Schedule of Stock option activity (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Stock option activity (Tables):

Schedule of Stock option activity

Exercise prices at December 31, 2012 and subsequent lower prices for the A, B, C and D warrants are as follow:

	Series A	Series B	Series C	Series D
December 31, 2012	$ 1.00	$ 3.00	$ 0.65	$ 7.00
March 21, 2012	$ 0.09	$ 3.00	$ 0.65	$ 7.00
August 21, 2012	$ 0.09	$ 0.11	$ 0.65	$ 7.00
April 1, 2013	$ 0.01	$ 0.11	$ 0.09	$ 7.00
June 18, 2014	$ -	$ 0.11	$ -	$ 1.60

Schedule of Assumptions used to value the options granted and warrants issued using the Black-Scholes option pricing model:

The following table provides the assumptions used to value the options granted and warrants issued using the Black-Scholes option pricing model:

	Series E	Series F
	and G	and H
Stock price volatility	111.60%	111.60%
Risk-free rate of return	4.26%	4.26%
Annual dividend yield	0.00%	0.00%
Expected life (in years)	0.5	3.0