Loans Held For Investment: Narrative (Details) loan in Millions	3 Months Ended	12 Months Ended
Jun. 30, 2016 USD ($) loan	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) loan
Loans held for investment	$ 855,476,000	$ 822,979,000	$ 855,476,000
Loan interest income added to negative amortization loan balance	$ 0	$ 0	$ 0
Interest-only ARM loans as percent of loans held for investment	7.60%	18.60%	7.60%
Fixed-rate loans as a percentage of total loans held for investment	3.00%	4.00%	3.00%
First Trust Deed Loans
Loans deemed uncollectible, period of delinquency			150 days
Commercial Business or Second Trust Deed Loans
Loans deemed uncollectible, period of delinquency			120 days
Troubled Debt Restructurings
Loans deemed uncollectible, period of delinquency			90 days
Bankruptcy
Loans deemed uncollectible, period of delinquency			60 days
Minimum
Loan principal, increase due to negative amortization, as a percentage of original loan amount			110.00%
Adjustable Rate Mortgage, Term of Fixed Interest Rate			2 years
Maximum
Loan principal, increase due to negative amortization, as a percentage of original loan amount			115.00%
Adjustable Rate Mortgage, Term of Fixed Interest Rate			5 years
Segregated restructured loans, period of delinquency			90 days
Maximum \| Bankruptcy
Allowance for loan losses, pooling method, period of delinquency			60 days
Mortgage Loans on Real Estate \| Subject to Negative Amortization
Loans held for investment	$ 10,200,000	$ 14,100,000	$ 10,200,000
Mortgage loans, Multi-family
Loans held for investment	415,627,000	347,020,000	415,627,000
Mortgage loans, Multi-family \| Subject to Negative Amortization
Loans held for investment	6,900,000	10,700,000	6,900,000
Mortgage loans, Single-family
Loans held for investment	324,497,000	365,961,000	324,497,000
Held-to-maturity Securities, Transferred Security, at Carrying Value	$ 5,200,000	$ 4,500,000	$ 5,200,000
Loans, held for investment, originated for sale, subsequently transferred	0.0	0	0.0
Mortgage loans, Single-family \| Subject to Negative Amortization
Loans held for investment	$ 3,100,000	$ 3,200,000	$ 3,100,000
Mortgage loans, Commercial real estate
Loans held for investment	99,528,000	100,897,000	99,528,000
Mortgage loans, Commercial real estate \| Subject to Negative Amortization
Loans held for investment	200,000	200,000	200,000
Adjustable Rate Residential Mortgage
Loans held for investment	$ 64,700,000	$ 152,600,000	$ 64,700,000

Adjustable Rate Mortgage, Term of Fixed Interest Rate

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- Definition

Allowance for Loan Losses, Pooling Method, Period of Delinquency

+ References

No definition available.

+ Details

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- Definition

Fixed Rate Loans as a Percentage of Total Loans

+ References

No definition available.

+ Details

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- Definition

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+ References

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- Definition

Loan Deemed Uncollectible, Period of Delinquency

+ References

No definition available.

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- Definition

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- Definition

Loan Principal, Increase due to Negative Amortization, as a Percentage of Original Loan Amount

+ References

No definition available.

+ Details

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- Definition

Loans, held for investment, originated for sale, subsequently transferred

+ References

No definition available.

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- Definition

Segregated Restructured Loans, Period of Delinquency

+ References

No definition available.

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- Definition

For any transfer of securities categorized as held-to-maturity, this item represents the net carrying amount of the transferred security to another category of investments in debt and equity securities (trading or available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27405-111563

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

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