Other Income (Expense) - (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Other Income And Expenses [Abstract]
Income From Third Party License Fees	$ 177	$ 204	$ 449	$ 458
Foreign Exchange Gains (Losses), Net	2	(305)	314	(899)
(Loss) gain on Fixed Asset Disposals, Net	(1)	3	4	55
Non-Income Tax Refunds and Other Related Credits	40	0	61	69
Other Nonoperating Income	87	54	211	126
Other Nonoperating Expense	(34)	(44)	(62)	(91)
Other Income (Expense), Net	$ 271	$ (88)	$ 977	$ (282)