Note 21: Quarterly Financial Data (unaudited): Schedule of Quarterly Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
TOTAL INTEREST INCOME													$ 61,488	$ 56,317	$ 55,301
TOTAL INTEREST EXPENSE													10,366	9,365	8,766
NET INTEREST INCOME													51,122	46,952	46,535
Provision for loan losses													2,340	2,494	3,185
TOTAL NONINTEREST INCOME													11,084	9,758	8,659
TOTAL NONINTEREST EXPENSE													38,252	32,686	32,285
NET INCOME													$ 15,552	$ 14,848	$ 13,668
Quarterly operating data
TOTAL INTEREST INCOME	$ 16,345	$ 14,955	$ 15,083	$ 15,105	$ 14,261	$ 13,849	$ 14,235	$ 13,972	$ 13,816	$ 13,909	$ 14,357	$ 13,219
TOTAL INTEREST EXPENSE	2,804	2,523	2,510	2,529	2,423	2,341	2,335	2,266	2,270	2,211	2,195	2,090
NET INTEREST INCOME	13,541	12,432	12,573	12,576	11,838	11,508	11,900	11,706	11,546	11,698	12,162	11,129
Provision for loan losses	383	376	656	925	817	563	496	618	659	837	862	827
TOTAL NONINTEREST INCOME	2,884	2,925	2,700	2,575	2,587	2,178	2,791	2,202	2,398	2,094	2,187	1,980
TOTAL NONINTEREST EXPENSE	10,823	9,564	8,706	9,159	8,273	8,257	8,166	7,990	8,002	8,091	8,590	7,602
Income before income taxes	5,219	5,417	5,911	5,067	5,335	4,866	6,029	5,300	5,283	4,864	4,897	4,680
Income Tax Expense (Benefit)	1,506	1,463	1,735	1,358	1,653	1,544	1,820	1,665	1,718	1,497	1,460	1,381
NET INCOME	$ 3,713	$ 3,954	$ 4,176	$ 3,709	$ 3,682	$ 3,322	$ 4,209	$ 3,635	$ 3,565	$ 3,367	$ 3,437	$ 3,299