Pension Plan (Details) - Components of the net periodic pension cost - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Components of the net periodic pension cost [Abstract]
Interest cost	$ 573	$ 562
Expected return on plan assets	(667)	(598)
Amortization of net actuarial loss	579	358
Net periodic pension cost	$ 485	$ 322