NOTE 12: Income Taxes: Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 8,074	$ 7,565	$ 7,536
Tax benefit (expense)	1,033	674	(475)
Actual Tax Provision	7,803	6,062	6,682
Increase (reduction) in taxes resulting from
Nontaxable Municipal Income	(441)	(513)	(567)
Current State and Local Tax Expense (Benefit)	553	215	624
Cash Surrender Value of Life Insurance	(266)	(397)	(325)
Tax credit benefits	(871)	(367)	(286)
Adjustment of Deferred Tax Asset for Enacted Changes in Tax Laws	1,124	0	0
Tax benefit (expense)	$ (370)	$ (441)	$ (300)