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Investments in Foreclosed Real Estate (Details 2) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 30, 2016
Apr. 30, 2015
Apr. 30, 2016
Apr. 30, 2015
Schedule of changes in real estate owned [Roll Forward]        
Real Estate Acquired Through Foreclosure $ 47,325 $ 66,934 $ 50,233 $ 69,799
Real Estate Owned Additions 172 227 866 1,904
Real Estate Owned, Sales (32,361) (3,382) (35,728) (7,668)
Real Estate Owned, Impairments (558) (14) (713) (183)
Real Estate Held And Used Depreciation (2) (85) (82) (172)
Real Estate Acquired Through Foreclosure $ 14,576 $ 63,680 $ 14,576 $ 63,680