Note 10: Employee Benefits: Schedule of Share-based Compensation, Stock Options, Activity (Details) - $ / shares	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Options Outstanding at Beginning of Year
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased	$ 8.74	$ 8.28	$ 7.29
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options	54,000	69,000	100,000
Options Granted
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased			$ 17.55
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options			10,000
Options Exercised
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased	$ 6.08	$ 6.38	$ 8.10
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options	(10,000)	(15,000)	(41,000)
Options Outstanding at Year End
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased	$ 9.35	$ 8.74	$ 8.28
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options	44,000	54,000	69,000
Options Exercisable at Year End
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased	$ 8.06	$ 7.03	$ 6.39
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options	38,000	44,000	55,000