Loans Held For Investment: Schedule of Loans Held for Investment Contractually Repricing (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	$ 17,719
Total loans held for investment, gross	896,041	$ 916,432
Mortgage loans, Single-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	12,243
Total loans held for investment, gross	313,837	322,197
Mortgage loans, Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	2,553
Total loans held for investment, gross	463,786	479,959
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	588
Total loans held for investment, gross	103,366	97,562
Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	1,903
Total loans held for investment, gross	14,430	16,009
Commercial Business Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	432
Total loans held for investment, gross	478	576
Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	0
Total loans held for investment, gross	144	$ 129
Within One Year
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	310,999
Within One Year | Mortgage loans, Single-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	152,732
Within One Year | Mortgage loans, Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	117,609
Within One Year | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	27,941
Within One Year | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	12,527
Within One Year | Commercial Business Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	46
Within One Year | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	144
After One Year Through 3 Years
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	231,367
After One Year Through 3 Years | Mortgage loans, Single-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	23,887
After One Year Through 3 Years | Mortgage loans, Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	169,374
After One Year Through 3 Years | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	38,106
After One Year Through 3 Years | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	0
After One Year Through 3 Years | Commercial Business Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	0
After One Year Through 3 Years | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	0
After 3 Years Through 5 Years
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	265,513
After 3 Years Through 5 Years | Mortgage loans, Single-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	73,968
After 3 Years Through 5 Years | Mortgage loans, Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	160,034
After 3 Years Through 5 Years | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	31,511
After 3 Years Through 5 Years | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	0
After 3 Years Through 5 Years | Commercial Business Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	0
After 3 Years Through 5 Years | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	0
After 5 Years Through 10 Years
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	70,443
After 5 Years Through 10 Years | Mortgage loans, Single-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	51,007
After 5 Years Through 10 Years | Mortgage loans, Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	14,216
After 5 Years Through 10 Years | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	5,220
After 5 Years Through 10 Years | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	0
After 5 Years Through 10 Years | Commercial Business Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	0
After 5 Years Through 10 Years | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	$ 0