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Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Earnings Per Share [Abstract]            
Net earnings $ 6,352,706 $ 1,240,172 $ 3,574,449 $ 3,228,718 $ 7,592,878 $ 6,803,167
Basic weighted-average shares outstanding [1] 22,005,332   22,233,852   22,066,991 22,331,911
Employee stock options 563,301   874,799   550,897 893,689
Diluted weighted-average shares outstanding [1] 22,568,633   23,108,651   22,617,888 23,225,600
Basic net earnings per share [1] $ 0.29   $ 0.16   $ 0.34 $ 0.30
Diluted net earnings per share [1] $ 0.28   $ 0.15   $ 0.34 $ 0.29
[1] Net earnings per share amounts have been adjusted retroactively for the effect of annual stock dividends. The weighted-average shares outstanding includes the weighted-average Class A common shares and the weighted-average Class C common shares determined on an equivalent Class A common stock basis. Net earnings per common share represent net earnings per equivalent Class A common share.