Net Income Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

ulation of basic and diluted net income per share is as follows (in thousands, except per share amounts):

	Three Months Ended March 31,
	2013		2012
Basic:
Net income	$	3,385	$	2,351
Weighted average shares outstanding — basic	33,900		33,365
Net income per share — basic	$	0.10	$	0.07
Diluted:
Net income	$	3,385	$	2,351
Weighted average shares outstanding — basic	33,900		33,365
Add: Dilutive effect of employee stock plans	920		976
Weighted average shares outstanding — diluted	34,820		34,341
Net income per share — diluted	$	0.10	$	0.07