Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member] Common Class A [Member]	Common Stock [Member] Common Class B [Member]	Treasury Stock, Common [Member] Common Class A [Member]	Treasury Stock, Common [Member] Common Class B [Member]	Treasury Stock, Common [Member]	Common Stock Outstanding [Member] Common Class A [Member]	Common Stock Outstanding [Member] Common Class B [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2022	$ 7,351,563	$ 1,465,522			$ (2,125,252)			$ 1,741,901	$ 34,581,171	$ 43,014,905
Share-based compensation expense	928,788	0			0			0	0	928,788
Stock issuance (see note 6)	150,000	0			0			0	0	150,000
Net Income	$ 0	$ 0			0			0	7,242,815	7,242,815
Balance (in shares) at Dec. 31, 2022	2,791,449	914,283	47,412	182,435		2,744,037	731,848
Stock issuance (see note 6) (in shares)	7,317	0	0	0		7,317	0
Share repurchase	$ 0	$ 0			(111,775)			0	0	(111,775)
Balance at Jun. 30, 2023	$ 8,430,351	$ 1,465,522			(2,237,027)			1,741,901	41,823,985	51,224,732
Stock forfeit (in shares)	(500)	0	0	0		(500)	0
Share repurchase (in shares)	0	0	6,662	0			0
Share repurchase (in shares)						(6,662)
Stock awards issued to directors and officers (in shares)	34,700	0	0	0		34,700	0
Balance (in shares) at Jun. 30, 2023	2,832,966	914,283	54,074	182,435		2,778,892	731,848
Balance at Mar. 31, 2023	$ 7,844,228	$ 1,465,522			(2,196,437)			1,741,901	37,972,643	46,827,857
Share-based compensation expense	436,123	0			0			0	0	436,123
Stock issuance (see note 6)	150,000	0			0			0	0	150,000
Net Income	$ 0	$ 0			0			0	3,851,342	3,851,342
Balance (in shares) at Mar. 31, 2023	2,826,149	914,283	52,274	182,435		2,773,875	731,848
Stock issuance (see note 6) (in shares)	7,317	0	0	0		7,317	0
Share repurchase	$ 0	$ 0			(40,590)			0	0	(40,590)
Balance at Jun. 30, 2023	$ 8,430,351	$ 1,465,522			(2,237,027)			1,741,901	41,823,985	51,224,732
Stock forfeit (in shares)	(500)	0	0	0		(500)	0
Share repurchase (in shares)	0	0	1,800	0			0
Share repurchase (in shares)						(1,800)
Balance (in shares) at Jun. 30, 2023	2,832,966	914,283	54,074	182,435		2,778,892	731,848
Balance at Dec. 31, 2023	$ 8,878,986	$ 1,465,522			(2,237,026)			1,741,901	47,875,964	57,725,347
Share-based compensation expense	844,579	0			0			0	0	844,579
Stock issuance (see note 6)	30,011	0			0			0	0	30,011
Net Income	$ 0	$ 0			0			0	6,280,341	6,280,341
Balance (in shares) at Dec. 31, 2023	2,832,966	914,283	54,074	182,435		2,778,892	731,848
Stock issuance (see note 6) (in shares)	741	0	0	0		741	0
Share repurchase	$ 0	$ 0			(252,269)			0	0	(252,269)
Balance at Jun. 30, 2024	$ 9,753,576	$ 1,465,522			(2,489,295)			1,741,901	54,156,306	64,628,010
Share repurchase (in shares)	0	0	6,973	0			0
Share repurchase (in shares)						(6,973)
Stock awards issued to directors and officers (in shares)	36,400	0	0	0		36,400	0
Balance (in shares) at Jun. 30, 2024	2,870,107	914,283	61,047	182,435		2,809,060	731,848
Balance at Mar. 31, 2024	$ 9,491,340	$ 1,465,522			(2,489,295)			1,741,901	50,872,849	61,082,317
Share-based compensation expense	232,225	0			0			0	0	232,225
Stock issuance (see note 6)	30,011	0			0			0	0	30,011
Net Income	$ 0	$ 0			0			0	3,283,456	3,283,456
Balance (in shares) at Mar. 31, 2024	2,869,366	914,283	61,047	182,435		2,808,319	731,848
Stock issuance (see note 6) (in shares)	741	0	0	0		741	0
Balance at Jun. 30, 2024	$ 9,753,576	$ 1,465,522			$ (2,489,295)			$ 1,741,901	$ 54,156,306	$ 64,628,010
Balance (in shares) at Jun. 30, 2024	2,870,107	914,283	61,047	182,435		2,809,060	731,848