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Shareholders' Equity (Narrative) (Details) - $ / shares | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Earnings Per Share [Line Items] |  |  |  |
Common stock, shares authorized | 50,000,000 |  |  |
Common stock, no par value | $ 0 |  |  |
Preferred stock, shares authorized | 10,000,000 |  |  |
Preferred stock, no par value | $ 0 |  |  |
Common Stock [Member] |  |  |  |
Earnings Per Share [Line Items] |  |  |  |
Shares, outstanding | 13,023,511 | 13,131,672 | 13,361,613 | 13,422,692
Series A preferred stock [Member] |  |  |  |
Earnings Per Share [Line Items] |  |  |  |
Preferred stock, shares issued | 600,000 | 600,000 |  |
Preferred stock, shares outstanding | 600,000 | 600,000 |  |

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