Computation of Net Loss per Share (Tables)

6 Months Ended

Jun. 30, 2014

Computation of Net Loss per Share

Schedule of components of net loss per share

	Three months ended June 30,						Six months ended June 30,
	2014			2013			2014			2013
	(in thousands, except per share data)
Net loss attributable to common stockholders	$	(6,900	)	$	(4,019	)	$	(6,726	)	$	(13,008	)
Weighted average common shares outstanding used in computing basic and diluted net loss per share	111,212			108,409			110,932			108,319
Net loss per share
Basic and Diluted	$	(0.06	)	$	(0.04	)	$	(0.06	)	$	(0.12	)

Schedule of the number of incremental shares excluded from the calculation of net loss per share

	Three months ended June 30,		Six months ended June 30,
	2014	2013	2014	2013
	(in thousands)
Incremental shares excluded from the calculation of net loss per share	4,047	2,183	4,625	2,159