NOTE 18: Fair Value Measurements: Schedule of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
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	35,400	26,326
Financial Assets | Interest-bearing time deposits
Financial Instruments Owned Carrying Amount	969	1,953
Financial Assets | Investment in Federal Home Loan Bank Stock
Financial Instruments Owned Carrying Amount	5,233	5,661
Financial Assets | Stock in Federal Reserve Bank of St. Louis
Financial Instruments Owned Carrying Amount	4,350	3,566
Financial Assets | Loans Receivable
Financial Instruments Owned Carrying Amount	1,846,405	1,563,380
Financial Assets | Accrued interest receivable
Financial Instruments Owned Carrying Amount	10,189	7,992
Financial Liabilities | Deposits
Financial Instruments Owned Carrying Amount	1,893,695	1,579,902
Financial Liabilities | Securities Sold under Agreements to Repurchase
Financial Instruments Owned Carrying Amount	4,376	3,267
Financial Liabilities | Federal Home Loan Bank Advances
Financial Instruments Owned Carrying Amount	44,908	76,652
Financial Liabilities | Note payable
Financial Instruments Owned Carrying Amount	3,000	3,000
Financial Liabilities | Subordinated Debt
Financial Instruments Owned Carrying Amount	15,043	14,945
Financial Liabilities | Accrued interest payable
Financial Instruments Owned Carrying Amount	2,099	1,206
Commitments to Extend Credit
Financial Instruments Owned Carrying Amount	$ 0	$ 0