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, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 1,944	$ 2,168	$ 3,722	$ 4,066
Income Tax Expense, Actual	1,802	2,546	3,469	4,435
Increase (decrease) in taxes
Nontaxable Municipal Income	(77)	(114)	(149)	(225)
Current State and Local Tax Expense (Benefit)	101	137	224	243
Cash Surrender Value Of Bank-owned Life Insurance	(125)	(66)	(176)	(131)
Tax Credit Benefits	(68)	(225)	(136)	(449)
Taxes, Other	$ 27	$ (478)	$ (16)	$ (193)