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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 09, 2015
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Common Shares Class A Non-Voting [Member] |  |  |
Common stock, par value (in dollars per share) | $ 1.00 |  |
Common stock, shares authorized (in shares) | 15,000,000 |  |
Common Stock Shares Issued (in shares) | 8,577,620 | 8,519,129 |
Common Shares Class B Voting [Member] |  |  |
Common stock, par value (in dollars per share) | $ 1.00 |  |
Common stock, shares authorized (in shares) | 1,040,000 |  |
Common Stock Shares Issued (in shares) | 881,452 | 881,452 |
Common Stock [Member] | 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) | 8,606,597 | 8,548,106 |
Shares available for purchase through retirement plans (in shares) | 200,000 |  |
Shares authorized for issuance of grants under equity compensation plan (in shares) |  |  | 331,500
Common Stock [Member] | 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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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The shares or units in an ESOP trust that have been assigned to individual participant accounts based on a known formula. IRS rules require allocations to be nondiscriminatory generally based on compensation, length of service, or a combination of both. For any particular participant such shares or units may be vested, unvested, or partially vested. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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