Income Taxes (Components of the Provision(Benefit) for Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current
Federal									$ 0	$ 0	$ 0
State									(100)	54	18
Foreign									932	163	1,136
Total Current									832	217	1,154
Deferred
Federal									293	300	(417)
State									31	10	(67)
Foreign									(117)	(605)	38
Total Deferred									207	(295)	(446)
Provision (benefit) for income taxes	$ 854	$ 190	$ 238	$ (243)	$ (1,206)	$ 438	$ 280	$ 410	$ 1,039	$ (78)	$ 708