Consolidated Statements Of Operations - USD ($)	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 2,675,069	$ 2,413,794
Net Income (Loss) Available to Common Stockholders, Basic	304,214	(209,523)
Costs and expenses:
Cost of Goods and Services Sold	1,663,874	1,503,869
Marketing, general and administrative	904,491	892,177
Research and development	291,189	209,322
Total costs and expenses	2,859,554	2,605,368
Loss from operations	(184,485)	(191,574)
Other (expense) income:
Other Nonoperating Income (Expense)	506,305	0
Interest income	97	539
Interest expense	(4,697)	(5,518)
Total other (expense) income	501,705	(4,979)
Net income (loss)	317,220	(196,553)
Preferred Stock Dividends, Income Statement Impact	13,006	12,970
Net Income (Loss) Available to Common Stockholders, Basic	$ 304,214	$ (209,523)
Net income (loss) per share
Earnings (Loss) Per Share, Basic	$ 0.04	$ (0.03)
Earnings (Loss) Per Share, Diluted	$ 0.02	$ (0.03)
Weighted average shares - basic	7,415,329	7,415,329
Weighted Average Number of Shares Outstanding, Diluted	12,876,202	7,415,329
Product [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 2,479,777	$ 2,184,256
Service [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 195,292	$ 229,538