Stock Options and Stock Grants (Tables)

12 Months Ended

Dec. 31, 2016

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

Schedule of assumptions used to calculate Black-Scholes Ooption Pricing Model for stock 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,
	2016			2015
Weighted-average risk-free interest rates:		1.5	%		1.7	%
Dividend yield:		0.00	%		0.00	%
Weighted-average expected life of the option:		7 years			7 years
Weighted-average expected stock price volatility:		95	%		95	%
Weighted-average fair value of the options granted:	$	0.36		$	0.36

Schedule of option activity

The following table summarizes the option activity for our employees and directors during the year ended December 31, 2016:

	(rounded)			Weighted Average Exercise Price per		Weighted Average Remaining Contractual Term		Aggregate Intrinsic
Options	Shares			Share		(years)		Value
Outstanding on January 1, 2016		2,574,000		$	0.95
Granted		508,000		$	0.48
Exercised		(44,000	)	$	0.40
Forfeited or expired		(105,000	)	$	3.08
Outstanding on December 31, 2016		2,933,000		$	0.81		6.3	$	616
Exercisable on December 31, 2016		2,053,000		$	0.96		5.3	$	378
Shares available for grant		1,196,000