Summary Of Significant Accounting Policies (Narrative) (USD $)	3 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended
	Oct. 31, 2011	Oct. 31, 2011	Jul. 31, 2011 RSM McGladrey, Inc. [Member]	Oct. 31, 2011 RSM McGladrey, Inc. [Member]	Oct. 31, 2011 RSM EquiCo, Inc. [Member]
Impairment of goodwill	$ 4,257,000	$ 4,257,000	$ 85,400,000		$ 14,300,000
Cash proceeds total, discontinued operation				475,000,000
Short-term receivable, discontinued operation				34,000,000
Note receivable, discontinued operation				$ 54,000,000