Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member] Common Class A [Member]	Common Stock [Member] Common Class B [Member]	Additional Paid-in Capital [Member]	Treasury Stock, Common [Member] Common Class A [Member]	Treasury Stock, Common [Member] Common Class B [Member]	Treasury Stock, Common [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2021	$ 5,393,823	$ 1,465,522	$ 1,741,901			$ (1,981,113)	$ 28,019,768	$ 34,639,901
Stock Awards to Directors and Officers	957,728	0	0			0	0	957,728
Acquisition	1,000,012	0	0			0	0	1,000,012
Share repurchase	0	0	0			(144,139)	0	(144,139)
Net income	0	0	0			0	6,561,403	6,561,403
Balance at Dec. 31, 2022	$ 7,351,563	$ 1,465,522	$ 1,741,901			$ (2,125,252)	$ 34,581,171	$ 43,014,905
Balance (in shares) at Dec. 31, 2021	2,720,787	914,283	41,844			182,435	2,678,943	731,848
Class A shares issued to Directors and employees related to stock compensation plans (in shares)	32,200	0	0			0	32,200	0
Acquisition (in shares)	38,462	0	0			0	38,462	0
Share repurchase (in shares)	0	0	5,568	5,568	0	0	5,568	0
Share repurchase (in shares)	0	0	(5,568)	(5,568)	0	0	(5,568)	0
Balance (in shares) at Dec. 31, 2022	2,791,449	914,283	47,412			182,435	2,744,037	731,848
Stock Awards to Directors and Officers	$ 1,377,423	$ 0	$ 0			$ 0	$ 0	$ 1,377,423
Share repurchase	0	0	0			(111,774)	0	(111,774)
Net income	0	0	0			0	13,294,793	13,294,793
Stock issuance (see note 6)	150,000	0	0			0	0	150,000
Balance at Dec. 31, 2023	$ 8,878,986	$ 1,465,522	$ 1,741,901			$ (2,237,026)	$ 47,875,964	$ 57,725,347
Class A shares issued to Directors and employees related to stock compensation plans (in shares)	34,700	0	0			0	34,700	0
Share repurchase (in shares)	0	0	6,662	6,662	0	0	6,662	0
Share repurchase (in shares)	0	0	(6,662)	(6,662)	0	0	(6,662)	0
Stock issuance (see note 6) (in shares)	7,317	0	0			0	7,317	0
Stock forfeit (in shares)	(500)	0	0			0	(500)	0
Balance (in shares) at Dec. 31, 2023	2,832,966	914,283	54,074			182,435	2,778,892	731,848