Consolidated Statements Of Operations - USD ($)	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 2,413,794	$ 2,287,988
Costs and expenses:
Cost of Goods and Services Sold	1,503,869	1,176,670
Marketing, general and administrative	892,177	999,427
Research and development	209,322	245,638
Total costs and expenses	2,605,368	2,421,735
Loss from operations	(191,574)	(133,747)
Other (expense) income:
Other Nonoperating Income (Expense)	0	758,021
Interest income	539	1,083
Interest expense	(5,518)	(3,984)
Total other (expense) income	(4,979)	755,120
Net (loss) income	(196,553)	621,373
Preferred Stock Dividends, Income Statement Impact	12,970	13,006
Net Income (Loss) Available to Common Stockholders, Basic	$ (209,523)	$ 608,367
Net income (loss) per share
Earnings (Loss) Per Share, Basic	$ (0.03)	$ 0.08
Earnings (Loss) Per Share, Diluted	$ (0.03)	$ 0.05
Weighted average shares - basic	7,415,329	7,415,329.0
Weighted average shares - diluted	7,415,329	12,188,449
Product [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 2,184,256	$ 2,052,779
Service [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 229,538	$ 235,209