Goodwill And Intangible Assets (Schedule Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Jun. 30, 2012	Sep. 30, 2011	Dec. 31, 2012	Dec. 31, 2011
Impairments			$ (3,175)	$ (11,685)
Foreign Currency			55	92
Goodwill, net, beginning balance			3,120	14,713
Goodwill, net, ending balance				3,120
Flow Traffic [Member]
Goodwill, gross, beginning balance				1,050
Impairments		(1,100)		(1,050)
Goodwill, gross, ending balance				1,050
Goodwill, net, beginning balance				1,050
Accumulated impairment losses				(1,050)
RTMS [Member]
Goodwill, gross, beginning balance			8,239	8,239
Impairments	(1,400)	(6,900)	(1,372)	(6,867)
Goodwill, gross, ending balance			8,239	8,239
Goodwill, net, beginning balance			1,372	8,239
Accumulated impairment losses			(8,239)	(6,867)
Goodwill, net, ending balance				1,372
CitySync [Member]
Goodwill, gross, beginning balance			5,516	5,424
Impairments	(1,800)	(3,700)	(1,803)	(3,768)
Foreign Currency			55	92
Goodwill, gross, ending balance			5,571	5,516
Goodwill, net, beginning balance			1,748	5,424
Accumulated impairment losses			(5,571)	(3,768)
Goodwill, net, ending balance				$ 1,748