Pension Plans (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Service-cost benefits earned during the period	$ 28	$ 31
Interest expense on benefit obligation	9	16
Actual (return) loss on plan assets	2	(11)
Actuarial loss	(5)	(13)
Net pension expense	$ 40	$ 71