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Investments in Distressed Loans and Foreclosed Real Estate (Details Textual) (USD $)
3 Months Ended 9 Months Ended
Jul. 31, 2014
Jul. 31, 2013
Jul. 31, 2014
Jul. 31, 2013
Apr. 30, 2014
Oct. 31, 2013
Apr. 30, 2013
Oct. 31, 2012
Real Estate Properties [Line Items]                
Real Estate Acquired Through Foreclosure $ 79,319,000 $ 72,912,000 $ 79,319,000 $ 72,912,000 $ 76,652,000 $ 72,972,000 $ 71,458,000 $ 58,353,000
Investments in Non-Performing Loan Portfolios and Foreclosed Real Estate (Textual) [Abstract]                
Investment in performing loans 0   0     800,000    
Financing Receivable, Recorded Investment, Nonaccrual Status 4,300,000   4,300,000     21,400,000    
Gains (losses) upon acquisition of REO 3,000,000 1,600,000 4,500,000 3,100,000        
Income from Gibraltar 4,505,000 4,072,000 10,219,000 5,184,000        
Assets Held-for-sale [Member]
               
Real Estate Properties [Line Items]                
Real Estate Acquired Through Foreclosure 2,200,000   2,200,000     9,700,000    
real estate held and used [Member]
               
Real Estate Properties [Line Items]                
Real Estate Acquired Through Foreclosure $ 77,100,000   $ 77,100,000     $ 63,200,000