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Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
Common Stock [Member]
Common Class A [Member]
Common Stock [Member]
Common Class B [Member]
Treasury Stock, Common [Member]
Common Class A [Member]
Treasury Stock, Common [Member]
Common Class B [Member]
Treasury Stock, Common [Member]
Common Stock Outstanding [Member]
Common Class A [Member]
Common Stock Outstanding [Member]
Common Class B [Member]
Common Stock Including Additional Paid in Capital [Member]
Common Class A [Member]
Common Stock Including Additional Paid in Capital [Member]
Common Class B [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Balance at Dec. 31, 2021 $ 5,393,823 $ 1,465,522     $ (1,981,113)         $ 1,741,901 $ 28,019,768 $ 34,639,901
Share-based compensation expense 16,307 0     0         0 0 16,307
Stock awards 882,000 0     0         0 0 882,000
Repurchase of shares 0 0     (65,709)         0 0 (65,709)
Net Income 0 0     0         0 1,065,875 1,065,875
Balance (in shares) at Dec. 31, 2021     41,844 182,435   2,678,943 731,848 2,720,787 914,283      
Stock awards to directors and officers (in shares)       32,200 32,200      
Repurchase of shares (in shares)     2,366          
Repurchase of shares (in shares)           (2,366)            
Balance at Mar. 31, 2022 6,292,130 1,465,522     (2,046,822)         1,741,901 29,085,643 36,538,374
Stock Awards (in shares)       32,200 32,200      
Balance (in shares) at Mar. 31, 2022     44,210 182,435   2,708,777 731,848 2,752,987 914,283      
Balance at Dec. 31, 2022 7,351,563 1,465,522     (2,125,252)         1,741,901 34,581,171 43,014,905
Share-based compensation expense 13,763 0     0         0 0 13,763
Stock awards 478,902 0     0         0 0 478,902
Repurchase of shares 0 0     (71,185)         0 0 (71,185)
Net Income $ 0 $ 0     0         0 3,391,473 3,391,473
Balance (in shares) at Dec. 31, 2022 2,791,449 914,283 47,412 182,435   2,744,037 731,848          
Stock awards to directors and officers (in shares) 34,700 0 0 0   34,700 0          
Repurchase of shares (in shares) 0 0 4,862 0     0          
Repurchase of shares (in shares)           (4,862)            
Balance at Mar. 31, 2023 $ 7,844,228 $ 1,465,522     $ (2,196,437)         $ 1,741,901 $ 37,972,643 $ 46,827,857
Stock Awards (in shares) 34,700 0 0 0   34,700 0          
Balance (in shares) at Mar. 31, 2023 2,826,149 914,283 52,274 182,435   2,773,875 731,848