Schedule of Activity of Stock Option Plans (Details) - USD ($)	9 Months Ended
	Sep. 30, 2023		Sep. 30, 2022
Common Class A [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares, outstanding, beginning	976,605		1,024,351
Weighted average exercise price, outstanding, beginning	$ 4.56	[1]	$ 4.38	[2]
Number of Shares, adjustment for effect of stock dividends	38,266		47,780
Number of shares, granted	16,000		4,000
Number of shares, exercised	(233,180)		(71,330)
Number of shares, cancelled			(1,591)
Number of shares, outstanding, ending	797,691		1,003,210
Weighted average exercise price, outstanding, ending	$ 4.78	[1]	$ 4.58	[2]
Number of shares, options exercisable	770,066		978,835
Weighted average exercise price, options exercisable	$ 4.73	[1]	$ 4.49	[2]
Number of shares, available options for future grant	171,386		1,239,795
Weighted average contractual term of options outstanding	4 years 8 months 8 days		4 years 3 months 25 days
Weighted average contractual term of options exercisable	4 years 6 months 10 days		4 years 2 months 8 days
Aggregated intrinsic value of options outstanding	$ 2,438,675	[3]	$ 1,775,100	[4]
Aggregated intrinsic value of options exercisable	$ 2,398,360	[3]	$ 1,819,950	[4]
Common Class C [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares, outstanding, beginning	1,157,203		821,146
Weighted average exercise price, outstanding, beginning	$ 5.31	[1]	$ 5.26	[2]
Number of Shares, adjustment for effect of stock dividends	57,859		41,057
Number of shares, granted
Number of shares, exercised
Number of shares, cancelled
Number of shares, outstanding, ending	1,215,062		862,203
Weighted average exercise price, outstanding, ending	$ 5.31	[1]	$ 5.26	[2]
Number of shares, options exercisable	1,141,312		804,703
Weighted average exercise price, options exercisable	$ 5.25	[1]	$ 5.04	[2]
Number of shares, available options for future grant	834,750		17,523
Weighted average contractual term of options outstanding	6 years 1 month 24 days		6 years 9 months
Weighted average contractual term of options exercisable	6 years 10 days		6 years 7 months 17 days
Aggregated intrinsic value of options outstanding	$ 3,074,037	[3]	$ 939,395	[4]
Aggregated intrinsic value of options exercisable	$ 2,955,012	[3]	$ 1,055,445	[4]

[1] Adjusted for the effect of annual stock dividends.

[2] Adjusted for the effect of annual stock dividends.

[3] The Company used a stock price of $7.84 as of September 30, 2023 to derive intrinsic value.

[4] The Company used a stock price of $6.35 as of September 30, 2022 to derive intrinsic value.