Employee Benefit and Deferred Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2012

Employee Benefit and Deferred Compensation Plans [Abstract]

Plan expense for noncontributory benefit pension plan and post-retirement health and life plans

	Pension Benefits						Other Benefits
	Three Months  Ended September 30,						Three Months  Ended September 30,
	2012			2011			2012		2011
Service cost	$	—		$	—		$	6	$	9
Interest cost		216			228			16		21
Expected return on plan assets		(298	)		(307	)		—		—
Prior service cost recognized		—			—			—		—
Recognized actuarial loss		88			76			18		34
Recognized curtailment loss		—			—			—		—
Net periodic benefit cost	$	6		$	(3	)	$	40	$	64
	Nine Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012		2011
Service cost	$	—		$	—		$	18	$	27
Interest cost		646			686			48		59
Expected return on plan assets		(894	)		(923	)		—		—
Prior service cost recognized		—			—			—		—
Recognized actuarial loss		266			228			54		106
Recognized curtailment loss		—			—			—		—
Net periodic benefit cost	$	18		$	(9	)	$	120	$	192

Stock option grants assumptions

	2012 Grant			2011 Grant
Shares granted		172,000			170,000
Dividend yield		4.55	%		4.02	%
Expected volatility		37	%		36	%
Risk-free interest rate		0.79	%		1.97	%
Expected lives		6 years			6 years
Weighted average exercise price	$	14.96		$	16.91
Weighted average fair value	$	3.10		$	3.93