Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2011

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 2011, 2010 and 2009, are illustrated below:

	2011		2010		2009
Weighted average common shares outstanding for basic EPS		30,445,772		29,978,034		29,729,874
Effect of dilutive securities: employee stock options		396,741		328,328		76,068
Adjusted weighted average common shares outstanding for diluted EPS		30,842,513		30,306,362		29,805,942