Income Taxes (Components of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
United States federal	$ 176	$ 547	$ 2,460
State and local	(44)	69	61
Foreign	592	901	1,706
Total current	724	1,517	4,227
Deferred:
United States federal	(1,636)	21	(1,890)
State and local	1	(40)	51
Foreign	77	(218)	2,515
Total deferred	(1,558)	(237)	676
Total income tax expense (benefit)	$ (834)	$ 1,280	$ 4,903