Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Outstanding Options, Warrants and Preferred Stock Excluded from Computation of Basic and Diluted Net Loss Per Share

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

	2014		2013
Stock options		3,169		—
Stock options (as converted)		—		1,806
Convertible preferred stock (as converted)		—		8,631
Convertible preferred stock warrants (as converted)		—		607
Common stock warrants		618		—