Other Income (Expense) - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Other Income And Expenses [Abstract]
Licenses Revenue	$ 161	$ 181	$ 619	$ 736
Foreign Currency Transaction Gain (Loss), Realized	(79)	160	(978)	(824)
Gain on Fixed Asset Disposals, Net	21	25	76	130
Proceeds From Non Income Tax Refunds	72	531	141	531
Other Nonoperating Income	53	88	179	152
Other Nonoperating Expense	(43)	(71)	(134)	(167)
Other Income (Expense), Net	$ 185	$ 914	$ (97)	$ 558