Annual report pursuant to Section 13 and 15(d)

COMMON STOCK TRANSACTIONS (Details Narrative)

COMMON STOCK TRANSACTIONS (Details Narrative) - USD ($)	1 Months Ended				12 Months Ended
COMMON STOCK TRANSACTIONS (Details Narrative) - USD ($)	Jan. 31, 2022	Apr. 30, 2021	Jan. 31, 2021	Jan. 31, 2020	Apr. 30, 2022	Apr. 30, 2021
Class of Stock [Line Items]
[custom:WarrantsIssuedOnCashlessExercise]					29,144
Exercise shares					2,500,000
Second S 3 Shelf Offering [Member]
Class of Stock [Line Items]
Stock issued new, shares						462,000
Proceeds from sale of equity						$ 4,700,000
Third S 3 Shelf Offering [Member]
Class of Stock [Line Items]
Stock issued new, shares						19,100,000
Proceeds from sale of equity						$ 87,400,000
Executive Officer [Member]
Class of Stock [Line Items]
Number of shares awarded	4,400
Common Stock [Member] \| Consulting Agreements [Member] \| Executive Officer [Member]
Class of Stock [Line Items]
Stock based compensation expense					$ 3,667
Unvested shares					2,933
Officers [Member] \| Common Stock [Member] \| Compensation Agrmt 2020 [Member]
Class of Stock [Line Items]
Stock issued for compensation, shares				4,400
Stock based compensation expense					$ 0	$ 179,521
Unvested shares		0			0	0
Officers [Member] \| Common Stock [Member] \| Compensation Agrmt 2021 [Member]
Class of Stock [Line Items]
Stock issued for compensation, shares			4,400
Stock based compensation expense					$ 29,480	$ 14,740
Unvested shares		2,933			0	2,933
Four Nonemployee Members [Member] \| Common Stock [Member] \| Director Letter Agreement [Member]
Class of Stock [Line Items]
Stock issued for compensation, shares		1,333
Stock based compensation expense					$ 4,342	$ 37,258
Unvested shares		0			0	0
Four Consultants [Member] \| Common Stock [Member] \| Consulting Agreements [Member]
Class of Stock [Line Items]
Stock issued for compensation, shares					668	667
Stock based compensation expense					$ 0	$ 20,225
Unvested shares		0			0	0
A Consultant [Member] \| Common Stock [Member] \| Medical And Scientific Advisory Board [Member]
Class of Stock [Line Items]
Stock issued for compensation, shares						333
Stock based compensation expense					$ 3,542	$ 4,958
Unvested shares		0			0	0
Three Nonemployee [Member] \| Common Stock [Member] \| Director Letter Agreement [Member]
Class of Stock [Line Items]
Stock issued for compensation, shares					1,336
Stock based compensation expense					$ 24,212
Unvested shares		0			0	0
Four Consultant [Member] \| Common Stock [Member] \| Consulting Agreements [Member]
Class of Stock [Line Items]
Stock based compensation expense					$ 9,576
A Consultants [Member] \| Common Stock [Member] \| Medical And Scientific Advisory Board [Member]
Class of Stock [Line Items]
Stock issued for compensation, shares					334
Stock based compensation expense					$ 1,059
Unvested shares					0