Condensed Consolidated Statements Of Operations - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Revenue from External Customer [Line Items]
Revenues	$ 2,869,237	$ 3,005,489	$ 5,814,237	$ 5,610,305
Costs and expenses:
Cost of Goods and Services Sold	1,607,810	1,752,245	3,256,675	3,300,617
Marketing, general and administrative	1,184,236	1,061,916	2,284,368	2,170,016
Research and development	147,715	191,325	359,365	455,566
Total costs and expenses	2,939,761	3,005,486	5,900,408	5,926,199
(Loss) income from operations	(70,524)	3	(86,171)	(315,894)
Other (expense) income:
Other Nonoperating Income (Expense)	0	0	0	0
Interest expense	(5,797)	(6,046)	(11,347)	(10,873)
Total other (expense) income	(5,797)	(6,046)	(11,347)	(10,873)
Net loss	(76,321)	(6,043)	(97,518)	(326,767)
Preferred Stock Dividends, Income Statement Impact	13,006	13,006	26,012	26,012
Net Income (Loss) Available to Common Stockholders, Basic	$ (89,327)	$ (19,049)	$ (123,530)	$ (352,779)
Net income (loss) per share
Earnings (Loss) Per Share, Basic	$ (0.01)	$ 0	$ (0.02)	$ (0.05)
Earnings (Loss) Per Share, Diluted	$ (0.01)	$ 0	$ (0.02)	$ (0.05)
Weighted average shares - basic	7,415,329	7,415,329	7,415,329	7,415,329
Weighted Average Number of Shares Outstanding, Diluted	7,415,329	7,415,329	7,415,329	7,415,329
Product [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,734,397	$ 2,854,450	$ 5,534,447	$ 5,296,787
Service [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 134,840	$ 151,039	$ 279,790	$ 313,518