Summary of Activities in Shares of Capital Stock (Details) - shares	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Common Class A [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common stock, shares, outstanding, beginning	18,758,031	17,642,722
Exercise of stock options	239,191	69,096
Vesting of restricted stock units	810
Stock dividends	949,980	889,554
Conversion of Class C to Class A	59,599	116,168
Common stock, shares, outstanding, ending	20,007,611	18,717,540
Common Class C [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common stock, shares, outstanding, beginning	2,889,859	2,866,565
Exercise of stock options
Vesting of restricted stock units
Stock dividends	141,594	139,462
Conversion of Class C to Class A	(59,599)	(116,168)
Common stock, shares, outstanding, ending	2,971,854	2,889,859