Share-Based Payments (Tables)

9 Months Ended

Sep. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Shares Available for Grant and Stock Option Activity

A summary of shares available for grant and stock option activity is detailed below.

		Options Outstanding
	Shares Available For Grant	Shares		Weighted- Average Exercise Price
Stock Options:
Balance at January 1, 2012	291,000	86,118		$	187.83
Exercised	—	—		—
Forfeited	—	(3,050	)	218.94
Expired	—	—		—
Stock options granted	—	—		—
Balance at September 30, 2012	291,000	83,068		$	186.69

Schedule of Stock Appreciation Rights Activity

	Stock Appreciation Rights Outstanding
	Awards		Weighted- Average Exercise Price
Stock Appreciation Rights:
Balance at January 1, 2012	75,411		$	126.64
Exercised	(2,700	)	121.28
Forfeited	(2,250	)	149.57
Granted	—		—
Balance at September 30, 2012	70,461		$	126.11

Summary of Information About Stock Options and SARs Outstanding

The following table summarizes information about stock options and SARs outstanding at September 30, 2012.

	Options/SARs Outstanding
	Number Outstanding		Weighted- Average Remaining Contractual Life	Options Exercisable
Exercise prices:
$150.00	50,050		1.6 years	50,050
255.13	24,018		5.6 years	9,608
208.05	9,000		5.7 years	7,200
251.49	1,000		5.9 years	400
236.00	250		5.9 years	100
114.64	33,443		6.4 years	10,129
132.56	35,768		9.2 years	—
Totals	153,529			77,487
Aggregate intrinsic value (in thousands)	$	1,339		$	290

Summary of Assumptions Employed Using Black-Scholes Option Pricing Model

In estimating the fair value of the options outstanding at September 30, 2012 and December 31, 2011, the Company employed the Black-Scholes option pricing model with assumptions as detailed below.

	September 30, 2012		December 31, 2011
Expected term of options	2 to 9 years		2 to 10 years
Expected volatility:
Range	21.99% to 35.57%		25.39% to 37.73%
Weighted-average	27.54	%	30.87	%
Expected dividend yield	0.25	%	0.26	%
Risk-free rate:
Range	0.37% to 1.55%		0.73% to 2.03%
Weighted-average	0.88	%	1.16	%