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Consolidated Statements of Stockholders' Equity - 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 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
Adoption of ASU 2016-13 (671,506) (671,506)
Net earnings 14,495,058 14,495,058
Other comprehensive income 6,184,719 6,184,719
Stock based compensation expense 601,362 601,362
Exercise of stock options 558,354 (423,967) 134,387
Vesting of restricted stock units 2,430 (2,430)
Sale of treasury stock 76,202 2,134,517 2,210,719
Purchase of treasury stock 583,156 (3,429,603) (2,846,447)
Stock dividends 1,899,960 283,188 6,822,337 (9,005,485)
Conversion Class C to Class A 119,198 (119,198)
Balance 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 26,535,768 26,535,768
Other comprehensive income (65,708) (65,708)
Stock based compensation expense 800,820 800,820
Exercise of stock options 400,144 403,334 413,835 (768,191) 449,122
Vesting of restricted stock units 3,570 (3,570)
Sale of treasury stock 214,816 1,005,748 1,220,564
Purchase of treasury stock (3,053,506) (3,053,506)
Stock dividends 2,009,762 297,156 5,848,037 (8,154,955)
Conversion Class C to Class A 532 (532)
Balance at Dec. 31, 2024 $ 42,510,012 $ 6,643,666 $ 79,698,367 $ (6,951,266) $ 225,359,186 $ (8,477,686) $ 338,782,279