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Consolidated Statements Of Operations (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2011	Jul. 31, 2010
Income (loss) from discontinued operations, income tax provisions (benefit)	$ 168	$ (66)
Gain on disposal of discontinued operations, income tax provision	$ 505

Income tax expense or benefit attributable to Income or Loss from discontinued operations during the phase-out period.

Amount of tax expense or benefit on gain (loss), not previously recognized, resulting from the sale of a business component.