Consolidated Statements of Operations - USD ($)	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net sales	$ 12,932,790	$ 11,582,520
Cost of sales	7,167,450	6,800,021
Gross margin	5,765,340	4,782,499
Selling, general and administrative	2,250,576	2,165,190
Litigation expenses	29,479	248,004
Engineering, research, and development	2,548,626	2,295,901
Total operating expenses	4,828,681	4,709,095
Income from operations	936,659	73,404
Interest income	3,951	7,483
Forgiveness of PPP loan	722,577	722,577
Interest expense	0	(29,779)
Interest expense – judgment	(208,250)	(231,474)
Other income, net	30,254	30,819
Total other income	548,532	499,626
Income before income taxes	1,485,191	573,030
Provision (benefit) for income taxes	175,453	(27,027)
Net income	1,309,738	600,057
Preferred dividends	(320,000)	(320,000)
Net income attributable to common shareholders	$ 989,738	$ 280,057
Basic income per common share (in Dollars per share)	$ 0.3	$ 0.09
Diluted income per common share (in Dollars per share)	$ 0.26	$ 0.12
Basic (in Shares)	3,255,887	3,255,887
Diluted (in Shares)	5,095,665	5,073,165