-pricing model with weighted-average assumptions
Expected volatility	196.00%	211.00%
Risk free interest rate	2.58%	2.22%
Expected option term (in years)	5 years	8 years 6 months
Weighted average grant date fair value	$ 0.22	$ 0.50

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- Definition

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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