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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
Common Stock [Member]
Common Class A [Member]
Common Stock [Member]
Common Class C [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Treasury Stock, Common [Member]
Total
Balance, value at Dec. 31, 2022 $ 37,516,062 $ 5,779,718 $ 64,767,769 $ (13,070,277) $ 202,160,306 $ (4,366,651) $ 292,786,927
Net earnings 1,240,172 1,240,172
Other comprehensive income 4,127,558 4,127,558
Stock-based compensation expense 143,671 143,671
Sale of treasury stock (43,493) 620,651 577,158
Purchase of treasury stock (1,204,357) (1,204,357)
Conversion Class C to Class A 1,872 (1,872)
Adoption of ASU 2016-13 (671,506) (671,506)
Exercise of stock options 96,092 (62,073) 34,019
Balance, value at Mar. 31, 2023 37,614,026 5,777,846 64,805,874 (8,942,719) 202,728,972 (4,950,357) 297,033,642
Balance, value at Dec. 31, 2023 40,096,004 5,943,708 72,424,429 (6,885,558) 206,978,373 (5,661,737) 312,895,219
Net earnings 7,474,522 7,474,522
Other comprehensive income (895,098) (895,098)
Stock-based compensation expense 199,887 199,887
Vesting of restricted stock units 810 (810)
Sale of treasury stock 103,788 366,733 470,521
Purchase of treasury stock (41,077) (41,077)
Conversion Class C to Class A 348 (348)
Balance, value at Mar. 31, 2024 $ 40,097,162 $ 5,943,360 $ 72,727,294 $ (7,780,656) $ 214,452,895 $ (5,336,081) $ 320,103,974