Employee Benefit Plans (Reconciliation of Changes in Plan's Benefit Obligations and Fair Value of Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Employee Benefit Plans [Abstract]
Benefit obligation at beginning of year	$ 9,240	$ 9,109
Service cost including expenses	48	50	54
Interest cost	478	473	482
Actuarial loss	1,559	138
Benefits paid	(524)	(530)
Benefit obligation at year-end	10,801	9,240	9,109
Fair value of plan assets at beginning of year	8,806	9,404
Actual return on plan assets	1,132	(70)
Employer contributions	5,000	0
Benefits paid	(526)	(528)
Fair value of plan assets at year-end	14,412	8,806	9,404
Funded status of plan at year end	$ 3,611	$ (434)