Note 4 - Net Income Per Share

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

4. Net Income per Share 

Basic net income per share is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted net income per share reflects the potential dilution that would occur if outstanding securities or other contracts to issue common stock were exercised or converted into common stock, and calculated using the treasury stock method. The following table sets forth the computation of basic and diluted net income per share (in thousands, except per share amounts):

	Three Months Ended March 31,
	2014		2013
Numerator:
Net income	$	9,018	$	2,499
Denominator:
Weighted average outstanding shares used to compute basic net income per share		38,470		36,259
Effect of dilutive securities		1,047		1,449
Weighted average outstanding shares used to compute diluted net income per share		39,517		37,708
Net income per share - basic	$	0.23	$	0.07
Net income per share - diluted	$	0.23	$	0.07

For the three months ended March 31, 2014, there were no anti-dilutive common stock equivalents. For the three months ended March 31, 2013, approximately 0.2 million common stock equivalents were excluded from the calculation of diluted net income per share because their inclusion would have been anti-dilutive.