Pension Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Change in benefit obligation:
Benefit obligation at beginning of year	$ 472	$ 472
Service cost	28	31
Interest cost	9	16
Actuarial loss	5	13
Benefits paid	(7)	0
Effect of foreign exchange rate changes	(49)	(60)
Benefit obligation at end of year	458	472
Change in plan assets:
Fair value of plan assets at beginning of year	401	466
Actual loss (return) on plan assets	2	(11)
Effect of foreign exchange rate changes	(41)	(54)
Fair value of plan assets at end of year	362	401
Funded status and accrued benefit cost	$ (96)	$ (71)