Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2014

Basic and Diluted Net Loss per Share Computations

The following is a reconciliation of the numerators and denominators of the basic and diluted net loss per share computations:


	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Net loss	$	(2,757,186	)	$	(7,191,653	)	$	(22,492,666	)	$	(19,476,782	)
Weighted average shares outstanding used to compute basic and diluted net income or loss per share		66,535,000			41,402,717			59,224,989			39,787,527
Basic and diluted net loss per share	$	(0.04	)	$	(0.17	)	$	(0.38	)	$	(0.49	)

Outstanding Options, Warrants and Restricted Stock Units

The following outstanding potentially dilutive securities were excluded from the computation of diluted net income or loss per share because the effect would have been anti-dilutive as of September 30:


	2014		2013
Options		317,729		431,558
Restricted stock units		3,384,940		3,336,282
Warrants		23,478,181		9,894,909

Total		27,180,850		13,662,749