Net Income Per Share

6 Months Ended

Jul. 31, 2011

Net Income Per Share [Abstract]

Net Income Per Share [Text Block]

Net Income Per Share

Basic net income per share is computed by dividing net income by the weighted-average common shares and stock units outstanding. Diluted net income per share is computed by dividing net income by the weighted-average common and common equivalent shares outstanding (which includes the shares issuable upon exercise of employee stock options net of shares assumed purchased with the option proceeds) and stock units outstanding. Certain outstanding options were excluded from the diluted net income per-share calculations because their effect would have been anti-dilutive. For the three and six-month periods ended July 31, 2011 and July 31, 2010, 136 and 155 shares were excluded, respectively. Details of the earnings per share computation are presented below:

	Three Months Ended				Six Months Ended
	July 31, 2011		July 31, 2010		July 31, 2011		July 31, 2010
Numerator:
Net income	$	12,461	$	8,353	$	28,177	$	21,298
Denominator:
Weighted average common shares outstanding	18,083		18,037		18,079		18,033
Weighted average stock units outstanding	29		26		28		24
Denominator for basic calculation	18,112		18,063		18,107		18,057
Weighted average common shares outstanding	18,083		18,037		18,079		18,033
Weighted average stock units outstanding	29		26		28		24
Dilutive impact of stock options	103		33		107		22
Denominator for diluted calculation	18,215		18,096		18,214		18,079
Net income per share — basic	$	0.69	$	0.46	$	1.56	$	1.18
Net income per share — diluted	$	0.68	$	0.46	$	1.55	$	1.18