Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2015

Reconciliation of Numerators and Denominators used in Computing Basic and Diluted Net Income Per Share

The following is a reconciliation of the numerators and denominators used in computing basic and diluted net income per share:


	Three Months Ended
	March 31, 2015			March 31, 2014
Net income (loss)	$	(9,714,471	)	$	(9,798,757	)

Numerator, basic and diluted net income (loss) available to stockholders	$	(9,714,471	)	$	(9,798,757	)

Denominator:
Shares used in computation – basic:
Weighted average common shares outstanding		86,515,835			83,937,883

Common shares outstanding for basic		86,515,835			83,937,883

Shares used in computation – diluted:
Common shares outstanding for basic		86,515,835			83,937,883

Shares used in computing diluted net income per share		86,515,835			83,937,883

Net (loss) per share – basic	$	(0.11	)	$	(0.12	)
Net (loss) per share – diluted	$	(0.11	)	$	(0.12	)

Convertible Preferred Stock Excluded from EPS [Member]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Potential common shares from outstanding Convertible Preferred Stock calculated on an if-converted basis having an anti-dilutive effect on diluted earnings per share were excluded from potential common shares as follows:


	Three Months Ended
	March 31, 2015		March 31, 2014
Potential common shares from Convertible Preferred Stock excluded from EPS		32,400		32,400

In the Money Potential Common Shares [Member]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The potential common shares in the following tables represent potential common shares calculated using the treasury stock method from outstanding options, stock awards and warrants that were excluded from the calculation of diluted EPS:


	Three Months Ended
	March 31, 2015		March 31, 2014
Average market price during the period	$	0.79	$	2.10
In the money potential common shares from options excluded		—		10,057
In the money potential common shares from warrants excluded		—		—

Out of Money Potential Common Shares [Member]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Potential common shares from out-of-the-money options and warrants were also excluded from the computation of diluted EPS because calculation of the associated potential common shares has an anti-dilutive effect on EPS. The following table lists options and warrants that were excluded from diluted EPS:


	Three Months Ended
	March 31, 2015		March 31, 2014
Out of the money options and warrants excluded:
Stock options with an exercise price of $1.04 per share		1,652,000		—
Stock options with an exercise price of $1.07 per share		50,000		—
Stock options with an exercise price of $1.74 per share		51,750		—
Stock options with an exercise price of $2.20 per share		969,610		—
Stock options with an exercise price of $2.73 per share		644,469		651,969
Stock options with an exercise price of $2.74 per share		633,835		633,835
Stock options with an exercise price of $2.89 per share		983,822		993,822
Stock options with an exercise price of $3.25 per share		100,000		100,000
Stock options with an exercise price of $3.40 per share		100,000		100,000
Stock options with an exercise price of $3.43 per share		40,000		40,000
Stock options with an exercise price of $3.50 per share		100,000		100,000
Stock options with an exercise price of $3.90 per share		20,000		20,000
Stock options with an exercise price of $4.00 per share		—		52,500
Stock options with an exercise price of $7.00 per share		—		525,000
Warrants with an exercise price of $3.60 per share		1,562,500		1,562,500

Total anti-dilutive warrants and options excluded from EPS		6,907,986		4,779,626

Unvested Restricted Stock Awards Excluded from EPS [Member]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The weighted average equivalent common shares relating to our unvested restricted stock awards that were excluded from potential common shares in the earning per share calculation due to having an anti-dilutive effect are:


	Three Months Ended
	March 31, 2015		March 31, 2014
Potential common shares from unvested restricted stock awards excluded from EPS		1,776,210		654,342