6. Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

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

Stock Option Activity

	Number of Shares			Weighted Avg. Exercise Price		Weighted Average Remaining Contract Term (# years)		Intrinsic Value
Outstanding at January 1, 2015		2,423,253		$	2.92
Granted		1,008,026			0.67
Exercised		-			-
Forfeited and canceled		(84,687	)		1.28
Outstanding at June 30, 2015		3,346,592		$	2.28		8.2	$	-
Exercisable at June 30, 2015		1,546,201		$	3.35		7.1	$	-

Warrant Activity

	Number of Shares			Weighted Avg. Exercise Price		Weighted Average Remaining Contract Term (# years)		Intrinsic Value
Outstanding at January 1, 2015		3,046,801		$	4.08
Granted		25,579,935			0.52
Exercised		(7,620	)		0.50
Forfeited and canceled		(223,119	)		9.37
Outstanding at June 30, 2015		28,395,997		$	0.80		2.68	$	-
Exercisable at June 30, 2015		28,395,997		$	0.80		2.68	$	-