Derivative and Other Financial Instruments with Off-Balance Sheet Risks: Schedule of Undisbursed Funds Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Derivative [Line Items]
Loans and Leases Receivable, Loans in Process	$ 7,358	$ 9,015
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	18,144	29,342
Undisbursed Lines of Credit - Mortgage Loans
Derivative [Line Items]
Loans and Leases Receivable, Loans in Process	7,358	9,015
Undisbursed Lines of Credit - Commercial Business Loans
Derivative [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	559	646
Undisbursed Lines of Credit - Consumer Loans
Derivative [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	525	562
Commitments to Extend Credit, Loans to be Held for Investment
Derivative [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	$ 9,702	$ 19,119