Divestitures (Narrative) (Details) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended	1 Months Ended		3 Months Ended
	Nov. 30, 2012	Nov. 30, 2011	Nov. 30, 2010	Oct. 31, 2012 Shadow [Member]	Nov. 30, 2012 Shadow [Member]	Sep. 30, 2012 FuseSource [Member]	Nov. 30, 2012 FuseSource [Member]	Nov. 30, 2012 Artix, Orbacus and Orbix [Member]	Jan. 31, 2013 Subsequent Event [Member] Artix, Orbacus and Orbix [Member]	Dec. 31, 2012 Subsequent Event [Member] Actional, DataXtend, ObjectStore, Savvion, and Sonic [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total consideration				$ 33,000,000					$ 15,000,000	$ 60,500,000
Distributor license agreement term (in years)					3
Purchase price				31,903,000		21,300,000
Reduction of total sales price				1,100,000
Impairment loss	(8,601,000)	0	0					(8,601,000)
Consideration held in escrow					$ 3,300,000		$ 2,100,000
Months held In escrow (in months)					15		15