Mortgage Loans Held For Investment And Related Assets (Schedule Of Mortgage Loan Portfolio) (Details) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2013	Apr. 30, 2013	Jul. 31, 2012	Apr. 30, 2012
Mortgage Loans Held For Investment And Related Assets [Abstract]
Adjustable-rate loans	$ 174,481	$ 191,093	$ 222,474
Adjustable-rate loans, percent of total loans	54.00%	55.00%	55.00%
Fixed-rate loans	147,973	159,142	183,196
Fixed-rate loans, percent of Total loans	46.00%	45.00%	45.00%
Total loans	322,454	350,235	405,670
Total loans, percent of Total loans	100.00%	100.00%	100.00%
Unamortized deferred fees and costs	2,741	2,868	3,274
Less: Allowance for loan losses	(15,514)	(14,314)	(22,185)	(26,540)
Total	$ 309,681	$ 338,789	$ 386,759

Adjustable Rate Loans To Total Loans

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Fixed Rate Loans To Total Loans

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Total Loans To Total Loans

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Reflects the carrying amount of loans charging borrowers fixed rates of interest.

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Reflects the carrying amount of loans charging borrowers variable, or adjustable, rates of interest.

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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

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