Net Income (Loss) Per Share

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

4. Net Income (Loss) Per Share

The following table sets forth the computation of basic and diluted net income (loss) per share (in thousands, except per share data).

	Three Months Ended June 30,					Six Months Ended June 30,
	2013		2012			2013		2012
Net income (loss)	$	2,066	$	(4,208	)	$	4,090	$	(12,415	)
Weighted average common basic shares		40,921		40,852			40,915		40,847
Effect of dilutive securities		27		—			27		—
Weighted average common dilutive shares		40,948		40,852			40,942		40,847
Basic and diluted net income (loss) per share	$	0.05	$	(0.10	)	$	0.10	$	(0.30	)

For both the three and six months ended June 30, 2013, 27 thousand shares of unvested restricted common stock were included in the computation of diluted income per share. For both the three and six months ended June 30, 2012, the computation of diluted net loss per share did not include 0.1 million shares of unvested restricted common stock as their inclusion would have been anti-dilutive. Options to purchase approximately 1.3 million and 5.3 million shares for the three and six months ended June 30, 2013 and 2012, respectively, were also not included in the computation of diluted net loss per share as their exercise prices were in excess of the average stock prices for the periods presented.