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v3.23.2

Changes in Stock (Details) - shares | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Class of Stock [Line Items] |  |  |  |
Common stock, shares issued (in shares) | 5,262,000 | 4,530,000 | 4,937,000 | 4,138,000
Common Stock Class A [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Common stock, shares issued (in shares) | 4,261,005 |  | 3,935,581 |
Stock Issued During Period, Shares, New Issues | 0 | 16,000 |  |
Stock issued for compensation | 106,000 | 81,000 |  |
Acquisition of Class A shares | 0 | 0 |  |
Treasury Stock, Shares, Acquired | 325,000 | 392,000 |  |
Shares, Issued | 53,864,000 | 53,742,000 | 53,758,000 | 53,170,000
Common Stock Class A [Member] | Stock Investment Plan |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues | 0 | 475,000 |  |
Common Stock Class B [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Common stock, shares issued (in shares) | 1,001,714 |  | 1,001,714 |
Stock Issued During Period, Shares, New Issues | 0 | 0 |  |
Stock issued for compensation | 0 | 0 |  |
Acquisition of Class A shares | 0 | 0 |  |
Shares, Issued | 1,002,000 | 1,002,000 | 1,002,000 | 1,002,000
Common Stock Class B [Member] | Stock Investment Plan |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues | 0 | 0 |  |
Treasury Stock, Common [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues | 0 | 0 |  |
Stock issued for compensation | 0 | 0 |  |
Treasury Stock, Common [Member] | Stock Investment Plan |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues | 0 | 0 |  |

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