Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Stock-Based Compensation

Summary of the Company's stock option and restricted stock activity

	Stock Options			Weighted- Average Exercise Price		Aggregate Intrinsic Value			Restricted Stock			Weighted- Average Grant-Date Fair Value
Outstanding (stock options); non-vested (restricted stock) at December 31, 2011		55,500		$	30.92	$	1,582			24,223		$	41.49
Granted		9,900			47.84		—			17,235			53.00
Exercised (stock options); vested (restricted stock)		(10,000	)		7.48		(559	)		(18,898	)		49.92
Forfeited		—			—		—			(182	)		53.29
Outstanding (stock options); non-vested (restricted stock) at December 31, 2012		55,400		$	38.13	$	603			22,378		$	44.59
Exercisable at December 31, 2012		55,400		$	38.13	$	603			n/a			n/a

	2012		2011		2010
Weighted-average fair value of stock options granted during the year	$	9.51	$	13.99	$	12.40
Weighted-average remaining contractual life for stock options in years		6.21		5.64		6.03
Total fair value of stock options vested during the year	$	94	$	133	$	118
Total intrinsic value of stock options exercised during the year	$	559	$	606	$	1,107
Total fair value of restricted stock vested during the year	$	943	$	715	$	649