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Capital Stock (Tables) | 12 Months Ended
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Dec. 31, 2023
Equity [Abstract] |
Summary of Activities in Shares of Capital Stock | The following table summarizes the activity in shares of capital stock. Summary of Activities in Shares of Capital Stock
|  | Class A |  |  | Class C |
Outstanding shares at December 31, 2021 |  |  | 17,642,722 |  |  |  | 2,866,565 |
Exercise of stock options |  |  | 109,587 |  |  |  | - |
Vesting of restricted stock units |  |  | - |  |  |  | - |
Stock dividends |  |  | 889,554 |  |  |  | 139,462 |
Conversion of Class C to Class A |  |  | 116,168 |  |  |  | (116,168 | )
Outstanding shares at December 31, 2022 |  |  | 18,758,031 |  |  |  | 2,889,859 |
Common stock, shares, outstanding, beginning |  |  | 18,758,031 |  |  |  | 2,889,859 |
Exercise of stock options |  |  | 279,177 |  |  |  | - |
Vesting of restricted stock units |  |  | 1,215 |  |  |  | - |
Stock dividends |  |  | 949,980 |  |  |  | 141,594 |
Conversion of Class C to Class A |  |  | 59,599 |  |  |  | (59,599 | )
Outstanding shares at December 31, 2023 |  |  | 20,048,002 |  |  |  | 2,971,854 |
Common stock, shares, outstanding, ending |  |  | 20,048,002 |  |  |  | 2,971,854 |
Schedule of Earnings Per Share, Basic and Diluted | Earnings per share amounts have been retroactively adjusted for the effect of annual stock dividends. In accordance with GAAP, the basic and diluted earnings per share amounts were calculated as follows: Schedule of Earnings Per Share, Basic and Diluted
|  | 2023 |  |  | 2022 |
|  | Years Ended December 31, |
|  | 2023 |  |  | 2022 |
Numerator: |  |  |  |  |  |  |  |
Net earnings |  | $ | 14,495,058 |  |  | $ | 25,690,302 |
Denominator: |  |  |  |  |  |  |  |
Denominator for basic earnings per share-weighted-average shares |  |  | 22,083,772 |  |  |  | 22,187,410 |
Effect of dilutive securities |  |  |  |  |  |  |  |
Employee stock options |  |  | 594,196 |  |  |  | 848,323 |
Unvested restricted stock units |  |  | - |  |  |  | 395 |
Dilutive potential common shares |  |  | 594,196 |  |  |  | 848,718 |
Denominator for diluted earnings per share-adjusted weighted-average shares and assumed conversions |  |  | 22,677,968 |  |  |  | 23,036,128 |
Basic earnings per share |  | $ | 0.66 |  |  | $ | 1.16 |
Diluted earnings per share |  | $ | 0.64 |  |  | $ | 1.12 |

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