Note 4: Loans and Allowance for Loan Losses: Schedule of Debtor Troubled Debt Restructuring, Current Period (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Residential Mortgage
Financing Receivable, Modifications, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
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	0	1	0	4
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 366	$ 0	$ 2,303
Consumer Loan
Financing Receivable, Modifications, Number of Contracts	0	1	0	2
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 1	$ 0	$ 1
Commercial Loan
Financing Receivable, Modifications, Number of Contracts	0	0	0	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 2
Total loans
Financing Receivable, Modifications, Number of Contracts	0	2	0	8
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 367	$ 0	$ 2,342