Goodwill And Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Oct. 10, 2011 Qumu, Inc. [Member]	Jun. 30, 2012 Cost Of Product Revenues [member]	Jun. 30, 2011 Cost Of Product Revenues [member]	Jun. 30, 2012 Cost Of Product Revenues [member]	Jun. 30, 2011 Cost Of Product Revenues [member]
Business Acquisition, Purchase Price Allocation, Goodwill Amount					$ 22,218,000
Amortization expense	$ 264,000		$ 511,000			$ 268,000	$ 50,000	$ 536,000	$ 100,000