Net Income Per Share

12 Months Ended

Dec. 31, 2011

Net Income Per Share [Abstract]

Net Income Per Share

16. Net Income per Share

Basic net income per share is computed by dividing net income for the period by the weighted average number of common shares outstanding during the period. Diluted net income per share is computed by dividing net income for the period by the weighted average number of common shares outstanding plus the dilutive effect of outstanding stock options using the treasury stock method. To the extent such outstanding stock options are antidilutive, they are excluded from the calculation of diluted net income per share. The following table is a reconciliation of the net income and share amounts used in the calculation of basic net income per share and diluted net income per share:

	Year ended December 31,
	2011		2010		2009
Basic net income per share:
Net income	$	11,218	$	11,916	$	21,835
Weighted average common shares outstanding		21,677,837		21,620,550		21,594,366
Basic net income per share	$	0.52	$	0.55	$	1.01
Diluted net income per share:
Net income for diluted net income per share	$	11,218	$	11,916	$	21,835
Shares used in computed basic net income per share		21,677,837		21,620,550		21,594,366
Dilutive effect of non-vested shares and stock options		529,344		214,867		174,317
Shares used in computed diluted net income per share		22,207,181		21,835,417		21,768,683
Diluted net income per share	$	0.51	$	0.55	$	1.00
Shares excluded from diluted net income per share computation (1)		1,022,028		2,076,725		1,600,772

(1) These shares subject to stock options were not included in the computation of diluted net income per share because they would have been antidilutive for the years presented.