Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Change in projected benefit obligation:
Beginning benefit obligation	$ (2,096)	$ (2,214)
Interest cost	(107)	(124)
Actuarial loss	(244)	(166)
Benefits paid	89	408
Ending benefit obligation	(2,358)	(2,096)
Change in plan assets, at fair value:
Beginning plan assets	1,449	1,744
Actual return	57	57
Employer contributions	313	82
Benefits paid	(89)	(408)
Plan expenses paid	(26)	(26)
Ending plan assets	1,704	1,449
Net amount recognized in accrued expenses and other liabilities-funded status	$ (654)	$ (647)