CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parentheticals) - Common Stock [Member] - $ / shares	Jun. 30, 2025	Jun. 30, 2024	Dec. 09, 2016
Common Shares Class A Non-Voting [Member]
Common stock, par value (in Dollars per share)	$ 1	$ 1
Common stock, shares authorized (in Shares)	15,000,000	15,000,000
Common Stock Shares Issued (in Shares)	9,458,054	9,443,071
Shares authorized for issuance of grants under equity compensation plan (in Shares)			331,500
Common Shares Class B Voting [Member]
Common stock, par value (in Dollars per share)	$ 1	$ 1
Common stock, shares authorized (in Shares)	1,040,000	1,040,000
Common Stock Shares Issued (in Shares)	881,452	881,452