Net Loss Per Share

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Net Loss Per Share

3. Net Loss Per Share

Net loss attributable to common stockholders per share is computed by dividing the net loss allocable to common stockholders by the weighted average number of shares of common stock outstanding. Outstanding stock options, warrants and preferred stock have not been included in the calculation of the diluted net loss attributable to common stockholders per share because to do so would be anti-dilutive. Accordingly, the numerator and the denominator used in computing both basic and diluted net loss per share for each period are the same.

The following outstanding options, warrants and preferred stock were excluded from the computation of basic and diluted net loss per share for the periods presented because their effect would have been anti-dilutive (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2014		2013		2014		2013
Options to purchase common stock		3,337		1,796		3,337		1,796
Convertible preferred stock (as converted)		—		8,631		—		8,631
Convertible preferred stock warrants (as converted)		—		618		—		618
Common stock warrants		596		—		596		—