Net Income Per Common Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Weighted average number of common shares outstanding during the period

Net income per common share, as shown on the Condensed Consolidated Statements of Income (unaudited), is determined on the basis of the weighted average number of common shares outstanding during the period as follows:

	Three Months Ended March 31,
	2013	2012
Weighted average common shares outstanding
Basic	33,504,222	33,439,012
Dilutive effect of stock options and restricted stock	355,194	473,153
Weighted average common shares outstanding diluted	33,859,416	33,912,165