Goodwill And Intangible Assets (Narrative) (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
Goodwill impairment charges			$ 3,175	$ 11,685
Flow Traffic [Member]
Goodwill impairment charges		1,100		1,050
CitySync [Member]
Goodwill impairment charges	1,800	3,700	1,803	3,768
RTMS [Member]
Goodwill impairment charges	$ 1,400	$ 6,900	$ 1,372	$ 6,867