Note 11: Fair Value Measurements: Schedule of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Letter of Credit
Financial Instruments Owned Carrying Amount	$ 0	$ 0
Line of Credit
Financial Instruments Owned Carrying Amount	0	0
Financial Assets | Cash and Cash Equivalents
Financial Instruments Owned Carrying Amount	35,236	30,786
Financial Assets | Interest-bearing time deposits
Financial Instruments Owned Carrying Amount	498	747
Financial Assets | Investment in Federal Home Loan Bank Stock
Financial Instruments Owned Carrying Amount	4,311	3,547
Financial Assets | Investment In Stock Of Federal Reserve Bank Of St Louis
Financial Instruments Owned Carrying Amount	3,193	2,357
Financial Assets | Loans Receivable
Financial Instruments Owned Carrying Amount	1,452,975	1,397,730
Financial Assets | Accrued interest receivable
Financial Instruments Owned Carrying Amount	9,059	6,769
Financial Liabilities | Deposits
Financial Instruments Owned Carrying Amount	1,508,969	1,455,597
Financial Liabilities | Securities Sold under Agreements to Repurchase
Financial Instruments Owned Carrying Amount	3,697	10,212
Financial Liabilities | Federal Home Loan Bank Advances
Financial Instruments Owned Carrying Amount	59,914	43,637
Financial Liabilities | Accrued interest payable
Financial Instruments Owned Carrying Amount	1,080	918
Financial Liabilities | Subordinated Debt
Financial Instruments Owned Carrying Amount	14,896	14,848
Commitments to Extend Credit
Financial Instruments Owned Carrying Amount	$ 0	$ 0