Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2014

Stockholders Equity Tables

Preferred Stock

	Number of Shares Issued
	and Outstanding as of
	March 31, 2014		December 31, 2013		Par Value		Conversion Ratio
Series "A"		-		-	$	0.0001		N/A
Series "B"		1		1		0.0001	4:1
Series "C"		1		1		0.0001	1:1
Series “D"		18,000		1,227,582		0.0001	10:1
Series “D-1"		945,139		59,265		0.0001	10:1
Series “E”		-		-		0.0001	1:1
Series “F"		-		-		0.0001	1:1
Series “F-1"		156,250		156,250		0.0001	1:1
Series “H"		459,043		459,043		0.0001	10:1
Series “I”		119,760		119,760		0.0001	20:1

Summary of warrant activity

	Warrants			Weighted Average Exercise Price		Total Intrinsic Value
Outstanding as of December 31, 2013		65,263		$	5.83		-
Issued		711,355			5.90
Cancelled		(1,597	)		28.00
Outstanding as of March 31, 2014		775,021		$	5.85	$	-

Fair value of stock-based compensation

	For the Three Months ended March 31, 2014
Exercise price	$	4.29 - $5.83
Expected stock price volatility		80.5% - 90.6	%
Risk-free rate of interest		0.76% - 1.53	%
Term (years)		5.0 - 10.0

Summary of option activity

	Number of Shares		Weighted Average Exercise Price		Total Intrinsic Value		Weighted Average Remaining Contractual Life (in years)
Outstanding as of December 31, 2013		1,983,876	$	7.14	$	1,935,990		9.2
Employee options granted		1,310,000		5.73				5.2
Non-employee options exercised		-
Non-employee options cancelled		-
Outstanding as of March 31, 2014		3,293,876	$	6.58		-		7.5
Options vested and expected to vest		3,293,876		6.58		-		7.5
Options vested and exercisable		1,646,126	$	6.59	$	-		7.1

	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		-		-				-
Non-employee options exercised		-
Non-employee options cancelled		-
Outstanding as of March 31, 2014		30,000		7.08		-		9.0
Options vested and expected to vest		30,000		7.08		-		9.0
Options vested and exercisable		30,000	$	7.08	$	-		9.0

Summary of the restricted stock award activity

	Number of Units			Weighted Average Grant Day Fair Value
Nonvested at December 31, 2013		250		$	6.83
Granted		10,000			4.67
Vested		(2,50	)		4.67
Forfeited		-			-
Nonvested at March 31, 2014		10,000		$	4.74

Stock-based compensation

	For the three months ended March 31,
	2014		2013
Employee restricted stock awards	$	2	$	3
Employee stock option awards		3,394		1
Total compensation expense	$	3,396	$	4