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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parentheticals) - Common Stock [Member] - $ / shares | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 09, 2016
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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 |

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