Employee Benefits (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan, Assumptions Used in Calculations, Narrative Description	Employees who are at least 21 years of age and have completed a minimum of 1,000 hours of service.
Defined Benefit Plan, Contributions by Employer	$ 80,000	$ 60,000