Interest and Other Income (Tables)

3 Months Ended

Jan. 31, 2012

Interest and Other Income [Abstract]

Revenues and expenses of non-core ancillary businesses

		September 30,		September 30,
	Three months ended January 31,
	2012		2011
Revenue	$	17,311	$	13,823
Expense	$	14,089	$	13,266