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Mortgage Loans Held For Investment And Related Assets (Schedule Of Mortgage Loan Portfolio) (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 30, 2016
Apr. 30, 2015
Apr. 30, 2014
Apr. 30, 2013
Mortgage Loans Held For Investment And Related Assets [Abstract]        
Document Fiscal Year Focus 2016      
Adjustable-rate loans $ (108,251) $ (130,182)    
Adjustable-rate loans, percent of total loans 52.00% 53.00%    
Fixed-rate loans $ (97,957) $ (115,034)    
Fixed-rate loans, percent of Total loans 48.00% 47.00%    
Total loans $ 206,208 $ 245,216    
Total loans, percent of Total loans 100.00% 100.00%    
Unamortized deferred fees and costs $ 1,695 $ 2,008    
Less: Allowance for loan losses (5,518) (7,886) $ (11,272) $ (14,314)
Total $ 202,385 $ 239,338