STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
BALANCE at Dec. 31, 2016	$ 4,512	$ 1,809,511	$ 1,096,762	$ (146,360)	$ 2,764,425
BALANCE (in shares) at Dec. 31, 2016	4,511,965
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			583,051		583,051
BALANCE at Dec. 31, 2017	$ 4,512	1,809,511	1,679,813	(146,360)	3,347,476
BALANCE (in shares) at Dec. 31, 2017	4,511,965
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation expense	$ 0	34,438	0	0	34,438
Stock compensation expense (in shares)	0
Stock issued for service to non-employee	$ 0	14,097	0	0	14,097
Stock issued for service to non-employee (in shares)	0
Shares repurchased into treasury	$ (48)	0	0	(112,192)	(112,240)
Shares repurchased into treasury (in shares)	(48,500)
Common stock issued to non-employee and employees and board members from treasury	$ 65	(62,091)	0	(62,091)	0
Common stock issued to non-employee and employees and board members from treasury (in 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 (in shares) at Dec. 31, 2018	4,528,669