CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)	6 Months Ended		12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
Revenues	$ 5,237,800	$ 5,758,600	$ 11,400,500	$ 9,775,200
Cost of revenues	2,919,700	2,836,300	5,663,800	4,799,800
Gross profit	2,318,100	2,922,300	5,736,700	4,975,400
Operating expenses:
General and administrative	2,658,800	2,831,900	5,816,600	4,028,500
Selling	2,349,000	1,942,800	4,310,800	4,031,900
Research and development	1,395,800	1,516,800	2,873,300	1,623,800
Impairment of goodwill and intangible asset	51,500	0	4,280,100	0
Total operating expenses	6,455,100	6,291,500	17,280,800	9,684,200
Loss from operations	(4,137,000)	(3,369,200)	(11,544,100)	(4,708,800)
Other income:
Other income, net	63,900	466,200	185,100	571,600
Interest income	0	49,400	77,300	82,200
Total other income, net	63,900	515,600	262,400	653,800
Loss from continuing operations before income tax expense (benefit)	(4,073,100)	(2,853,600)	(11,281,700)	(4,055,000)
Income tax (benefit), current	0	0	(99,200)	0
Income tax (benefit), expense, deferred	0	(737,300)	2,490,000	(945,000)
Total Income tax (benefit) expense	0	737,300	2,390,800	(945,000)
Loss from continuing operations	(4,073,100)	(2,116,300)	(13,672,500)	(3,110,000)
Discontinued operations:
(Loss) Gain from discontinued operations, net of tax	(6,300)	11,000	4,400	(562,500)
Net loss	(4,079,400)	(2,105,300)	(13,668,100)	(3,672,500)
Comprehensive gain (loss):
Unrealized holding gain (loss) on investment securities, net of tax	8,600	(400)	(10,200)	0
Foreign currency translation gain (loss)	88,600	104,000	(86,200)	(9,200)
Comprehensive gain (loss)	97,200	103,600	(96,400)	(9,200)
Total comprehensive loss	$ (3,982,200)	$ (2,001,700)	$ (13,764,500)	$ (3,681,700)
Continuing operations	$ (0.58)	$ (0.33)	$ (2.06)	$ (0.97)
Discontinued operations	0.00	0.00	0.00	(0.18)
Consolidated operations	$ (0.58)	$ (0.33)	$ (2.06)	$ (1.15)