Condensed Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Income Statement [Abstract]
Revenue	$ 3,200	$ 7,484
Cost of sales	2,036	5,756
Gross margin	1,164	1,728
Operating expenses:
Research and development	434,198	401,114
Selling, general and administrative	997,063	275,060
Total operating expenses	1,431,261	676,174
Loss from operations	(1,430,097)	(674,446)
Other (expense) income
Interest expense	(143,607)	(77,605)
Gain on extinguishment of debt		250,200
Other income	401
Total other income (expense)	(143,206)	172,595
Net loss	$ (1,573,303)	$ (501,851)
Net loss per share, basic	$ (0.28)	$ (0.15)
Net loss per share, diluted	$ (0.28)	$ (0.15)
Weighted average common shares outstanding, basic	5,645,230	3,313,841
Weighted average common shares outstanding, diluted	5,645,230	3,313,841