Statements of Stockholders' Equity - USD ($)	Common Stock Outstanding	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Total
Balance at Dec. 31, 2017	$ 4,512	$ 1,809,511	$ 1,679,813	$ (146,360)	$ 3,347,476
Balance, shares at Dec. 31, 2017	4,511,965
Stock compensation expense	$ 0	34,438	0	0	34,438
Stock compensation expense, shares	0
Stock issued for service	$ 0	14,097	0	0	14,097
Stock issued for service, shares	0
Shares repurchased into treasury	$ (48)	0	0	(112,192)	(112,240)
Shares repurchased into treasury, shares	(48,500)
Common stock issued to non-employee and employees and board member from treasury	$ 65	(62,091)	0	62,026	0
Common stock issued to non-employee and employees and board member from treasury, shares	65,204
Net income	$ 0	0	514,965	0	514,965
Balance at Dec. 31, 2018	$ 4,529	1,795,955	2,194,778	(196,526)	3,798,736
Balance, shares at Dec. 31, 2018	4,528,669
Stock compensation expense	$ 0	44,562	0	0	44,562
Stock compensation expense, shares	0
Stock issued for service	$ 0	9,450	0	0	9,450
Stock issued for service, shares	0
Shares repurchased into treasury	$ (25)	0	0	(51,475)	(51,500)
Shares repurchased into treasury, shares	(25,000)
Common stock issued to non-employee from treasury	$ 3	(2,373)	0	2,370	0
Common stock issued to non-employee from treasury, shares	3,119
Net income	$ 0	0	815,998	0	815,998
Balance at Dec. 31, 2019	$ 4,507	$ 1,847,594	$ 3,010,776	$ (245,631)	$ 4,617,246
Balance, shares at Dec. 31, 2019	4,506,788