Pension Plan (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Components of net periodic pension cost [Abstract]
Interest cost	$ 70	$ 65	$ 210	$ 196
Expected return on plan assets	(98)	(91)	(294)	(270)
Amortization of net loss	140	98	420	295
Net Periodic Pension Plan Cost	$ 112	$ 72	$ 336	$ 221