Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) Per Share

Net Income (Loss) Per Share

3 Months Ended

Mar. 31, 2014

3. Net Income (Loss) Per Share

Basic net income (loss) per share excludes the effect of dilution and is computed by dividing net income (loss) by the weighted-average number of shares outstanding for the period. Diluted net income (loss) per share reflects the potential dilution that could occur if securities or other contracts to issue shares were exercised into shares. In calculating diluted net income (loss) per share, the numerator is adjusted for the change in the fair value of the warrant liability (only if dilutive) and the denominator is increased to include the number of potentially dilutive common shares assumed to be outstanding during the period using the treasury stock method.

The following table sets forth the reconciliation of the numerator and denominator used in the computation of basic and diluted net income (loss) per common share for the three months ended March 31, 2014 and 2013:

	Three months ended March 31,
(in thousands, except per share amounts)	2014		2013
Numerator:
Net income (loss) used for basic earnings per share	$	(1,804)	$	6,001
Less change in fair value of warrant liability		—		—
Net (loss) income used for diluted earnings per share	$	(1,804)	$	6,001
Denominator:
Basic weighted-average outstanding common shares		88,929		78,256
Effect of dilutive potential common shares resulting from options		—		2,237
Effect of dilutive potential common shares resulting from warrants		—		6,269
Weighted-average shares outstanding—diluted		88,929		86,762
Net income (loss) per common share:
Basic	$	(0.02)	$	0.08
Diluted	$	(0.02)	$	0.07

The table below presents common shares underlying stock options and warrants that are excluded from the calculation of the weighted average number of common shares outstanding used for the calculation of diluted net income (loss) per common share. These are excluded from the calculation due to their anti-dilutive effect for the three months ended March 31, 2014 and 2013:

	Three months ended September 30,
(in thousands)	2014		2013
Weighted-average anti-dilutive common shares resulting from options		6,697		491
Weighted-average anti-dilutive common shares resulting from warrants		3,967		7
		10,664		498