Loans Held For Investment: Narrative (Details) (USD $)	3 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Loans held for investment	$ 816,224,000	$ 761,561,000	$ 816,224,000
Loan interest income added to negative amortization loan balance	0	0	13,000
Interest-only ARM loans as percent of loans held for investment	26.20%	24.70%	26.20%
Fixed-rate loans as a percentage of total loans held for investment	5.00%	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	40,200,000	33,300,000	40,200,000
Mortgage loans, Multi-family
Loans held for investment	278,057,000	262,316,000	278,057,000
Mortgage loans, Multi-family | Subject to Negative Amortization
Loans held for investment	26,700,000	24,400,000	26,700,000
Mortgage loans, Single-family
Loans held for investment	439,024,000	404,341,000	439,024,000
Mortgage loans, Single-family | Subject to Negative Amortization
Loans held for investment	6,500,000	5,100,000	6,500,000
Mortgage loans, Commercial real estate
Loans held for investment	95,302,000	92,488,000	95,302,000
Mortgage loans, Commercial real estate | Subject to Negative Amortization
Loans held for investment	7,000,000	3,800,000	7,000,000
Adjustable Rate Residential Mortgage
Loans held for investment	$ 214,200,000	$ 188,500,000	$ 214,200,000