Condensed Parent Company Only Financial Statements - Parent Company Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Interest income	$ 107,052	$ 97,482	$ 77,174
Interest expense	26,916	24,700	14,791
Net interest expense	80,136	72,782	62,383
Bargain purchase gain	123
Income tax expense	6,887	7,047	7,803
NET INCOME	27,545	28,904	20,929
COMPREHENSIVE INCOME	30,745	32,496	18,057
Parent Company
Interest income	27	25	20
Interest expense	899	1,079	887
Net interest expense	(872)	(1,054)	(867)
Dividends from Bank	34,000	23,000	6,000
Operating expenses	1,529	827	940
Income before income taxes and equity in undistributed income of the Bank	31,722	21,119	4,193
Income tax expense	292	358	437
Income before equity in undistributed income of the Bank	32,014	21,477	4,630
Equity in undistributed income of the Bank	(4,469)	7,427	16,299
NET INCOME	27,545	28,904	20,929
COMPREHENSIVE INCOME	$ 30,745	$ 32,496	$ 18,057