Note 9: Income Taxes: 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, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 2,024	$ 1,944	$ 4,083	$ 3,722
Other, net	(20)	27	(45)	(16)
Income Tax Expense, Actual	1,921	1,802	3,896	3,469
Increase (Decrease) in Taxes
Nontaxable Municipal Income	(113)	(77)	(226)	(149)
Current State and Local Tax Expense (Benefit)	87	101	196	224
Cash Surrender Value Of Bank-owned Life Insurance	(53)	(125)	(106)	(176)
Tax Credit Benefits	$ (4)	$ (68)	$ (6)	$ (136)