Note 4: Loans and Allowance for Loan Losses: Schedule of Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Residential Mortgage
Impaired Financing Receivable, Average Recorded Investment	$ 3,443	$ 2,836	$ 3,456	$ 2,889
Impaired Financing Receivable Interest Income Recognized	60	21	127	51
Construction Real Estate
Impaired Financing Receivable, Average Recorded Investment	1,326	1,378	1,329	1,387
Impaired Financing Receivable Interest Income Recognized	40	37	79	71
Commercial Real Estate
Impaired Financing Receivable, Average Recorded Investment	10,249	9,772	10,664	9,807
Impaired Financing Receivable Interest Income Recognized	305	186	551	367
Consumer Loan
Impaired Financing Receivable, Average Recorded Investment	0	0	0	0
Impaired Financing Receivable Interest Income Recognized	0	0	0	0
Commercial Loan
Impaired Financing Receivable, Average Recorded Investment	3,514	958	3,614	983
Impaired Financing Receivable Interest Income Recognized	51	18	109	37
Total loans
Impaired Financing Receivable, Average Recorded Investment	18,532	14,944	19,063	15,066
Impaired Financing Receivable Interest Income Recognized	$ 456	$ 262	$ 866	$ 526