Consolidated Statements Of Operations - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 10,471,617	$ 9,400,031
Total costs and expenses	10,505,314	10,799,694
Net Income (Loss) Available to Common Stockholders, Basic	(103,445)	(702,021)
Net loss	(52,023)	(650,280)
Costs and expenses:
Cost of Goods and Services Sold	6,044,399	5,197,866
Marketing, general and administrative	3,570,433	3,874,498
Research and development	890,482	1,122,324
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	0	605,006
Total costs and expenses	10,505,314	10,799,694
Loss from operations	(33,697)	(1,399,663)
Other (expense) income:
Other Nonoperating Income (Expense)	2,530	759,371
Interest income	985	3,592
Interest expense	(21,841)	(13,580)
Total other (expense) income	(18,326)	749,383
Net loss	(52,023)	(650,280)
Preferred Stock Dividends, Income Statement Impact	51,422	51,741
Net Income (Loss) Available to Common Stockholders, Basic	$ (103,445)	$ (702,021)
Net income (loss) per share
Earnings (Loss) Per Share, Basic	$ (0.01)	$ (0.09)
Earnings (Loss) Per Share, Diluted	$ (0.01)	$ (0.09)
Weighted average shares - basic	7,415,329	7,415,329
Weighted average shares - diluted	7,415,329	7,415,329
Product [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 9,547,606	$ 8,437,672
Service [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 924,011	$ 962,359