Stock Purchase Warrants (Details) - $ / shares	1 Months Ended	3 Months Ended	12 Months Ended
Dec. 26, 2017	Nov. 18, 2016	Mar. 31, 2018	Dec. 31, 2017
Closing stock price	$ 0.53	$ 1.75	$ 0.32	$ 0.51
Expected dividends	0.00%	0.00%	0.00%	0.00%
Expected volatility	85.00%	95.00%	80.00%	80.00%
Risk free interest rate	2.42%	1.39%	2.19%	1.86%
Expected life of warrant (years)	4 years 11 months 1 day	5 years	1 year 6 months 18 days	1 year 9 months 14 days
Series A Warrants [Member]
Closing stock price		$ 0.89	$ 0.32	$ 0.51
Expected dividends		0.00%	0.00%	0.00%
Expected volatility		85.00%	80.00%	80.00%
Risk free interest rate		1.58%	2.35%	1.97%
Expected life of warrant (years)		4 years	2 years 7 months 6 days	2 years 10 months 24 days

Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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