Statements of Stockholders' Equity - USD ($)	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 31, 2023	4,634,865
Balance at Dec. 31, 2023	$ 4,635	$ 2,346,483	$ 7,771,655	$ (223,208)	$ 9,899,565
Stock compensation expense	0	122,441	0	0	122,441
Cash dividends	$ 0	0	(139,053)	0	(139,053)
Stock issued for service from treasury (in shares)	703
Stock issued for service from treasury	$ 1	1,926	0	773	2,700
Net income	$ 0	0	1,576,428	0	$ 1,576,428
Exercise of employee stock options (in shares)					(0)
Balance (in shares) at Dec. 31, 2024	4,635,568
Balance at Dec. 31, 2024	$ 4,636	2,470,850	9,209,030	(222,435)	$ 11,462,081
Stock compensation expense	0	105,183	0	0	105,183
Cash dividends	0	0	(371,240)	0	(371,240)
Net income	$ 0	0	1,626,620	0	1,626,620
Issuance of common stock out of treasury (in shares)	3,955
Issuance of common stock out of treasury	$ 4	10,001	0	3,955	$ 13,960
Exercise of employee stock options (in shares)	2,000				2,000
Exercise of employee stock options	$ 2	5,721	0	2,137	$ 7,860
Balance (in shares) at Dec. 31, 2025	4,641,523
Balance at Dec. 31, 2025	$ 4,642	$ 2,591,755	$ 10,464,410	$ (216,343)	$ 12,844,464