Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

	Three Months Ended 30-June				Six Months Ended 30-June
		2021		2020		2021		2020
Numerator:
Net earnings	$	11,257,479	$	20,557,047	$	23,386,194	$	21,981,496
Denominator:
Basic weighted-average shares outstanding		20,106,954		19,719,792		20,093,834		19,658,351
Effect of dilutive securities:
Employee stock options		784,817		439,593		826,048		349,502
Diluted weighted-average shares outstanding		20,891,771		20,159,385		20,919,882		20,007,853
Basic net earnings per share	$	0.56	$	1.04	$	1.16	$	1.12
Diluted net earnings per share	$	0.54	$	1.02	$	1.12	$	1.10

Schedule of Activity of Stock Option Plans

	Class A		Class C
Outstanding shares at December 31, 2019		16,107,779		2,500,887
Exercise of stock options		33,774		—
Stock dividends		404,839		61,720
Conversion of Class C to Class A		11,162		(11,162	)
Outstanding shares at June 30, 2020		16,557,554		2,551,445
Outstanding shares at December 31, 2020		16,595,783		2,679,603
Exercise of stock options		80,948		—
Stock dividends		836,263		131,554
Conversion of Class C to Class A		48,527		(48,527	)
Outstanding shares at June 30, 2021		17,561,521		2,762,630