Equity (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2017

Dec. 31, 2016

Equity Tables

Summary of common stock warrants issued

A summary of common stock warrants issued with the sale of our common stock as of June 30, 2017, and changes during the period then ended is presented below:

	Number of Warrants			Weighted-average Exercise Price		Weighted-average Remaining Life (Years)		Aggregate Intrinsic Value
Outstanding, December 31, 2016		34,045,467		$	0.30
Granted		5,500,000			0.07
Forfeited or cancelled		(3,729,164	)		0.57
Outstanding, June 30, 2017		35,816,303			0.23		2.2	$	222,496
Exercisable, June 30, 2017		35,816,303			0.23		2.2	$	222,496

	Number of Warrants			Weighted-average Exercise Price		Weighted-average Remaining Life (Years)		Aggregate Intrinsic Value
Outstanding, December 31, 2014		19,114,765		$	0.56
Granted		10,466,539			0.35
Exercised		(1,084,597	)		0.35
Outstanding, December 31, 2015		20,726,707			0.56
Granted		14,392,309			0.12
Exercised		--			--
Forfeited or expired		(1,073,549	)		0.60
Outstanding, December 31, 2016		34,045,467			0.30		2.3	$	345,591
Exercisable, December 31, 2016		34,045,467			0.30		2.3	$	345,591