Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

The following table represents the components of net periodic pension expense:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Interest cost	$	572		$	572		$	1,714		$	1,715
Expected return on plan assets	(698		)	(800		)	(2,092		)	(2,399		)
Amortization of net loss	385			357			1,153			1,071
Total net periodic pension expense	$	259		$	129		$	775		$	387