Goodwill And Intangible Assets (Schedule Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
Impairments	$ (3,175)	$ (3,175)
Foreign Currency		55
Goodwill, net, beginning balance		3,120
Flow Traffic [Member]
Goodwill, gross, beginning balance			1,050
Goodwill, gross, ending balance	1,050	1,050	1,050
Accumulated impairment losses	(1,050)	(1,050)	(1,050)
EIS [Member]
Goodwill, gross, beginning balance		8,239
Impairments		(1,372)
Goodwill, gross, ending balance	8,239	8,239
Goodwill, net, beginning balance		1,372
Accumulated impairment losses	(8,239)	(8,239)	(6,867)
CitySync [Member]
Goodwill, gross, beginning balance		5,516
Impairments	(1,803)	(1,803)
Foreign Currency		55
Goodwill, gross, ending balance	5,571	5,571
Goodwill, net, beginning balance		1,748
Accumulated impairment losses	$ (5,571)	$ (5,571)	$ (3,768)