Schedule of Investment in Real Estate (Details) - USD ($)	Mar. 31, 2023	Jun. 30, 2022
Real Estate [Abstract]
Land	$ 22,998,000	$ 22,998,000
Building, improvements and equipment	73,239,000	70,933,000
Accumulated depreciation	(49,356,000)	(47,374,000)
Investment in real estate, gross	46,881,000	46,557,000
Land held for development	1,468,000	1,468,000
Investment in real estate, net	$ 48,349,000	$ 48,025,000