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Note 9 - Net Income Per Share

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

9.  Net Income Per Share

Basic net income per share is computed by dividing net income by weighted average number of common shares outstanding for the period (excluding outstanding stock options and shares subject to repurchase). Diluted net income per share is computed using the weighted-average number of common shares outstanding for the period plus the potential effect of dilutive securities which are convertible into common shares (using the treasury stock method), except in cases in which the effect would be anti-dilutive. Under the treasury stock method, the amount that the employee must pay for exercising stock options, the amount of compensation cost for future service that the Company has not yet recognized, and the amount of the tax benefits that would be recorded in additional paid-in capital when the award becomes deductible are assumed to be used to repurchase shares.  The following is a reconciliation of the numerators and denominators used in computing basic and diluted net income per share (in thousands except per share amount):

		Year Ended December 31,
		2014				2013				2012
Numerator:
Net income		$	18,462			$	20,929			$	37,211
Numerator:
Basic weighted-average shares outstanding			30,743				29,826				28,700
Effect of dilutive options and restricted stock			1,196				1,567				1,109
Diluted weighted-average shares outstanding			31,939				31,393				29,809
Net income per share - Basic		$	0.60			$	0.70			$	1.30
Net income per share - Diluted		$	0.58			$	0.67			$	1.25

 The following table sets forth potential shares of common stock that are not included in the diluted net loss per share calculation above because to do so would be anti-dilutive for the periods indicated (in thousands):

		December 31,
		2014				2013
Outstanding options			61				49
Nonvested shares of restricted stock units			19				4
Employee Stock Purchase Plan			50				7
Total			130				60

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The entire disclosure for earnings per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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