Sale of Assets - Additional Information (Detail) $ in Thousands			12 Months Ended
	Dec. 20, 2019 USD ($) a	Sep. 09, 2019 USD ($) a	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Sale of Assets [Line Items]
Pre-tax gain on the sale of property			$ 13	$ 192
Medical Office Building [Member] | Clanton, AL [Member]
Sale of Assets [Line Items]
Undeveloped land sold | a	4
Proceeds from sale	$ 204
Pre-tax gain on the sale of property				86
Undeveloped Land [Member] | Fulton, MO [Member]
Sale of Assets [Line Items]
Undeveloped land sold | a		11.4
Proceeds from sale		$ 348
Pre-tax gain on the sale of property				$ 100