Condensed Consolidated Statements Of Operations - USD ($)	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Revenue from External Customer [Line Items]
Revenues	$ 2,945,000	$ 2,604,816
Costs and expenses:
Cost of Goods and Services Sold	1,648,865	1,548,372
Marketing, general and administrative	1,100,132	1,108,100
Research and development	211,650	264,241
Total costs and expenses	2,960,647	2,920,713
Loss from operations	(15,647)	(315,897)
Other (expense) income:
Other Nonoperating Income (Expense)	0	0
Interest expense	(5,550)	(4,827)
Total other (expense) income	(5,550)	(4,827)
Net loss	(21,197)	(320,724)
Preferred Stock Dividends, Income Statement Impact	13,006	13,006
Net Income (Loss) Available to Common Stockholders, Basic	$ (34,203)	$ (333,730)
Net income (loss) per share
Earnings (Loss) Per Share, Basic	$ (0.00)	$ (0.05)
Earnings (Loss) Per Share, Diluted	$ (0.00)	$ (0.05)
Weighted average shares - basic	7,415,329	7,415,329
Weighted Average Number of Shares Outstanding, Diluted	7,415,329	7,415,329
Product [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,800,050	$ 2,442,337
Service [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 144,950	$ 162,479