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Stock Options and Stock Grants (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of assumptions used to calculate Black-Scholes option Pricing Model for options granted

The following table illustrates the various assumptions used to calculate the Black-Scholes option pricing model for options granted for all years presented:

		Years Ended December 31,
		2017				2016
Weighted-average risk-free interest rates:			2.1	%			1.5	%
Dividend yield:			0.00	%			0.00	%
Weighted-average expected life of the option:		7 years				7 years
Weighted-average expected stock price volatility:			94	%			95	%
Weighted-average fair value of the options granted:		$	0.55			$	0.36

Schedule of option activity

The following table summarizes the option activity for our employees and directors during the year ended December 31, 2017:

										Weighted
						Weighted				Average
						Average				Remaining
						Exercise Price				Contractual				Aggregate
		(rounded)				per				Term				Intrinsic
Options		Shares				Share				(years)				Value
Outstanding on January 1, 2017			2,933,000			$	0.81
Granted			515,000			$	0.68
Exercised			(118,000	)		$	0.40
Forfeited or expired			(189,000	)		$	2.08
Outstanding on December 31, 2017			3,141,000			$	0.73				5.8			$	183
Exercisable on December 31, 2017			2,296,000			$	0.79				4.8			$	147
Shares available for grant			796,000

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- References

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- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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