Condensed Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2019	$ 5,207	$ 51,628,536	$ (45,809,581)	$ 5,824,162
Beginning balance, shares at Dec. 31, 2019	5,208,170
Stock issued for director services - vested	$ 15	78,432		78,447
Stock issued for director services, shares	14,813
Stock issued to escrow account - unvested	$ (15)	15
Stock issued to escrow account - unvested, shares	(14,813)
Stock option expense		27,068		27,068
Warrants exercised for cash	$ 44	282,306		282,350
Warrants exercised for cash, shares	43,993
Net loss			(942,521)	(942,521)
Ending balance, value at Mar. 31, 2020	$ 5,251	52,016,357	(46,752,102)	5,269,506
Ending balance, shares at Mar. 31, 2020	5,252,163
Stock issued for director services - vested	$ 15	89,674		89,689
Stock issued for director services, shares	15,073
Stock issued to escrow account - unvested	$ 6	(6)
Stock issued to escrow account - unvested, shares	5,335
Stock option expense		27,068		27,068
Warrants exercised for cash	$ 5	34,830		34,835
Warrants exercised for cash, shares	5,278
Net loss			(833,957)	(833,957)
Ending balance, value at Jun. 30, 2020	$ 5,277	52,167,923	(47,586,059)	4,587,141
Ending balance, shares at Jun. 30, 2020	5,277,849
Beginning balance, value at Dec. 31, 2020	$ 8,482	80,166,415	(51,022,606)	29,152,291
Beginning balance, shares at Dec. 31, 2020	8,482,387
Stock issued for director services - vested	$ 11	122,435		122,446
Stock issued for director services, shares	10,548
Stock issued to escrow account - unvested	$ (12)	12
Stock issued to escrow account - unvested, shares	(24,253)
Stock option expense		68,944		68,944
Warrants exercised for cash	$ 389	2,469,155		2,469,544
Warrants exercised for cash, shares	388,638
Stock option exercise (cashless)	$ 1	(46,963)		(46,962)
Stock option exercise (cashless), shares	1,063
Net loss			(1,250,809)	(1,250,809)
Ending balance, value at Mar. 31, 2021	$ 8,871	82,779,998	(52,273,415)	30,515,454
Ending balance, shares at Mar. 31, 2021	8,858,383
Beginning balance, value at Dec. 31, 2020	$ 8,482	80,166,415	(51,022,606)	29,152,291
Beginning balance, shares at Dec. 31, 2020	8,482,387
Ending balance, value at Jun. 30, 2021	$ 8,898	83,223,822	(53,915,203)	29,317,517
Ending balance, shares at Jun. 30, 2021	8,897,955
Beginning balance, value at Mar. 31, 2021	$ 8,871	82,779,998	(52,273,415)	30,515,454
Beginning balance, shares at Mar. 31, 2021	8,858,383
Stock issued for director services - vested	$ 12	246,322		246,334
Stock issued for director services, shares	12,156
Stock issued to escrow account - unvested	$ (14)	14
Stock issued to escrow account - unvested, shares	(1,512)
Stock option expense		57,644		57,644
Warrants exercised for cash	$ 28	173,922		173,950
Warrants exercised for cash, shares	27,611
Stock option exercise (cashless)	$ 1	(34,078)		(34,077)
Stock option exercise (cashless), shares	1,317
Net loss			(1,641,788)	(1,641,788)
Ending balance, value at Jun. 30, 2021	$ 8,898	$ 83,223,822	$ (53,915,203)	$ 29,317,517
Ending balance, shares at Jun. 30, 2021	8,897,955