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STOCKHOLDERS' EQUITY (Details 1)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Weighted average expected term	6 years 3 months	6 years 3 months
Weighted average volatility	123.00%	124.00%
Weighted average risk-free interest rate	3.00%	1.83%
Dividend yield	0.00%	0.00%
Warrant [Member]
Weighted average expected term	0 years	4 years 4 months 17 days
Weighted average volatility	0.00%	136.62%
Weighted average risk-free interest rate	0.00%	1.51%
Dividend yield	0.00%	0.00%

X

- 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

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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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- Definition

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

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- Definition

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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