Benefit Plans (Net Periodic Pension Costs) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Benefit Plans [Abstract]
Service cost	$ 44	$ 59
Interest cost	276	346
Expected return on plan assets	(267)	(309)
Recognized net actuarial loss	134	56
Net periodic cost	$ 187	$ 152
Assumptions used: Discount rate	3.60%	4.25%
Assumptions used: Expected long-term rate of return on assets	5.50%	5.50%