Employee Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Medical, Dental, Vision And Life Insurance Benefits [Member]
Employee Benefit Plans [Line Items]
Minimum service period employee eligibility	90 days
Educational Assistance Program and 401K [Member]
Employee Benefit Plans [Line Items]
Minimum service period employee eligibility	6 months
Long Term Disability Coverage [Member]
Employee Benefit Plans [Line Items]
Minimum service period employee eligibility	1 year
401K Plan [Member]
Employee Benefit Plans [Line Items]
Maximum percentage of empoloyee compensation to be matched	50.00%
Employer matching contribution, minimum employee service period	1 year
Employer matching contribution percent of match	25.00%
Matching percentage for employer contributions	6.00%
Expenses related to the defined contribution plan	$ 153,000	$ 143,000	$ 120,000