Employee Benefits Plans (Details) - Funded status (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Supplemental Employee Retirement Plan, Defined Benefit [Member]
Change in benefit obligation:
Beginning benefit obligation	$ 2,207	$ 2,065
Interest cost	66	82	93
Actuarial (gain) loss	(175)	223
Benefits paid	(162)	(163)
Ending benefit obligation	1,936	2,207	2,065
Change in plan assets:
Beginning fair value of plan assets
Employer contributions	162	163
Benefits paid	(162)	(163)
Ending fair value of plan assets
Funded status	(1,936)	(2,207)
Other Postretirement Benefit Plan, Defined Benefit [Member]
Change in benefit obligation:
Beginning benefit obligation	1,355	1,400
Interest cost	31	49
Plan participants’ contributions	76	122
Actuarial (gain) loss	(285)	(66)
Benefits paid	(111)	(150)
Ending benefit obligation	1,066	1,355
Change in plan assets:
Beginning fair value of plan assets
Employer contributions	35	28
Plan participants’ contributions	76	122
Benefits paid	(111)	(150)
Ending fair value of plan assets
Funded status	$ (1,066)	$ (1,355)