Schedule of Trading Securities (Details) - Equity Securities [Member] - USD ($)	9 Months Ended	12 Months Ended
	Mar. 31, 2023	Jun. 30, 2022
Financing Receivable, Past Due [Line Items]
Cost	$ 14,582,000	$ 11,150,000
Gross unrealized gain	3,547,000	1,474,000
Gross unrealized loss	(1,162,000)	(1,575,000)
Net unrealized loss	2,385,000	(101,000)
Fair value	$ 16,967,000	$ 11,049,000