Earnings per Common Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings per Common Share

Schedule of calculation of basic and diluted earnings per share

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Numerator:
Net income:	$	20,155	$	2,397	$	22,845	$	2,987
Denominator:
Weighted-average common shares outstanding - basic	12,463,406		12,378,371		12,461,010		12,373,143
Dilutive effect of stock-based compensation plans	107,699		128,330		97,424		134,416
Weighted-average common shares outstanding - diluted	12,571,105		12,506,701		12,558,434		12,507,559
Net income per share - basic	$	1.62	$	0.19	$	1.83	$	0.24
Net income per share - diluted	$	1.60	$	0.19	$	1.82	$	0.24