CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
Revenues	$ 2,864,900	$ 2,508,600	$ 8,623,500	$ 7,245,100
Cost of revenues	1,318,300	1,145,700	4,154,600	3,419,400
Gross profit	1,546,600	1,362,900	4,468,900	3,825,700
Operating expenses:
General and administrative	1,610,400	1,385,600	4,442,300	2,441,700
Selling	1,054,000	1,386,100	2,996,800	2,658,900
Research and development	624,500	450,000	2,141,300	1,024,000
Total operating expenses	3,288,900	3,221,700	9,580,400	6,124,600
Loss from operations	(1,742,300)	(1,858,800)	(5,111,500)	(2,298,900)
Other income (expense):
Other income (expense), net	(102,700)	6,100	363,500	22,300
Interest income	400	22,500	49,800	71,400
Total other income (expense), net	(102,300)	28,600	413,300	93,700
Loss from continuing operations before income tax benefit	(1,844,600)	(1,830,200)	(4,698,200)	(2,205,200)
Income tax benefit, current	(95,100)	0	(95,100)	0
Income tax benefit, deferred	(222,100)	(378,200)	(959,400)	(472,300)
Total Income tax benefit	(317,200)	(378,200)	(1,054,500)	(472,300)
Loss from continuing operations	(1,527,400)	(1,452,000)	(3,643,700)	(1,732,900)
Discontinued operations (Note 9):
Gain (loss) from discontinued operations, net of tax	(7,600)	16,400	3,400	(578,500)
Net loss	(1,535,000)	(1,435,600)	(3,640,300)	(2,311,400)
Comprehensive loss:
Unrealized holding loss on investment securities, net of tax	(4,700)	0	(5,100)	0
Foreign currency translation adjustment	(194,500)	0	(90,500)	0
Comprehensive loss	(199,200)	0	(95,600)	0
Total comprehensive loss	$ (1,734,200)	$ (1,435,600)	$ (3,735,900)	$ (2,311,400)
Basic loss per common share:
Continuing operations	$ (0.23)	$ (0.51)	$ (0.56)	$ (0.61)
Discontinued operations	(0.00)	0.01	0.00	(0.20)
Consolidated operations	$ (0.23)	$ (0.50)	$ (0.56)	$ (0.81)