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Stock Options and Warrants (Details) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Warrant [Member]
Risk-free interest rates	2.33%
Expected life (in years)	4 years 10 months 25 days	5 years
Expected volatility	116.00%
Dividend yield	0.00%	0.00%
Weighted-average grant date fair value per share	$ 1.24
Minimum [Member] | Warrant [Member]
Risk-free interest rates		1.85%
Expected volatility		63.00%
Weighted-average grant date fair value per share		$ 1.10
Maximum [Member] | Warrant [Member]
Risk-free interest rates		2.20%
Expected volatility		115.00%
Weighted-average grant date fair value per share		$ 2.89
Stock Options [Member]
Risk-free interest rates	2.69%
Expected life (in years)	4 years 10 months 25 days	4 years 10 months 25 days
Expected volatility	66.00%
Dividend yield	0.00%	0.00%
Weighted-average grant date fair value per share	$ 0.72	$ 0.90
Stock Options [Member] | Minimum [Member]
Risk-free interest rates		172.00%
Expected volatility		82.00%
Stock Options [Member] | Maximum [Member]
Risk-free interest rates		1.81%
Expected volatility		85.00%

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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-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.

+ References

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-Publisher FASB
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-Topic 718
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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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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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