Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2014

Stockholders Equity Tables

Preferred Stock

	Number of Shares Issued and Outstanding as of
	September 30, 2014		December 31, 2013		Par Value		Conversion Ratio
Series "A"		-		-	$	0.0001	N/A
Series "B"		-		1		0.0050	4:1
Series "C"		1		1		0.0001	1:1
Series “D"		4,725		1,227,582		0.0001	10:1
Series “D-1"		834		59,265		0.0001	10:1
Series “F-1"		-		156,250		0.0001	1:1
Series “H"		439,043		459,043		0.0001	10:1
Series “I”		35,541		119,760		0.0001	20:1
Series “J”		-		-		0.0001	1:1

Summary of warrant activity

	Warrants			Weighted Average Exercise Price		Total Intrinsic Value		Weighted Average Remaining Contractual Life (in years)
Outstanding as of December 31, 2013		65,263		$	5.83	$	-		2.44
Issued		711,355			5.90
Cancelled		(1,597	)		28.00
Outstanding as of September 30, 2014		775,021		$	5.85	$	-		4.26

Fair value of stock-based compensation

	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
	2014	2013	2014	2013
Exercise price	$1.34 - $1.79	$7.08	$1.34 - $5.83	$7.08
Expected stock price volatility	77.7% - 79.0%	78.9%	77.7% - 90.6%	78.9%
Risk-free rate of interest	0.95% - 1.76%	0.36% - 2.84%	0.76% - 1.76%	0.36% - 2.84%
Term (years)	2.5 - 5.3	4.82	2.5 - 5.5	4.82

Summary of option activity

A summary of option activity under the Company’s employee stock option plan for the nine months ended September 30, 2014 is presented below:

	Number of Shares		Weighted Average Exercise Price		Total Intrinsic Value		Weighted Average Remaining Contractual Life (in years)
Outstanding as of December 31, 2013		1,983,877	$	7.14	$	-		-
Employee options granted		3,260,000		3.65
Outstanding as of September 30, 2014		5,243,877		4.97	$	22,000		6.3
Options vested and expected to vest		5,243,877		4.97		22,000		6.3
Options vested and exercisable		4,563,627	$	5.12	$	5,500		6.3

A summary of option activity under the Company’s non-employee stock option plan for the nine months ended September 30, 2014 is presented below:

	Number of Shares		Weighted Average Exercise Price		Total Intrinsic Value		Weighted Average Remaining Contractual Life (in years)
Outstanding as of December 31, 2013		30,000	$	7.08	$	29,400		9.3
Non-employee options granted		25,000		2.86				4.5
Outstanding as of September 30, 2014		55,000		5.16		-		6.7
Options vested and expected to vest		55,000		5.16		-		6.7
Options vested and exercisable		55,000	$	5.16	$	-		6.7

Summary of the restricted stock award activity

	Number of Units			Weighted Average Grant Day Fair Value
Nonvested at Decemeber 31, 2013		250		$	6.83
Granted		119,285			1.78
Vested		(104,535	)		1.73
Nonvested at September 30, 2014		15,000		$	2.22

Stock-based compensation

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2014		2013		2014		2013
Employee restricted stock awards	$	19	$	-	$	33	$	6
Employee stock option awards		1,547		6,246		11,698		6,248
Non-employee restricted stock awards		15		816		175		816
Non-employee option awards		-		332		48		332
Total compensation expense	$	1,581	$	7,394	$	11,954	$	7,402