CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($)	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Total
Beginning balance, shares at Jun. 30, 2019	12,071,139
Beginning balance, value at Jun. 30, 2019	$ 120,712	$ 48,893,172	$ (45,636,993)	$ 3,376,891
Issuance of common stock in private placement, shares	760,000
Issuance of common stock in private placement, value	$ 7,600	17,400		25,000
Exercise of stock options, shares	12,500
Exercise of stock options, value	$ 125	8,550		8,675
Issuance of common stock for services, shares	25,000
Issuance of common stock for services, value	$ 250	44,750		45,000
Stock-based compensation		76,505		76,505
Net income (loss)			(86,110)	(86,110)
Ending balance, shares at Sep. 30, 2019	12,868,639
Ending balance, value at Sep. 30, 2019	$ 128,687	49,040,377	(45,723,103)	3,445,961
Exercise of stock options, shares	11,408
Exercise of stock options, value	$ 114	(114)
Stock-based compensation		274,706		274,706
Net income (loss)			(550,825)	(550,825)
Ending balance, shares at Dec. 31, 2019	12,880,047
Ending balance, value at Dec. 31, 2019	$ 128,801	49,314,969	(46,273,928)	3,169,842
Beginning balance, shares at Jun. 30, 2020	13,191,789
Beginning balance, value at Jun. 30, 2020	$ 131,918	49,702,986	(47,063,143)	2,771,761
Stock-based compensation		71,146		71,146
Net income (loss)			793	793
Ending balance, shares at Sep. 30, 2020	13,191,789
Ending balance, value at Sep. 30, 2020	$ 131,918	49,774,132	(47,062,350)	2,843,700
Stock-based compensation		157,079		157,079
Net income (loss)			(213,454)	(213,454)
Ending balance, shares at Dec. 31, 2020	13,191,789
Ending balance, value at Dec. 31, 2020	$ 131,918	$ 49,931,211	$ (47,275,804)	$ 2,787,325