Investments in Non-Performing Loan Portfolios and Foreclosed Real Estate (Details Textual) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2012	Apr. 30, 2011
Investments in Non-Performing Loan Portfolios and Foreclosed Real Estate (Textual) [Abstract]
Number of loan in portfolio	11
Loan portfolio outstanding balance	$ 51.4
Company recognized earnings from its investments in the loan portfolios		3.7	0.3	5.9	(0.1)
Real Estate Held-for-sale		1.2		1.2
Real Estate Owned Held And Used		$ 16.9		$ 16.9