Premises and Equipment - Components (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023
Property, Plant and Equipment [Line Items]
Gross value	$ 11,643	$ 13,189
Accumulated depreciation	(3,975)	(4,135)
Net book value	7,668	9,054
Land
Property, Plant and Equipment [Line Items]
Gross value	1,441	1,778
Office buildings and improvements
Property, Plant and Equipment [Line Items]
Gross value	7,878	9,080
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Gross value	2,266	2,273
Automobiles
Property, Plant and Equipment [Line Items]
Gross value	$ 58	$ 58