Pension Plan (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Components of net periodic pension cost [Abstract]
Interest cost	$ 70	$ 65	$ 140	$ 131
Expected return on plan assets	(98)	(90)	(196)	(179)
Amortization of net loss	140	98	280	197
Net Periodic Pension Plan Cost	$ 112	$ 73	$ 224	$ 149