Net Loss Per Share - (Tables)

12 Months Ended

Dec. 31, 2014

Schedule of Earnings Per Share, Basic and Diluted

Net loss per share for the years ended December 31, 2014 and 2013 was as follows (in thousands):



	Years Ended December 31,
	2014		2013		2012
Numerator
Net loss attributable to common stockholders	(10,977	)	(27,935	)	(9,701	)
Denominator
Weighted average shares outstanding - basic	25,288		9,041		4,615
Dilutive effect of preferred stock, restricted stock units, options, warrants and convertible debt	—		—		—
Weighted average shares outstanding - diluted	25,288		9,041		4,615

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following common equivalent shares were excluded from the diluted net loss per share calculation as their inclusion would have been anti-dilutive (in thousands):



	Years Ended December 31,
	2014	2013	2012
Stock options	1,881	1,573	1,254
Restricted stock units	100	—	—
Redeemable convertible preferred stock	—	—	4,451
Convertible preferred stock	—	—	6,527
Common stock warrants	—	—	604
Preferred stock warrants	—	—	23