Note 4: Loans and Allowance for Loan Losses: Schedule of Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Residential Mortgage
Impaired Financing Receivable, Average Recorded Investment	$ 3,322	$ 2,857	$ 3,395	$ 2,893
Impaired Financing Receivable Interest Income Recognized	45	22	172	73
Construction Real Estate
Impaired Financing Receivable, Average Recorded Investment	1,312	1,362	1,323	1,378
Impaired Financing Receivable Interest Income Recognized	43	38	122	109
Commercial Real Estate
Impaired Financing Receivable, Average Recorded Investment	8,532	9,513	9,905	9,681
Impaired Financing Receivable Interest Income Recognized	436	146	987	513
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	2,855	889	3,328	957
Impaired Financing Receivable Interest Income Recognized	44	19	153	56
Total loans
Impaired Financing Receivable, Average Recorded Investment	16,021	14,621	17,951	14,909
Impaired Financing Receivable Interest Income Recognized	$ 568	$ 225	$ 1,434	$ 751