Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

The following table sets forth the components of net periodic pension expense as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Interest cost	$	528		$	552		$	1,056		$	1,104
Expected return on plan assets	(676		)	(662		)	(1,352		)	(1,324		)
Amortization of net loss	337			244			674			487
Total net periodic pension expense	$	189		$	134		$	378		$	267