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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, value at Dec. 31, 2021 $ 35,285,444 $ 5,733,130 $ 57,985,947 $ 18,070,448 $ 184,537,489 $ (1,845,624) $ 299,766,834
Net earnings 25,690,302 25,690,302
Other comprehensive income (31,140,725) (31,140,725)
Stock based compensation expense 929,692 929,692
Exercise of stock options 219,174 (75,742) 143,432
Sale of treasury stock (187,757) 5,249,054 5,061,297
Purchase of treasury stock 106,176 (7,770,081) (7,663,905)
Stock dividends 1,779,108 278,924 6,009,453 (8,067,485)
Conversion Class C to Class A 232,336 (232,336)
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 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
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)
Adoption of ASU 2016-13 (671,506) (671,506)
Vesting of restricted stock units 2,430 (2,430)
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