Condensed Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2017		$ 793	$ 14,954,563	$ (112,109)	$ (4,457,070)	$ 10,386,177
Balance, shares at Dec. 31, 2017		7,927,774
Stock options exercised		$ 1	10,499			10,500
Stock options exercised, shares		7,500
Stock options repurchased			(32,000)			(32,000)
Stock based compensation			4,860			4,860
Net loss					2,027,150	2,027,150
Balance at Jun. 30, 2018		$ 794	14,937,922	(112,109)	(2,429,920)	12,396,687
Balance, shares at Jun. 30, 2018		7,935,274
Balance at Mar. 31, 2018		$ 793	14,954,563	(112,109)	(4,542,857)	10,300,390
Balance, shares at Mar. 31, 2018		7,927,774
Stock options exercised		$ 1	10,499			10,500
Stock options exercised, shares		7,500
Stock options repurchased			(32,000)			(32,000)
Stock based compensation			4,860			4,860
Net loss					2,112,937	2,112,937
Balance at Jun. 30, 2018		$ 794	14,937,922	(112,109)	(2,429,920)	12,396,687
Balance, shares at Jun. 30, 2018		7,935,274
Balance at Dec. 31, 2018		$ 783	14,272,834	(37,308)	(3,638,978)	10,597,331
Balance, shares at Dec. 31, 2018		7,827,651
Treasury stock				(318,204)		(318,204)
Treasury stock cancelled		$ (10)	(355,502)	355,512
Treasury stock cancelled, shares		(93,396)
Stock options exercised		$ 1	5,650			5,651
Stock options exercised, shares		5,000
Stock options repurchased			(4,367)			(4,367)
Net loss					(946,633)	(946,633)
Balance at Jun. 30, 2019		$ 774	13,918,615		(4,585,611)	9,333,778
Balance, shares at Jun. 30, 2019		7,739,255
Balance at Mar. 31, 2019		$ 775	13,974,692		(3,951,880)	10,023,587
Balance, shares at Mar. 31, 2019		7,748,705
Treasury stock				(57,362)		(57,362)
Treasury stock cancelled		$ (2)	(57,360)	57,362
Treasury stock cancelled, shares		(14,450)
Stock options exercised		$ 1	5,650			5,651
Stock options exercised, shares		5,000
Stock options repurchased			(4,367)			(4,367)
Net loss					(633,731)	(633,731)
Balance at Jun. 30, 2019		$ 774	$ 13,918,615		$ (4,585,611)	$ 9,333,778
Balance, shares at Jun. 30, 2019		7,739,255