Schedule of Earning Per Share, Basic and Diluted (Details) - USD ($)		3 Months Ended				6 Months Ended
		Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net earnings		$ 3,574,449	$ 3,228,718	$ 11,257,479	$ 12,128,715	$ 6,803,167	$ 23,386,194
Basic weighted-average shares outstanding	[1]	21,184,688		21,098,789		21,282,747	21,085,669
Employee stock options		833,142		824,058		851,132	867,350
Diluted weighted-average shares outstanding	[1]	22,017,830		21,922,847		22,133,879	21,953,019
Basic net earnings per share	[1]	$ 0.17		$ 0.53		$ 0.32	$ 1.11
Diluted net earnings per share	[1]	$ 0.16		$ 0.51		$ 0.31	$ 1.07

[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.