Divestitures (Income (Loss) from Discontinued Operations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
Nov. 30, 2012	Nov. 30, 2011	Nov. 30, 2010	Oct. 31, 2012 Shadow [Member]	Nov. 30, 2012 Shadow [Member]	Nov. 30, 2011 Shadow [Member]	Nov. 30, 2010 Shadow [Member]	Sep. 30, 2012 FuseSource [Member]	Nov. 30, 2012 FuseSource [Member]	Nov. 30, 2011 FuseSource [Member]	Nov. 30, 2010 FuseSource [Member]	Nov. 30, 2012 Artix, Orbacus and Orbix [Member]	Nov. 30, 2011 Artix, Orbacus and Orbix [Member]	Nov. 30, 2010 Artix, Orbacus and Orbix [Member]	Nov. 30, 2012 Actional, DataXtend, ObjectStore, Savvion, and Sonic [Member]	Nov. 30, 2011 Actional, DataXtend, ObjectStore, Savvion, and Sonic [Member]	Nov. 30, 2010 Actional, DataXtend, ObjectStore, Savvion, and Sonic [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue					$ 12,518	$ 16,267	$ 15,561		$ 14,484	$ 14,820	$ 12,491	$ 28,942	$ 33,983	$ 38,281	$ 81,576	$ 107,821	$ 111,177
Income (loss) before income taxes					4,882	4,067	(4,215)		(7,118)	(2,840)	(211)	6,003	13,237	10,719	(18,314)	(27,484)	(30,099)
Income tax (provision) benefit					(164)	(1,079)	1,447		3,000	915	85	(3,562)	(3,596)	(2,273)	6,234	10,067	10,077
Gain on sale, net of tax				12,692	12,692	0	0	11,187	11,187	0	0
Income (loss) from discontinued operations, net	$ 14,840	$ (6,713)	$ (14,470)		$ 17,410	$ 2,988	$ (2,768)		$ 7,069	$ (1,925)	$ (126)	$ 2,441	$ 9,641	$ 8,446	$ (12,080)	$ (17,417)	$ (20,022)

Gain (loss) after tax expense or benefit, not previously recognized and resulting from the sale of a business component, which is recognized at the date of sale. A gain (loss) reflects the amount by which the consideration received exceeds (is exceeded by) the net carrying amount (reflecting previous provisions for loss on disposal, if any) of the disposal group.

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Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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- Definition

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-Publisher FASB

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6909487&loc=d3e38679-109324

+ Details

- Definition

This element represents the overall income (loss) from a disposal group apportioned to the parent that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References+ Details