Condensed Statements of Stockholders' Equity (Unaudited) - USD ($)	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 31, 2021	4,521,988
Balance at Dec. 31, 2021	$ 4,522	$ 1,988,137	$ 4,768,298	$ (233,599)	$ 6,527,358
Stock compensation expense	100	13,607	0	0	13,707
Net income (loss)	$ 0	0	1,261,840	0	1,261,840
Balance (in shares) at Mar. 31, 2022	4,621,988
Balance at Mar. 31, 2022	$ 4,622	2,001,744	6,030,138	(233,599)	7,802,905
Balance (in shares) at Dec. 31, 2022	4,621,988
Balance at Dec. 31, 2022	$ 4,622	2,207,030	6,297,639	(233,599)	8,275,692
Stock compensation expense	0	25,224	0	0	25,224
Net income (loss)	$ 0	0	335,861	0	335,861
Stock compensation expense (in shares)	0
Stock issued to employee from treasury (in shares)	10,000
Stock issued to employee from treasury	$ 10	(7,552)	0	7,542	0
Balance (in shares) at Mar. 31, 2023	4,631,988
Balance at Mar. 31, 2023	$ 4,632	$ 2,224,702	$ 6,633,500	$ (226,057)	$ 8,636,777