Premises and Equipment - Components (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022
Property, Plant and Equipment [Line Items]
Gross value	$ 16,016	$ 16,523
Accumulated depreciation	(4,463)	(4,827)
Net book value	11,553	11,696
Land
Property, Plant and Equipment [Line Items]
Gross value	2,156	2,156
Office buildings and improvements
Property, Plant and Equipment [Line Items]
Gross value	11,391	11,769
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Gross value	2,411	2,540
Automobiles
Property, Plant and Equipment [Line Items]
Gross value	$ 58	$ 58