Consolidated Statements Of Operations - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 2,324,907	$ 2,357,383	$ 7,636,789	$ 7,385,264
Impairment of Intangible Assets (Excluding Goodwill)	0	0	0	605,006
Net Income (Loss) Available to Common Stockholders, Basic	(150,188)	(140,889)	(274,241)	(220,871)
Costs and expenses:
Cost of Goods and Services Sold	1,383,267	1,280,995	4,552,956	3,909,844
Marketing, general and administrative	858,165	903,666	2,634,329	2,997,023
Research and development	215,700	301,029	669,551	808,426
Impairment of Intangible Assets (Excluding Goodwill)	0	0	0	605,006
Total costs and expenses	2,457,132	2,485,690	7,856,836	8,320,299
Loss from operations	(132,225)	(128,307)	(220,047)	(935,035)
Other (expense) income:
Other Nonoperating Income (Expense)	0	1,350	0	759,371
Interest income	158	792	890	3,632
Interest expense	(5,398)	(1,718)	(16,385)	(9,821)
Total other (expense) income	(5,240)	424	(15,495)	753,182
Net loss	(137,465)	(127,883)	(235,542)	(181,853)
Preferred Stock Dividends, Income Statement Impact	12,723	13,006	38,699	39,018
Net Income (Loss) Available to Common Stockholders, Basic	$ (150,188)	$ (140,889)	$ (274,241)	$ (220,871)
Net income (loss) per share
Earnings (Loss) Per Share, Basic	$ (0.02)	$ (0.02)	$ (0.04)	$ (0.03)
Earnings (Loss) Per Share, Diluted	$ (0.02)	$ (0.02)	$ (0.04)	$ (0.03)
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, Including Assessed Tax	$ 2,098,038	$ 2,117,660	$ 6,937,750	$ 6,667,545
Service [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 226,869	$ 239,723	$ 699,039	$ 717,719