Loans Held For Investment: Narrative (Details) (USD $)	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Loans held for investment	$ 759,253,000		$ 761,561,000
Loan interest income added to negative amortization loan balance	0	0
Interest-only ARM loans as percent of loans held for investment	23.90%		24.70%
Fixed-rate loans as a percentage of total loans held for investment	5.00%			5.00%
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	30,600,000		33,300,000
Mortgage loans, Multi-family
Loans held for investment	273,847,000		262,316,000
Mortgage loans, Multi-family | Subject to Negative Amortization
Loans held for investment	23,200,000		24,400,000
Mortgage loans, Single-family
Loans held for investment	391,888,000		404,341,000
Mortgage loans, Single-family | Subject to Negative Amortization
Loans held for investment	3,900,000		5,100,000
Mortgage loans, Commercial Real Estate
Loans held for investment	91,417,000		92,488,000
Mortgage loans, Commercial Real Estate | Subject to Negative Amortization
Loans held for investment	3,500,000		3,800,000
Adjustable Rate Residential Mortgage
Loans held for investment	$ 182,100,000		$ 188,500,000