Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per share

The computation of basic and diluted earnings per share is shown below (in thousands, except per share data).

	Years Ended December 31
	2012			2011			2010
Basic earnings per common share computation
Net income per consolidated statements of income	$	17,136		$	15,104		$	11,316
Net earnings allocated to participating securities		(62	)		(42	)		(33	)
Net earnings allocated to common stock	$	17,074		$	15,062		$	11,283
Distributed earnings allocated to common stock	$	8,182		$	8,101		$	6,914
Undistributed earnings allocated to common stock		8,892			6,961			4,369
Net earnings allocated to common stock	$	17,074		$	15,062		$	11,283
Weighted average common shares outstanding, including shares considered participating securities		12,441			12,306			10,630
Less: Average participating securities		(41	)		(33	)		(30	)
Weighted average shares		12,400			12,273			10,600
Basic earnings per common share	$	1.38		$	1.23		$	1.06
Diluted earnings per common share computation
Net earnings allocated to common stock	$	17,074		$	15,062		$	11,283
Weighted average common shares outstanding for basic earnings per common share		12,400			12,273			10,600
Add: Dilutive effects of assumed exercises of stock options		3			6			9
Weighted average shares and dilutive potential common shares		12,403			12,279			10,609
Diluted earnings per common share	$	1.38		$	1.23		$	1.06