Net Income (Loss) Per Share

6 Months Ended

Jun. 30, 2011

Net Income (Loss) Per Share [Abstract]

Net Income (Loss) Per Share

3. Net Income (Loss) Per Share

          The Company calculates earnings per share (“EPS”) as required by Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic No. 260, Earnings Per Share. Basic EPS is calculated by dividing the net income available to common stockholders by the weighted average number of common shares outstanding for the period, excluding common stock equivalents. Diluted EPS is computed by dividing the net income available to common stockholders by the weighted average number of common shares outstanding for the period plus the weighted average number of dilutive common stock equivalents outstanding for the period determined using the treasury-stock method. For periods with a net loss, the dilutive common stock equivalents are excluded from the diluted EPS calculation. For purposes of this calculation, common stock subject to repurchase by the Company and options are considered to be common stock equivalents and are only included in the calculation of diluted earnings per share when their effect is dilutive.

	Three Months Ended June 30,					Six Months Ended June 30,
	2011			2010		2011			2010
	(unaudited, in thousands, except per share amounts)
Numerator:
Net income (loss) available to common stockholders	$	(7,847	)	$	1,885	$	(15,600	)	$	3,477
Denominator:
Weighted average shares outstanding — basic		35,775			34,264		35,520			33,999
Potential common shares — options (treasury stock method)		—			517		—			481
Weighted average shares outstanding — diluted		35,775			34,781		35,520			34,480
Shares excluded (anti-dilutive)		209			—		348			—
Shares excluded due to an exercise price greater than weighted average stock price for the period		1,970			2,440		1,848			2,440
Net income (loss) per common share:
Basic	$	(0.22	)	$	0.06	$	(0.44	)	$	0.10
Diluted	$	(0.22	)	$	0.05	$	(0.44	)	$	0.10