Note 4: Loans and Allowance for Loan Losses: Schedule of Debtor Troubled Debt Restructuring, Current Period (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)
Residential Mortgage
Financing Receivable, Modifications, Number of Contracts	4	1	4	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 305	$ 40	$ 305	$ 40
Construction Real Estate
Financing Receivable, Modifications, Number of Contracts	0	0	0	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 36
Commercial Real Estate
Financing Receivable, Modifications, Number of Contracts	1	0	1	4
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 55	$ 0	$ 55	$ 2,250
Consumer Loan
Financing Receivable, Modifications, Number of Contracts	2	1	2	3
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 27	$ 15	$ 27	$ 16
Commercial Loan
Financing Receivable, Modifications, Number of Contracts	2	0	2	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 64	$ 0	$ 64	$ 2
Total loans
Financing Receivable, Modifications, Number of Contracts	9	2	9	10
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 451	$ 55	$ 451	$ 2,344