Parent Company Financial Information - Schedule of condensed statements operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Condensed Income Statements, Captions [Line Items]
Interest on interest-bearing deposits with the Bank	$ 23,390	$ 17,914
Total interest income	25,846	19,817
Professional fees	1,064	451
Merger related expenses		3,294
Other expenses	2,361	1,611
Total other expense	18,992	15,392
Loss before income tax benefit and equity in undistributed net income of affiliates	4,726	941
Income tax benefit	947	(387)
NET INCOME	3,779	1,328
Comprehensive income	3,639	1,176
Parent Company
Condensed Income Statements, Captions [Line Items]
Interest on interest-bearing deposits with the Bank	52	8
Total interest income	52	8
Professional fees	147	50
Merger related expenses		532
Other expenses	44	12
Total other expense	191	594
Loss before income tax benefit and equity in undistributed net income of affiliates	(139)	(586)
Income tax benefit	(31)	(51)
Equity in undistributed net income of the Bank	3,887	1,863
NET INCOME	3,779	1,328
Comprehensive income	$ 3,639	$ 1,176