Consolidated Statements Of Operations - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Revenue from External Customer [Line Items]
Revenues	$ 2,357,383	$ 2,668,670	$ 7,385,264	$ 7,345,933
Costs and expenses:
Cost of Goods and Services Sold	1,280,995	1,397,693	3,909,844	3,880,999
Marketing, general and administrative	903,666	1,030,778	2,997,023	3,171,931
Research and development	301,029	218,014	808,426	540,760
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	0	0	605,006	0
Operating Costs and Expenses	2,485,690	2,646,485	8,320,299	7,593,690
(Loss) income from operations	(128,307)	22,185	(935,035)	(247,757)
Other (expense) income:
Other Nonoperating Income (Expense)	1,350	0	759,371	11,122
Interest income	792	4,015	3,632	7,389
Interest expense	(1,718)	(3,995)	(9,821)	(14,268)
Total other (expense) income	424	20	753,182	4,243
Net loss	(127,883)	22,205	(181,853)	(243,514)
Preferred Stock Dividends, Income Statement Impact	13,006	12,723	39,018	38,735
Net Income (Loss) Available to Common Stockholders, Basic	$ (140,889)	$ 9,482	$ (220,871)	$ (282,249)
Net income (loss) per share
Earnings (Loss) Per Share, Basic	$ (0.02)	$ 0.00	$ (0.03)	$ (0.04)
Earnings (Loss) Per Share, Diluted	$ (0.02)	$ 0.00	$ (0.03)	$ (0.04)
Weighted average shares - basic	7,415,329	7,415,329	7,415,329	7,415,329
Weighted average shares - diluted	7,415,329	12,017,856	7,415,329	7,415,329
Product [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 2,117,660	$ 2,433,408	$ 6,667,545	$ 6,653,254
Service [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 239,723	$ 235,262	$ 717,719	$ 692,679