NOTE 20: Condensed Parent Company Only Financial Statements: Parent Company Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
TOTAL INTEREST INCOME	$ 97,482	$ 77,174	$ 61,488
TOTAL INTEREST EXPENSE	24,700	14,791	10,366
Interest Income (Expense), Net	72,782	62,383	51,122
Income Tax Expense (Benefit)	7,047	7,803	6,062
NET INCOME	28,904	20,929	15,552
COMPREHENSIVE INCOME	32,496	18,057	14,417
Parent Company
TOTAL INTEREST INCOME	25	20	17
TOTAL INTEREST EXPENSE	1,079	887	661
Interest Income (Expense), Net	(1,054)	(867)	(644)
SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Consolidated Subsidiaries	23,000	6,000	4,000
Operating Expenses	827	940	955
Income before income taxes and equity in undistributed income of the Bank	21,119	4,193	2,401
Income Tax Expense (Benefit)	358	437	455
Income before equity in undistributed income of the Bank	21,477	4,630	2,856
Equity in undistributed income of the Bank	7,427	16,299	12,696
NET INCOME	28,904	20,929	15,552
COMPREHENSIVE INCOME	$ 32,496	$ 18,057	$ 14,417