Consolidated Statements Of Operations - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Revenue from External Customer [Line Items]
Net Income (Loss) Available to Common Stockholders, Basic	$ (19,049)	$ (66,160)	$ (352,779)	$ 238,054
Revenues	$ 3,005,489	$ 2,700,757	$ 5,610,305	$ 5,375,826
Weighted average shares - basic	7,415,329	7,415,329	7,415,329	7,415,329
Cost of Goods and Services Sold	$ 1,752,245	$ 1,539,563	$ 3,300,617	$ 3,203,437
Research and development	191,325	260,439	455,566	551,628
Other Nonoperating Income (Expense)	0	0	0	506,305
Interest Expense	6,046	4,101	10,873	8,701
Income (loss) from operations	3	(49,053)	(315,894)	(233,538)
Net (loss) income	(6,043)	(53,154)	(326,767)	264,066
Preferred Stock Dividends, Income Statement Impact	13,006	13,006	26,012	26,012
Marketing, general and administrative	1,061,916	949,808	2,170,016	1,854,299
Costs and Expenses	3,005,486	2,749,810	5,926,199	5,609,364
Nonoperating Income (Expense)	$ (6,046)	$ (4,101)	$ (10,873)	$ 497,604
Earnings (Loss) Per Share, Basic	$ (0.00)	$ (0.01)	$ (0.05)	$ 0.03
Weighted Average Number of Shares Outstanding, Diluted	7,415,329	7,415,329	7,415,329	13,049,616
Earnings (Loss) Per Share, Diluted	$ (0.00)	$ (0.01)	$ (0.05)	$ 0.02
Costs and expenses:
Cost of Goods and Services Sold	$ 1,752,245	$ 1,539,563	$ 3,300,617	$ 3,203,437
Marketing, general and administrative	1,061,916	949,808	2,170,016	1,854,299
Research and development	191,325	260,439	455,566	551,628
Total costs and expenses	3,005,486	2,749,810	5,926,199	5,609,364
Income (loss) from operations	3	(49,053)	(315,894)	(233,538)
Other (expense) income:
Other Nonoperating Income (Expense)	0	0	0	506,305
Interest expense	(6,046)	(4,101)	(10,873)	(8,701)
Total other (expense) income	(6,046)	(4,101)	(10,873)	497,604
Net (loss) income	(6,043)	(53,154)	(326,767)	264,066
Preferred Stock Dividends, Income Statement Impact	13,006	13,006	26,012	26,012
Net Income (Loss) Available to Common Stockholders, Basic	$ (19,049)	$ (66,160)	$ (352,779)	$ 238,054
Net income (loss) per share
Earnings (Loss) Per Share, Basic	$ (0.00)	$ (0.01)	$ (0.05)	$ 0.03
Earnings (Loss) Per Share, Diluted	$ (0.00)	$ (0.01)	$ (0.05)	$ 0.02
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	13,049,616
Geographic Concentration Risk [Member]
Revenue from External Customer [Line Items]
Revenues				$ 5,376,000
Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Revenue from External Customer [Line Items]
Revenues	$ 3,005,000	$ 2,701,000	$ 5,610,000	5,376,000
International [Member] | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Revenue from External Customer [Line Items]
Revenues	1,271,000	1,341,000	2,256,000	2,391,000
Product [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,854,450	2,521,467	5,296,787	5,001,274
Service [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 151,039	$ 179,290	$ 313,518	$ 374,552