Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings per Share [Abstract]

Reconciliation of the number of weighted shares used to compute basic and diluted net earnings per share

A reconciliation of the number of weighted shares used to compute basic and diluted net earnings per share for 2012, 2011 and 2010, are illustrated below:

	2012		2011		2010
Weighted average common shares outstanding for basic EPS		33,015,323		30,445,772		29,978,034
Effect of dilutive securities: employee stock options		346,395		396,741		328,328
Adjusted weighted average common shares outstanding for diluted EPS		33,361,718		30,842,513		30,306,362