Consolidated Statements Of Operations - USD ($)	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 10,703,070	$ 10,471,617
Net income (loss)	18,081	(52,023)
Costs and expenses:
Cost of Goods and Services Sold	6,096,169	6,044,399
Marketing, general and administrative	4,085,982	3,570,433
Research and development	990,982	890,482
Total costs and expenses	11,173,133	10,505,314
Loss from operations	(470,063)	(33,697)
Other (expense) income:
Other Nonoperating Income (Expense)	506,305	2,530
Interest income	245	985
Interest expense	(18,406)	(21,841)
Total other (expense) income	488,144	(18,326)
Net income (loss)	18,081	(52,023)
Undeclared dividends on preferred stocks	51,600	51,422
Net income (loss) applicable to common shareholders	$ (33,519)	$ (103,445)
Net income (loss) per share
Earnings (Loss) Per Share, Basic	$ (0.00)	$ (0.01)
Earnings (Loss) Per Share, Diluted	$ 0.00	$ (0.01)
Weighted average shares - basic	7,415,329	7,415,329
Weighted average shares - diluted	13,220,202	7,415,329
Product [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 9,980,343	$ 9,547,606
Service [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 722,727	$ 924,011