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, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Total loans
Impaired Financing Receivable, Average Recorded Investment	$ 19,681	$ 18,532	$ 17,976	$ 19,063
Impaired Financing Receivable Interest Income Recognized	600	456	1,720	866
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	3,356	3,514	3,054	3,614
Impaired Financing Receivable Interest Income Recognized	102	51	718	109
Construction Loan Payable
Impaired Financing Receivable, Average Recorded Investment	1,295	1,326	1,295	1,329
Impaired Financing Receivable Interest Income Recognized	41	40	142	79
Residential Real Estate
Impaired Financing Receivable, Average Recorded Investment	1,844	3,443	2,300	3,456
Impaired Financing Receivable Interest Income Recognized	28	60	61	127
Commercial Real Estate
Impaired Financing Receivable, Average Recorded Investment	13,186	10,249	11,327	10,664
Impaired Financing Receivable Interest Income Recognized	$ 429	$ 305	$ 799	$ 551