Note 8: Income Taxes: Schedule of Reconciliation of Income Tax Expense at the Statutory Rate to Actual Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 2,168	$ 2,069	$ 4,066	$ 3,842
Income Tax Expense, Actual	2,546	1,735	4,435	3,093
Increase (decrease) in taxes
Nontaxable Municipal Income	(114)	(129)	(225)	(261)
Current State and Local Tax Expense (Benefit)	137	60	243	108
Cash Surrender Value Of Bank-owned Life Insurance	(66)	(74)	(131)	(147)
Tax Credit Benefits	(225)	(93)	(449)	(187)
Adjustment of deferred tax asset for enacted changes in tax laws	1,124	0	1,124	0
Taxes, Other	$ (478)	$ (98)	$ (193)	$ (262)