Other Income (Expense) - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Other Income And Expenses [Abstract]
Income From Third Party License Fees	$ 264	$ 161	$ 713	$ 619
Foreign Exchange Gains (Losses), Net	149	(79)	463	(978)
(Loss) gain on Fixed Asset Disposals, Net	3	21	7	76
Non-Income Tax Refunds and Other Related Credits	72	72	133	141
Other Nonoperating Income	54	53	265	179
Other Nonoperating Expense	(28)	(43)	(90)	(134)
Other Income (Expense), Net	$ 514	$ 185	$ 1,491	$ (97)